Isolators & Circulators
Single- and multi-stage isolators and circulators — single-mode, PM and high-power, for source protection and signal routing.
37 components
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1310/1550 SM Quad Optical Isolator
The OITS Series 1310/1550 Quad Optical Isolator integrates four independent isolators into one compact package to save space and cost. Each isolator guides light at 1310 or 1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing Our proven advanced micro-optics design, it features low insertion loss, high isolation, compact structure, and high stability. These Telcordia-qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors.
1 datasheet
1310/1550nm High-Power Dual-Stage Fiber Optical Isolator
The OIHP Series 1310/1550 high power dual stage optical isolator is designed for high power applications by guiding light at 1310/1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, high power handling, high isolation, compact structure, and high stability. These Telcordia qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes and optical fiber sensors.
TypeWavelengthGradeFiber Type1 datasheet1310/1550nm High-Power PM Dual-Stage Optical Isolator
1310/1550 high power polarization maintaining dual stage optical isolator is a passive device that maintains polarization while guiding light at 1310/1550 nm in the normal direction, and minimizes back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, high power handling, extremely high isolation, high extinction ratio, compact package and high stability, making it an ideal choice for application in fiber amplifier systems, optical fiber sensors and instrumentation.
TypeWavelengthGradePackage1 datasheet1310/1550nm High-Power PM Single-Stage Optical Isolator
1310/1550 high power polarization maintaining single stage optical isolator is a passive device that maintains polarization while guiding light at 1310/1550 nm in the normal direction, and minimizes back reflection and back scattering in the reverse direction for any state of polarization. Employing Our proven advanced micro optics design, it features low insertion loss, high power handling, extremely high isolation, high extinction ratio, compact package and high stability, making it an ideal choice for application in fiber amplifier systems, optical fiber sensors, and instrumentation.
TypeWavelengthGradePackage1 datasheet1310/1550nm High-Power Single-Stage Optical Isolator
The OIHP Series 1310/1550 high power single stage optical isolator is designed for high power applications by guiding light at 1310/1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, high power handling, high isolation, compact structure, and high stability. These Telcordia qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors.
TypeWavelengthGradePackage1 datasheet
1310/1550nm Mini SM Optical Isolator
The OISM Series optical Isolator is a passive device that passes light in the normal direction while blocking light in the reverse direction for any state of polarization. Employing our advanced all glass micro optics design, it features ultra-low insertion loss, high power handling, high isolation, ultra-mini structure, and high stability. The device is RoHS compliant and Telcordia qualified, an ideal choice for applications in fiber amplifiers, pump lasers, and optical fiber sensors.
1 datasheet1310/1550nm MM Dual-Stage Optical Isolator
The OIMM Series 1310/1550 dual stage optical Isolator is a passive device that guides light at 1310/1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, extremely high isolation, a compact structure, and high stability. These Telcordia qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors.
TypeWavelengthGradePackage1 datasheet1310/1550nm MM Single-Stage Optical Isolator
The OIMM Series 1310/1550 single stage optical Isolator is a passive device that guides light at 1310/1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, extremely high isolation, compact structure, and high stability. These Telcordia qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes and optical fiber sensors.
TypeWavelengthGradePackage1 datasheet1310/1550nm PM Single-Stage Optical Isolator
1310/1550 polarization maintaining single stage optical isolator is a passive device that maintains polarization while guiding light at 1310/1550 nm in the normal direction, and minimizes back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, high power handling, extremely high isolation, high extinction ratio, compact package and high stability. These Telcordia qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, optical fiber sensors and instrumentation.
TypeWavelengthGradePackage1 datasheet1310/1550nm SM Dual-Stage Optical Isolator
The OISM Series 1310/1550 dual stage optical Isolator is a passive device that guides light at 1310/1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, extremely high isolation, compact structure, and high stability. These Telcordia qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes and optical fiber sensors.
