Fiber optical isolator can transmit light in a certain direction while blocking light in the opposite direction. Fiber isolators protect light sources from back reflections and signals that can cause instabilities and damage. Fiber-Mart offer a range of in-line type and beam expanded isolator, narrowband and broadband free-space optical isolators (Faraday isolators) including 1310/1550nm/1064nm high power polarization maintaining isolator and high power Polarization insensitive circulator. We also can supply a custom isolator service that can combine the best features of our entire isolator products.
An optical isolator, or optical diode, is an optical component which allows the transmission of light in only one direction. It is typically used to prevent unwanted feedback into an optical oscillator, such as a laser cavity. The main component of the optical isolator is the Faraday rotator. It has been shown that a crucial requirement for any kind of optical isolator (not only the Faraday isolator) is some kind of non-reciprocal optics.
Fiber-Mart manufactures a wide selection of narrowband and broadband free-space optical isolators (Faraday isolators) that operate in spectral ranges from 365 nm to 4550 nm, including high-power options, as well as fiber isolators designed for wavelength ranges from 650 to 2010 nm for polarization-independent versions and 770 nm to 2010 nm for polarization-dependent versions. For customers whose needs are not met by our stock selection, we offer a custom isolator service that can combine the best features across our entire isolator family. The optical isolator Selection Guide displays wavelength ranges and isolator types for all stocked isolators.