Free Space Broadband (Ti:Sapphire) Rotators and Isolators
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Center Wavelength
Clear Aperture
Rotator or Isolator


Clear Aperture (mm) Spectral Bandwidth (nm) Center Wavelength Transmission at Center Wavelength with 25 ° C Operating Temp. Without Polarizers Transmission at Center Wavelength with 25 ° C Operating Temp. With Polarizers Isolation at Center Wavelength with 25 ° C Operating Temp. Without Polarizers Isolation at Center Wavelength with 25 ° C Operating Temp. With Polarizers Pulsed Damage Threshold for a 10nsec pulse Polarizer Type
5.0 720-950 800nm ≥ 97% ≥ 90% See Note 1 ≥ 30dB 300MW/cm2 Glan Laser Calcite
8.0 " " " " " " 100MW/cm2 Cemented PBS Cube
10.0 " " " " " " " "
5.0 800-1050 900nm " " " " 300MW/cm2 Glan Laser Calcite


Notes:
  1. EOT’s broadband rotators are capable of providing ≥30dB isolation when placed between crossed polarizers having an extinction ratio of ≥1000:1.
  2. Polarization Orientation: Please note that the broadband rotators and isolators utilize a 45° crystal quartz rotator. At the center wavelength there will be ≈ 90° polarization rotation in the forward direction. In the reverse direction, there will be ≈ 0° polarization rotation across the entire spectral bandwidth of the device. For more information on how our Broadband isolators rotate the plane of polarized light, please view our Application Notes available on our Publications page.
  3. Escape Ports: All EOT broadband isolators can be ordered with optional escape ports at no extra cost. If rejected power is > 0.5W or rejected energy is >?mJ, EOT recommends that the isolator be ordered with escape ports. Failure to use the escape ports under these conditions could result in optical damage or degrade the performance of your isolator. Please consult EOT’s User’s Guide for additional details.
  4. For incident powers >50W or apertures >10mm, please contact EOT.
  5. Dispersion: Some pulse broadening does occur when using EOT;s broadband isolator. The Sellmeiers Equation for TGG used in the broadband isolators is: Reference: U. Schlarb and B. Sugg, Phys. Stat. Sol. (b) 182.K91 (1994)
  6. Operating and Storage Temperature: Performance of EOT’s broadband rotators/isolators is related to operating temperature. Please contact EOT for additional information on operating and storage temperatures.


   
 
     
 
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