TypeWavelengthPackageFiber Type1 datasheet1310nm, 1550nm SM Three-Stage Optical Isolator
The OISM Series 1310/1550 three-stage optical isolator is a passive device that guides light at 1310/1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing our proven advanced micro optics design, it features low insertion loss, extremely high isolation, compact structure, and high stability. These Telcordia qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes and optical fiber sensors.
TypeWavelengthGradePackage1 datasheet1550 Isolator / 1480nm WDM
The OIWD Series 3-port fiber optical isolator integrates a 1480 nm WDM with a 1550 nm isolator in a compact format of 4.2 mm diameter and 32 mm length. It guides single mode 1550 nm light in the forward direction while minimizing back reflection and back scattering in the reverse direction for both polarized and unpolarized light. A third port directs single mode 1480 nm light into one of the isolator ports for pumping an erbium-doped fiber. Leveraging Our advanced all-glass thermal matching micro-optics design, the isolator offers ultra-high reliability, high stability over a wide operating range (-45°C to 85°C), low insertion loss, dual-stage high isolation, and a compact structure. Automated production also makes it cost-effective. These Telcordia-qualified components are ideal for applications in fiber amplifier systems, pump laser diodes, and optical fiber sensors.
IsolationIsolator WavelengthWDM WavelengthConfiguration1 datasheet
2 μm High Power Fiber Isolator
This 2 µm passive device transmits high power light from input fiber into output fiber while blocking the unwanted light from back reflection and scattering. Leveraging Our proprietary magneto-optic technology and advanced micro-optic techniques, it offers compact size, high power handling, low loss, and exceptional reliability at a competitive cost. For optical power levels below 20W, heatsink fins are utilized for thermal management, while a proprietary passive liquid cooling system ensures reliable heat dissipation for power levels exceeding 20W. We provide polarization-independent, polarization-maintaining, and custom-designed versions with integrated filter and power monitor, with support for a broad wavelength range and compatibility with specialized fibers.
TypeWavelengthPower HandlingStage1 datasheet
2 µm High Power Isolator
The 2μm Polarization Isolator is designed and manufactured according to Telcordia standards. Our unique manufacturing process and optical path epoxy-free design enhance the device’s high power handling capability. The device is characterized by high performance and high reliability. It is designed specially for 2μm laser systems.
1 datasheet
2 µm Polarization Insensitive Fiber Circulator
This 2 um fiber optical circulator is a three-port passive device that transmits high power light from one port to another port in one direction while directing light propagating in the reverse direction to a third fiber port for any state of polarization. Our proprietary magnetic-optics technology and advanced micro-optic technique enable industry-leading performance in a compact size, power handling, low loss, reliability, and low cost. Our currently provides a full range of polarization-independent, polarization maintaining, and custom design versions with a broad wavelength coverage. We have the experience to incorporate special fibers.
1 datasheet
2 µm Polarization Maintaining High Power Fiber Circulator
This 2 µm PM fiber optical circulator is a three-port passive device that transmits high-power light in one direction while directing reverse-propagating light to a third port, maintaining functionality for any state of polarization. Leveraging Our proprietary magneto-optic technology and advanced micro-optic techniques, it offers compact size, high power handling, low loss, and exceptional reliability at a competitive cost. For optical power levels below 20W, heatsink fins are utilized for thermal management, while a proprietary passive liquid cooling system ensures reliable heat dissipation for power levels exceeding 20W. We provide polarization-independent, polarization-maintaining, and custom-designed versions with integrated filter and power monitor, with support for a broad wavelength range and compatibility with specialized fibers.
1 datasheet
3-Stage SM Optical Circulator 1310nm & 1550nm
The OC Series 1310/1550 three-stage Optical Circulators are non-reciprocal devices that redirect light at 1310/1550 nm from port to port in only one direction while minimizing back reflection and back scattering in the reverse directions for any state of polarization. Employing our advanced micro-optics design, it features low insertion loss, low polarization sensitivity, high isolation, compact structure, and high stability. The excellent characteristics of this product make it an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors.
