LightBend™ 1×1, 1×2 PM Optical Switch

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The LB series 1×2 PM fiber optic switch has a polarization-maintaining fiber switch, which connects optical channels by directing or blocking an incoming optical signal into the output fiber.  This is achieved using a patent pending opto-machnical configuration and achieved via an electrical control signal.  A latching version preserves the selected optical path after the drive signal has been removed, while the non-latching version defaults to either the open or close state when power is removed.  The switches integrated electrical position sensors.  The new material-based advanced design significantly reduces moving part position sensitivity, offering unprecedented high stability as well as an unmatched low cost. Electronic driver is available for this series of switches. The switch is bidirectional.

  • Low Optical Distortions
  • High Isolation
  • High Reliability
  • Fail-Safe Latching
  • Epoxy-Free Optical Path
  • Fault Protection
  • Channel Add/Drop
  • Channel Switching
  • Instrumentation
LB Series 1×1, 1×2 Switch Min Typical Max Unit
 Operation Wavelength             850,1310, 1550 nm
 Insertion Loss [1], [2]   0.6 1.0 dB
 Wavelength Dependent Loss     0.25 dB
 PDL [1], [2] (SM Series Switch Only)     0.1 dB
 Extinction Ratio [1], [2] (PM Series Switch Only)  18 23   dB
 Return Loss [1], [2]  50     dB
 Cross Talk [1], [2]  50     dB
 Switching Time   3 10 ms
 Repeatability     ±0.05 dB
 Durability  107 Cycle
 Operating Voltage   4.5 5 6 VDC
 Operating Current   30 60 mA
 Voltage Pulse Width (Latching)                       20 ms
 Switching Type           Latching / Non-Latching  
 Operating Temperature -5   70 oC
 Storage Temperature -40   85 oC
 Optical Power Handling Standard   300 500 mW
High Power Series   3 5 W
 Package Dimension             36.0L x 26.0W x 8.2H mm


[1]. Exclude connectors.

[2]. Within operating temperature and SOP.


P/N: 0-7