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1050-1080nm Low Power Faraday Rotators & Optical Isolators Data Sheet

1050-1080nm Low Power Faraday Rotators and Optical Isolators


EOT’s 1050-1080nm Low Power Faraday Rotators rotate the plane of polarized light 45° in the forward direction and an additional 45° of non-reciprocal rotation in the reverse direction while maintaining the light’s linear polarization.  When placed between crossed polarizers, a Faraday rotator becomes an optical isolator.  An optical isolator provides high transmission in the forward direction and strongly attenuates any light traveling in the reverse direction effectively protecting seed sources from the deleterious effects of back reflections.  EOT’s 1050-1080nm Low Power Optical Isolators can be ordered with either dichroic glass polarizers, or with polarizing beam splitter cubes.  If protecting a seed source from back reflections from a Q-switched laser, EOT recommends using polarizing beam splitter cubes due to their ability to withstand high pulse energies.  Two optical isolators can be used in series if 60dB isolation is required to assure back reflections do not cause frequency instability from a single frequency single seed laser.


· Decouple seed lasers from slave lasers

· Eliminate frequency instability in single-frequency laser diodes due to optical feedback


· Compact size

· Isolators can be ordered with either dichroic glass polarizers or polarizing beam splitter cube polarizers


Polarizer Type
PBS Cube
Clear Aperture
Transmission at 22⁰C
Isolation at 22⁰C
Damage Threshold  
500mW CW
1MW/cm2  at 10ns

a Product specifications are subject to change.
Note: All products are RoHS compliant.