TypeWavelengthGradePackage Type1 datasheet980/1550nm WDM/Isolator Hybrid
Our 980/1550 nm WDM/Isolator Hybrid is a combination of a filter and a 1550 nm polarization insensitive optical isolator. It is a low-cost model with excellent performance, including low insertion loss, high isolation, high return loss, low polarization-dependent loss (PDL), and low polarization mode dispersion (PMD). This product offers an integrated solution to EDFA application by combining more functions into a very compact package. All our products are Telcordia qualification tested.
WavelengthStageTypeFiber1 datasheet
Bypassable/Switch Optical Circulator 1310nm & 1550nm
CBPC, CBSH, CBPH The CL Series bypassable Optical circulator works in either circulator mode or bypass mode. In the circulator mode, it works as a regular 3 port circulator, light entering port 1 passes out through port 2, and light entering port 2 passes out through port 3. In the bypass mode, light entering port 1 will output through port 3 bypassing port 2. Switching between these two working modes is activated via an electrical control signal. This is achieved using our patent pending non-mechanical configurations, which also feature Latching operation that preserves the selected working mode after the drive signal is removed. Our all solid sate bypassable circulator features low insertion loss, high channel isolation, fast switching speed, and extremely high reliability and repeatability.
PrefixTypeWavelengthSwitch2 datasheets
Compact 1064nm High Power Optical Isolator
The OIBH series of compact 1064 nm high-power in-line optical isolators offers a small form factor and supports power handling up to 2 W. These isolators use bismuth garnet, which exhibits some absorption in the 1060 nm band and therefore can heat up by approximately 50 °C under 2 W operation in ambient conditions. Standard connectors are not suitable for high-power applications; splicing or using Our high-power connectors is recommended.
TypeWavelengthGradePackage1 datasheet
Fiber Optical Circulator 360-785nm
This Series Optical Circulators is a three-port device that allows light to travel in only one direction. A signal entering Port 1 will exit Port 2 with minimal loss, while a signal entering Port 2 will exit Port 3 with minimal loss. Light entering port 2 experiences a large amount of loss at port 1, and light entering port 3 experiences a large amount of loss at ports 2 and 1. Optical circulators are non-reciprocal devices. We uniquely offer high crosstalk between PM input signal at port 1 and reflection signal at port 3 up to 70dB, and high optical power of up to 10W, high polarization extinction ratio of up to 30dB. With our proprietary magnetic-optics technology and proven advanced micro-optics design, the circulator features low insertion loss, high isolation, high power handling, and high stability. Optical circulators are widely used in sensor and communication systems.
TypeIsolationCenter WavelengthPower1 datasheet
Fiber Optical Isolator 10W 1310/1550nm
The OISM Series optical Isolator is a passive device that passes light in the normal direction while blocking light in the reverse direction for any state of polarization. Employing our advanced all-glass micro-optics design, it features ultra-low insertion loss, high power handling (up to 10W CW), high isolation, ultra-mini structure, and high stability. The device is RoHS compliant and Telcordia qualified, an ideal choice for applications in fiber amplifiers, pump lasers, and optical fiber sensors.
StagesWavelengthPower LevelFiber Type1 datasheet
Fiber Optical Isolator 350-400nm
The OIUV Series fiber optical isolator is a passive device that guides lights in the forward direction while blocking light propagating in the reverse direction. The isolator uses special Faraday material to cover these shortwave bands. Our proprietary magnetic-optics technology and proven advanced micro-optics design perfected over 25 years features low insertion loss, high isolation, compact structure, high power handling, and high stability. The available configurations include polarization independence, polarization maintenance, multimode, 5W CW optical power handling, dual-stage high isolation, and integrated output power monitoring tap. The excellent characteristics of this product make it an ideal choice for applications where a high-performance isolator is needed. We also provide customized designs to meet special applications.
