Polarization Maintaining Fiber-Based Components

PM Fiber to Free Space Isolators

These high-power handling, PM optical isolators have a pigtail fiber input and a collimated-beam output. A wide range of output beam diameters are standard (0.5 mm and 10 mm) for 1064 nm models. Environmentally stable, these isolators offer low insertion loss, high isolation and high return loss. Power handling is specified up to 20W at 1064 nm and 10W at 1550 nm. Please inquire if higher power handling or another operating wavelength is required.

This product line is Telcordia qualified.

If you do not see an isolator from the standard configurations that meets your needs, we welcome the opportunity to review your desired specification and quote a custom fiber to free beam isolator. Specialty fibers with various core sizes, core NA values and cladding sizes can be accommodated.


  • High Isolation
  • High Power Handling
  • High Extinction Ratio
  • Low Insertion Loss
  • High Return Loss
  • Excellent Environmental Stability and Reliability


  • Fiber Amplifiers
  • Fiber Lasers
  • Instrumentation Applications
  • Lab Research

Center WavelengthCollimated Output Beam DiameterMax. Power Handling
1064 nm0.5 1o 10mm5 W
1064 nm0.5 1o 10mm10 W
1064 nm0.5 1o 10mm20 W
1550 nm0.5mm1 W
1550 nm0.5mm3 W
1550 nm0.5mm5 W
1550 nm0.5mm10 W