LightBend™ 1x1, 1x2, 2x2 Bypass SM Optical Switch

  • Low Optical Distortions
  • 8 Ports Integration
  • High Isolation
  • High Reliability
  • Fail-Safe Latching
  • Epoxy-Free Optical Path
  • Low Cost

Click 'Spec Sheet' for all available configurations/part#


The LB Series 1×1, 1×2, 2×2 Bypass fiber optic switch connects optical channels by redirecting an incoming optical signal into a selected output fiber. This is achieved using a patent pending opto-mechanical configuration and activated via an electrical control signal. Latching operation preserves the selected optical path after the driver signal has been removed. The switch has 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.

We offer tight-bend-fiber version, which reduces the minimum bending radius from normal 15 mm to 7 mm. This feature enables smaller overall foot print.


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LB 1X1, 1×2, 2×2 Bypass Switch Min Typical Max Unit
  Wavelength Dual Band 1260~1360 and 1510~1620 nm
Single Band  1260~1360 or 1510~1620
Broad Band           1260~1620
  Insertion Loss 1,2   0.5             0.9 dB
  Wavelength Dependent Loss   0.15           0.35(DW3) dB
Polarization Dependent Loss                                            0.1 dB
Return Loss1, 2 55 dB
Cross Talk1       55 dB
Switching Time 3 10 ms
Repeatability ± 0.02 dB
Durability 107 Cycles
Operating Optical Power 4 300 500 mW
Operating Voltage 4.5 5 6 VDC
Operating Current (Latching/Non-Latching) 30 60 mA  
Voltage Pulse Width (square)                      20         ms
Switching Type Latching / Non-Latching  
Operating Temperature -5 ~ 70          oC
Storage Temperature -40 ~ 85       oC
Fiber Type SFM-28
Package Dimension   30.0L x 27.0W X 8.2H mm


  1. 23º over operating wavelength and all SOP.
  2. Excluding Connectors.
  3. DW: Dual band and Broad band.
  4. Continuous operation, for pulse operation call.