1 datasheet
Fiber Optical Isolator 800-1060nm High Power 20W
The OI Series High Power Optical Isolator is designed for high power applications by guiding light in the normal direction while blocking back reflection in the reverse direction. With our proprietary in-fiber beam expansion technology that scales down the power density, these components can intrinsically handle optical power beyond 20W. With our proprietary magnetic-optics technology and proven advanced micro optics design, it features low insertion loss, high isolation, compact structure, and high stability. They are tested under high power before shipping. This product has leading industrial performance. The OI isolator can be made using a variety of fibers including HI980, HI1060, LMA, and other double cladding fibers. Customized designs are available to meet special applications.
ConfigurationTapWavelengthPower1 datasheetFiber Optical Isolator 800-1060nm, up to 5W
The OIST Series fiber optical isolator is a passive device that guides lights at 850/980/1060 nm in the forward direction while blocking light propagating in the reverse direction. Our proprietary magnetic-optics technology and proven advanced micro-optics design perfected over 25 years features low insertion loss, high isolation, compact structure, high power handling, and high stability. The platform can accommodate various fibers of polarization independence, polarization maintenance, multimode, and double cladding. The available configurations include 5W CW optical power handling, dual-stage high isolation, and integrated output power monitoring tap. The tap monitor is placed before coupling into the output fiber. The excellent characteristics of this product make it an ideal choice for applications where a high-performance isolator is needed.
ConfigurationTapWavelengthPower1 datasheet
Fiber to Free Space Isolator/Collimator 500-1060nm High Power
The OI Series Optical Fiber to Free Space Isolator/Collimator is a passive device that guides light near 1060 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. At the same time, it collimates the output beam to a desired beam size. With our proprietary magnetic-optics technology and proven advanced micro optics design, it features low insertion loss, high isolation, compact structure, high power handling, and high stability. The excellent characteristics of this product make it an ideal choice for application in fiber laser. We currently offer a full range of polarization-independent, polarization-maintaining, and multimode versions. Our also provides customized design to meet special applications.
1 datasheet
Free Space Fiber Optical Isolator (780 nm)
The OI Series Free Space 780nm optical Isolator is a passive device that guides light at 780 nm in the normal direction, while minimizing back reflection and back scattering in the reverse direction. With our proprietary magnetic-optics technology and proven advanced micro optics design, it features low insertion loss, high isolation, a compact structure, high power handling, and high stability. We also provide customized designs to meet special applications.
1 datasheetHigh Power Fiber Optical Circulator 1310nm & 1550nm
The 1310/1550 nm high power optical circulator is designed for high power applications. This non-reciprocal device redirects light at 1310/1550 nm wavelengths from port-to-port in only one direction while minimizing back reflection and back scattering in the reverse directions for any state of polarization. Employing our advanced micro optics design, it features low insertion loss, low polarization sensitivity, high isolation, compact structure, and high stability. The excellent characteristics of this product make it an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors. This circulator can be made using a variety of fibers including HI980, HI1060, LMA, and double cladding fibers.
TypeWavelengthPackageFiber Type1 datasheet
High Power Fiber to Free Space Isolator/Collimator 1310nm-2400nm
This passive device transmits high power light from the input fiber into a free-space collimated output beam while blocking unwanted light from back reflection and scattering. Our proprietary magnetic-optics technology and advanced end-cap technique enable industry-leading performance in power handling, low loss, reliability, and cost-effectiveness. Our currently provides a full range of polarization-independent, polarization-maintaining, and custom design versions with broad wavelength coverage and various output beam diameters. We have experience incorporating special fibers.
1 datasheet
High Power Fiber to Free Space Isolator/Collimator 1310nm-2400nm
This 2um Fiber to Free Space High Power Isolator is characterized by low insertion loss, high isolation, high power handling, high return loss, excellent environmental stability, and reliability. It is ideal for fiber laser and instrumentation applications. Contact [email protected] for more information.
1 datasheet
Mini 1060nm Fiber Optical Isolator
The OI Series BIG based 1060 nm Optical Isolator is a passive device that guides light at 1060 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. With our proprietary magnetic-optics technology and proven advanced micro optics design, it features low insertion loss, high isolation, compact structure, high power handling, and high stability. The excellent characteristics of this product make it an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors. We currently offer a full range of polarization independent, polarization maintain, and multimode versions. Our also provides customized design to meet special applications.
