Isolators & Circulators
1550 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.

Configuration options
Build & quote
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
We confirm the exact part number for your configuration on enquiry.
Isolation: Single Stage · Isolator Wavelength: 1550nm · WDM Wavelength: 1480nm · Configuration: F · Fiber Type: SM28 · Fiber Cover: Bare Fiber · Fiber Length: 1.0m · Connector: None
System integration
Integration and compatibility
Use these checks to connect 1550 Isolator / 1480nm WDM to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Optical interface and fiber
- Fiber Type: SM28, SM28e, PM1310 · Fiber Cover: Bare Fiber, 900µm Tube
- Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
- Wavelength and loss budget
- Isolation: Single Stage, Dual Stage · Isolator Wavelength: 1550nm, 1585nm
- Check the Isolators & Circulators passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
Technical FAQ
Integration questions for 1550 Isolator / 1480nm WDM
Which fiber and connector does the 1550 Isolator / 1480nm WDM use?
Fiber Type: SM28, SM28e, PM1310 · Fiber Cover: Bare Fiber, 900µm Tube. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
How should the 1550 Isolator / 1480nm WDM be included in an optical power budget?
Isolation: Single Stage, Dual Stage · Isolator Wavelength: 1550nm, 1585nm. Check the Isolators & Circulators passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
Need this configured?
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Nearby series comparison
Compare 1550 Isolator / 1480nm WDM with the closest available models in the Isolators & Circulators family.
| Selection parameter | 1550 Isolator / 1480nm WDM (current) | 1310nm, 1550nm SM Three-Stage Optical Isolator | 2 μm High Power Fiber Isolator |
|---|---|---|---|
| Wavelength range | 1550nm, 1585nm | 1310, C Band, L Band | 1940, 2000, 2050 |
| Optical performance | Single Stage, Dual Stage | — | — |
| Fiber type | SM28, SM28e, PM1310 | SMF-28 | SMF28, SM1950, PM1950, PM 1550, 10/130DCF |
| Connector / control | None, FC/APC, Special | None, FC/APC, Special | None, FC/PC, FC/APC, Special |




