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$ 2,000.00

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PAVOS+ Ultra 4 mm Faraday Isolators - 1010 nm to 1080 nm


The PAVOS+ Ultra line of Faraday devices offers roughly 1/10th the absorption and thermal lens focal shifta and can theoretically provide ten times lower non-linear refractive index compared to the standard PAVOS+ isolators. This results in less Kerr Lens focal shift and a lower B-integral protecting against catastrophic whole beam self-focusing. The PAVOS+ Ultra line has been specifically designed to meet the needs of the high power and high energy 1 µm (1010 nm to 1080 nm) laser market with stable performance up through 150 W of average power compared to 80 W for the standard PAVOS+. 

For laser systems having large distances between amplification stages, the reduced thermal lens focal shift of the PAVOS+ Ultra results in greater coupling efficiency and simpler optical design. 

Our PAVOS+ Ultra rotators deliver industry-best laser reliability and performance. The PAVOS+ Ultra family of Faraday devices provide superior isolation, especially at higher average power levels, while maintaining very high transmission values. 

EOT's PAVOS+ Ultra products rely on the Faraday effect from high Verdet constant, low absorption materials to rotate the plane of linearly polarized light in the forward direction and an additional 45° of non-reciprocal rotation in the reverse direction. 


  • 1/10th the absorption and thermal lens focal shift compared to standard PAVOSa
  • Theoretically ten times lower non-linear refractive index
  • Completely passive; no tuning required
  • Specified performance to
    150 W
  • Available with polarizing beam splitter cubes or EOT's high performance thin film polarizers
  • EOT's most compact and shortest optical pathlength version of the PAVOS Ultra


  • Input/Output waveplates available
  • Precision mounting capability
  • Customization available


  • High average power applications
  • Ultrafast R&D
  • Microelectronics
  • Medical Systems & Device Manufacturing
  • Micromachining
  • Particle Acceleration
  Minimum Typical
Clear Aperture
4 mm
Max. Rated Power Handlingb
≥125 W
≥150 W
Peak Transmissionc
Peak Isolationc
≥30 dBd
≥27 dBe
≥33 dBd
≥30 dBe
45° ± 2.0°
45° ± 1.0°
Temperature Range
-20 ºC to 60 ºC
Damage Thresholdf
≥6 J/cm2 at 10 ns
≥0.6 J/cm2 at 8 ps
≥10 J/cm2 at 10 ns
≥1 J/cm2 at 8 ps

Product specifications are subject to change. All products are RoHS compliant.
See technical bulletin, Advantages of the PAVOS Product Line
b Specification performance guaranteed to max. power rating, but device has been tested to >400 W without failure.

c At customer-specified wavelength and temperature
d With 1/e2 beam diameter ≤ clear aperture/2 (50% encroachment), ≤5 mW power 
e With 1/e2 beam diameter ≤clear aperture/2 (50% encroachment), max. power
f  Limited by KTF crystal. Polarizers qualified to ≥10 J/cm2 at 10 ns.
NOTE: For operating conditions not specified, contact EOT.


Contact EOT About This Product


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