Sign In to Your Account


Don't have an account yet? Click here to signup.

Forgot Password? Click here to retrieve it.

Sales & Tech Support: 231-935-4044     

Makros Series 1900 nm - 2000 nm Faraday Rotators & Optical Isolators Data Sheet

Makros Series
1900 nm - 2000 nm Faraday Rotators & Optical Isolators


EOT’s Makros Series Faraday Rotators and Optical Isolators rotate the plane of polarized light 45° in the forward direction and an additional 45° on 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 shields lasers from destabilizing and potentially destructive back-reflected light from interfaces on downstream optics or back-scattered ASE from optical amplifiers. Based on high Verdet constant, low absorption coefficient rotating material, and developed to work with up to 30 W of average input power in the 1900 nm - 2000 nm wavelength range, Makros Series optical isolators provide the ultimate protection for polarized output from Ho and Tm lasers.


· Decouple Ho and Tm laser oscillators from ASE created by amplifiers

· Eliminate relaxation oscillations in mode-locked Ho or Tm lasers

· Protect Ho or Tm lasers from damage due to high pulse energy back reflections


· All devices are completely passive, no tuning required

· All isolators contain escape ports; all rejected beams are deflected at 90°

· Optional λ/2 plate available for all isolators

Specificationsa, b:

1900-2100 nm Rotator
2000-2100 nm Isolatorc
Transmission at 22 ⁰C 
Isolation at 22 ⁰C 
>30 dB
Pulsed Damage Threshold
5 J/cm2 at 10 ns
5 J/cm2 at 10 ns
Power Handling
30 W
30 W

a Product specifications are subject to change.
b Return Loss-free working distance ≥25 mm for a collimated beam.
Escape ports should be used if rejected light is >1 W or 0.15 J/cmat 10ns or forward light is >25 W. All stray beams should be properly terminated.
Note: All products are RoHS compliant.