Dual Stage Optical Isolator

The MPS-2050 Dual Stage OpticalIsolator is a singlemode, polarization-independent isolator that can be connected or spliced into an optical transmission line. Offered in a Premium or Value grade, MPS-2000 Single Stage Optical Isolators are used to prevent back reflections along a transmission path in optical networks and components by allowing light to pass in only one direction. Connectors and other optical components present on an optical fiber transmission line can cause diverse back reflections. These back reflections are generated from the end faces of these components. Back reflections are known to have a destabilizing effect on the oscillation of the laser source and operation of the optical fiber amplifier, thus resulting in poor transmission performance. Optical isolators are indispensable devices for eliminating the adverse effects of back reflections in high-speed optical fiber transmittance routes and amplifiers. The MPS-2050 Dual Stage Optical Isolator can be supplied with or without connectors and with 900um buffered or 3mm jacketed fiber.
MPS-2050 Dual Stage Optical Isolator
MPS-2050 Dual Stage Optical Isolator
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  • Telecommunications
  • EDFA
  • Fiber-optic LAN Systems
  • Fiber-optic Systems Testing
  • Sensors


  • High Isolation
  • Low Insertion Loss
  • Low Polarization Sensitivity
  • Environmental Stability and Reliability
  • Epoxy Free Optical Path

Optical Parameters

Spec Premium Value
Operating Wavelength 1310 nm, 1550 nm 1310 nm, 1550 nm
Bandwidth +/- 25 nm +/- 25 nm
Isolation in Band (0ºC-70ºC) > 34 dB > 32 dB
Max Insertion Loss in Band (0ºC-70ºC) 0.8 dB 0.9 dB
Return Loss (Input/Output) > 65/60 dB > 60/55 dB
PDL < 0.10 dB < 0.15 dB


Refer to the MPS-2050 Data Sheet for full specifications.