LightBend™ Dual 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 Dual 2×2 Bypass OptoMechanical Fiberoptic switch is an integrated single device with 8 fiber ports. Based on Photonwares’s patented technologies, the switch is designed especially for protection and restoration applications. The switch is activated by a low voltage pulse between two states, and the latching operation preserves the selected optical path after the drive signal has been removed. The switch has integrated electrical contact based status sensors. The design significantly reduces moving part position sensitivity, offering unprecedented high stability as well as an unmatched low cost. Electronic driver and circuit design assistance are 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 Dual 2x2 Bypass Switch         Min Typical Max Unit
Wavelength Single Band  1260~1360 or 1510~1620 nm
Dual Band  1260~1360 and 1510~1620
Broad Band      1260~1620
 Insertion Loss 1,2     0.7                   1.0 dB
Wavelength Dependent Loss    0.15            0.4 (DW³) dB
Polarization Dependent Loss                                                          0.1 dB
Return Loss1,2          55 dB
Cross Talk1          55 dB
Switching Time       4        10 ms
Repeatability     ± 0.02 dB
Durability          107 Cycles
Operating Optical Power     300      500* mW
Operating Voltage          4.5        5 6 VDC
Operating Current      30 60 mA  
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
Notes: 1 Within operating temperature and SOP. 2 Excluding Connectors. 3 DW:  Dual band and Broad Band. *  Continuous operation, for pulse operation call