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 Pavos Ultra Series 1010 nm - 1080 nm Faraday Rotators and Optical Isolators Data Sheet

Pavos Ultra Series 1010 nm - 1080 nm Faraday Rotators and Optical Isolators 

EOT’s Pavos Ultra Series 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 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 400 W* of average input power in the 1 µm wavelength range, Pavos Ultra Series optical isolators provide the ultimate protection for polarized output from Nd- or Yb-doped crystal, glass, and fiber lasers.

Benefits:

· Significantly reduced thermal lens focal shift at >100 W reduces the need for additional optics to optimize spot size and significantly reduces the range of thermal lens focal shift as the laser power is varied

· Lower thermal birefringence resulting in higher isolation at >100 W enables the use of higher gain amplifiers and in some cases may eliminate the need for a second isolator

· Greater flexibility in design with respect to B integral due to lower nonlinear refractive index

Features:                               

· Power handling up to 400 W*

· All devices are passive; no tuning required

· All isolators contain escape ports for rejected beam(s)

· Polarizing beam splitter cube polarizers result in no beam offset

Specificationsa:

  1010 nm - 1080 nm Rotator 1010 nm - 1045 nm Isolatorb 1045 nm - 1080 nm Isolatorb
Peak Transmissionc
>95%
>95%
>95%
Peak Isolationc
N/A
>33 dB typical
>27 dB minimum
<>33 dB typical
>27 dB minimum
Extinction >36 dB typical
>30 dB minimum
N/A N/A
Peak Rotation 45⁰ +2/-5⁰ 45⁰ +2/-5⁰ 45⁰ +2/-5⁰
Storage Temperature Range -40 ⁰C - 70 ⁰C -40 ⁰C - 70 ⁰C -40 ⁰C - 70 ⁰C
Tunable Temperature Range 10 ⁰C - 30 ⁰C 10 ⁰C - 30 ⁰C 10 ⁰C - 30 ⁰C
Isolated Beam Pointingd
N/A
<5 mrad
<5 mrad
Damage Thresholdc
7 J/cm2 at 10 ns
600 mJ/cm2 at 8 ps
7 J/cmat 10 ns
600 mJ/cm2 at 8 ps
7 J/cmat 10 ns
600 mJ/cm2 at 8 ps

Product specifications and pricing subject to change without notice.
Escape ports should be used if rejected light is >1 W or 0.15 J/cm2 at 10 ns or forward light is >25 W. All stray beams should be properly terminated.
At customer-specified wavelength and temperature
d Input cube only
Note: All products are RoHS compliant.
*For powers higher tahn 400 W, contact EOT.