PAVOS COHERENT | Alldatasheet

Document overview

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Technical content

The Coherent PAVOS line of Faraday devices builds on over 30 years of experience in successfully protecting lasers from destabilizing and potentially damaging back reflections. These products have been specifically designed to meet the needs of high power and high energy 1 μm (1010 nm to 1080 nm) lasers. Our PAVOS rotators and isolators deliver industry-best laser reliability and performance while providing superior isolation and maintaining very high transmission. Our PAVOS 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. The PAVOS is available as a rotator or an isolator. Faraday Rotators and Isolators – 1010 nm to 1080 nm

FEATURES

  • Completely passive; no tuning required
  • Rugged design suitable for harsh operating environments
  • Specified performance to 50 W; tested to >400 W
  • Optically contacted PBS cubes for improved damage threshold
  • All isolators contain rejected beam escape ports
  • Input polarization adjustability PAVOS Laser Components and Accessories

APPLICATIONS

  • Ultrafast, pulsed, and CW lasers
  • Microelectronics
  • Medical Systems and Device Manufacturing
  • Micromachining
  • Particle Acceleration OPTIONS
  • Input/Output waveplates available
  • Precision mounting available
  • Precision rejected beam pointing available
  • Customization requests encouraged

© 2023 Coherent Corp. Legal notices : coherent.com/legal For more information www.coherent.com Isolator Performance Isolator Performance -35 Device Temperature (°C) 100 Transmission (%) Isolation (dB) Isolation Transmission -20 Wavelength (nm) 100 Transmission (%) Isolation (dB) Isolation Transmission Specifications PAVOS+ PAVOS (Small Aperture) PAVOS (Large Aperture) Rotator Rotator Isolator Rotator Isolator Clear Aperture (mm) 4 5 5 8, 12, 15, 20, 25, 35, 45 8, 12, 15, 20, 25, 35, 45 Wavelength(s)1 (nm) 1030, 1064 1030, 1064 1030, 1064 10303, 1064 10303, 1064 Transmission (%) 98 95 95 98 92 Isolation2 (dB) N/A N/A 33 (minimum) 37 (typical) N/A 30 (minimum) 35 (typical) Extinction2 (dB) 33 (minimum) 35 (minimum) N/A 30 (minimum) N/A Max. Rated Power Handling (W) 50 Damage Threshold 10 J/cm² at 10 ns

1 J/cm² at 8 ps

1 MW/cm² CW

Notes: 1. Other wavelengths available upon request. 2. At operating wavelength and temperature (default = 22°C). 3. Not available in aperture sizes greater than 12 mm.