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Optical Isolator (LISO)

Optical Isolator

Lightem’s Optical Isolator, utilizing Faraday effect of Magneto optical crystal, is a passive
component which guides optical light in one direction and resists the optical light in the
backward direction. The unique manufacturing process and the epoxy-free optical path design enhance the device’s high power applications. With high performance, high reliability and low cost , it has been widely used in EDFA, Raman amplifiers, LFWDM systems, fiber lasers, transmitters and other fiber optic communication equipment.


  • High Isolation
  • Low Insertion Loss
  • High Return Loss
  • Low Polarization
  • Sensitivity

Parameters Values
Center Wavelength
1310/1550 nm
Operating Waveband
Ac+30 nm
Insertion Loss
≦0.40 dB
≦0.50 dB
Max.Insertion Loss
≦0.60 dB
≦0.70 dB
Polarization Dependent Loss
≦0.05 dB
≦0.10 dB
Isolation Room Temperature
≧30 dB
≧45 dB
Return Loss
≧55 dB
Power Handling
≦500 MW
Pigtail Type
SM 250um Bare Fiber or 0.9mm Loose Tube
Operating Temperature
-5 to 70°C
Storage Temperature
Package Dimension
5.5 x L35 mm