ConfigurationWavelengthGradePower1 datasheetMini Fiber Optical Isolator 10W 1310/1550nm
The OISM Series optical isolator is a passive device that passes light in the normal direction while blocking light in the reverse direction for any state of polarization. Employing our advanced all glass micro optics design, it features ultra-low insertion loss, high power handling, high isolation, ultra-mini structure, and high stability. The device is RoHS compliant and Telcordia qualified, making it an ideal choice for applications in fiber amplifiers, pump lasers, and optical fiber sensors.
StagesWavelengthPower LevelFiber Type1 datasheetMM Fiber Optical Circulator 1310nm & 1550nm
The OC Series 1310/1550 optical circulators are non-reciprocal devices that redirect light from port-to-port in one direction while minimizing reflection and scattering in the reverse directions for any state of polarization. Our advanced micro optics design features low insertion loss, low polarization sensitivity, high isolation, compact structure, and high stability. The excellent characteristics of this product make it an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors.
TypeWavelengthPackageFiber Type1 datasheetPM Fiber Optical Circulator 1310nm & 1550nm
The OC Series 1310/1550 PM Optical Circulator is a non-reciprocal device that maintains polarization while redirecting light at 1310/1550 nm from port-to-port in only one direction, minimizing back reflection and back scattering in the reverse direction. Employing our advanced micro optics design, it features low insertion loss, high extinction ratio, high isolation, compact package, and high stability. The excellent characteristics of this product make it an ideal choice for application in fiber amplifier systems, pump lasers, and optical fiber sensors.
TypeWavelengthGradePackage1 datasheetPM Fiber Optical Circulator 1550nm
The OC Series 1310/1550 Optical Circulators are non-reciprocal devices that redirect light at 1310/1550 nm from port-to-port in only one direction while minimizing back reflection and back scattering in the reverse directions for any polarization state. Employing Our advanced micro-optics design, it features low insertion loss, low polarization sensitivity, high isolation, compact structure, and high stability. The excellent characteristics of this product make it an ideal choice for application in fiber amplifier systems, pump laser diodes, and optical fiber sensors. It is possible to produce a circulator with complete circulation at an exceptionally high cost.
TypeWavelengthGradePackage Type1 datasheet
Ultra-High Power Coupled Isolator 1kW
The FHOI series fiber-coupled optical isolators are designed for kilowatt-class, single-polarization laser systems, incorporating Our proprietary configuration with advanced thermal lensing and wavelength shift compensation technologies to ensure stable performance under high optical radiation. These isolators deliver broadband isolation, achieving >40 dB over a 100 nm bandwidth and >30 dB over 300 nm, with power handling up to the kilowatt level. This is accomplished through beam expansion and collimation to reduce power density by matching the beam to the aperture size. Covering a wide spectral range from 450 to 2450 nm, the standard model is centered at 1550 nm, with an optional built-in output tap monitor available. For 1550 nm lasers, the maximum aperture is 10 mm, while for shorter wavelengths such as 1060 nm and 980 nm, it reaches up to 30 mm.
1 datasheet
Wideband Multimode Circulators 400-900 nm
Our Wideband Multimode Circulators (WMC), designed and manufactured in collaboration with strategic partner, are three-port devices that feature flat spectral response, high efficiency multimode transfer (Port 1 ⟶ Port 2), and multimode transmission (Port 2 ⟷ Port 3). They can be used to combine multiple signals or illumination / detection channels within a single fiber. The all-fiber WMC is an efficient, versatile, and robust solution for multimode light management with applications in diffuse reflectance spectroscopy, fluorescence spectroscopy, and/or optogenetics. We offer one of the industry’s most comprehensive selections of fused fiber couplers and splitters, designed for a wide range of application scenarios. Backed by over 25 years of production and engineering expertise, our products deliver industry-leading performance, reliability, and cost-effectiveness.
TypeWavelengthGradePackage1 datasheet