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
|Transmission at 22 ⁰C||
|Isolation at 22 ⁰C||
|Pulsed Damage Threshold||
a Product specifications are subject to change.
b Return Loss-free working distance ≥25 mm for a collimated beam.
c Escape ports should be used if rejected light is >1 W or 0.15 J/cm2 at 10ns or forward light is >25 W. All stray beams should be properly terminated.
Note: All products are RoHS compliant.