Isolators & Circulators
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.

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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 Free Space Fiber Optical Isolator (780 nm) with the closest available models in the Isolators & Circulators family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | Free Space Fiber Optical Isolator (780 nm) (current) | Fiber to Free Space Isolator/Collimator 500-1060nm High Power | High Power Fiber Optical Circulator 1310nm & 1550nm |
|---|---|---|---|
| Wavelength range | Confirm for this model | Confirm for this model | 1310, 1550, C-band, L-band, C+L, Special |
| Optical performance | Confirm for this model | Confirm for this model | Confirm for this model |
| Fiber type | Confirm for this model | Confirm for this model | SMF-28, PM1550 |
| Connector / control | Confirm for this model | Confirm for this model | None, FC/PC, FC/APC, Special |





