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

  • Unmatched Low Cost
  • Low Optical Distortions
  • Low Cross Talk
  • High Reliability
  • Epoxy-Free Optical Path

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


The LB Series miniature fiber optic switch connects optical channels by redirecting incoming optical signals into selected output fibers, in 1×1, 1×2 and 2×2 (bypass) configurations. 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 drive signal has been removed. The switch has integrated status contacts to provide an electrical readout of switch position. The new material based advanced design significantly reduces moving part position sensitivity, offering unprecedented high stability as well as an unmatched low cost. It is designed for use in reconfigurable OADM, optical cross-connect system and network switching for fault protection applications. 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 Mini 1x1, 1x2, 2x2 Bypass SM Fiber Optical Switch Min Typical Max Unit
Operating Wavelength                       850                                          1260~1360 and/or 1510~1620 nm
Insertion Loss [1] 0.5 1.0 dB
Wavelength Dependent Loss  SW[1]                                                                                                                     0.15 dB
 DW[1]                                                                                                         0.25
TDL  0.15 0.4 dB
PDL 0.1 dB
Return Loss  55 dB
Cross Talk  55 dB
Switching Time 3  10 ms
Repeatability ±0.02 dB
Durability                                            109 Cycle
Operating Voltage  4.5 5 6 VDC
Operating Current (Latching/Non-Latching) 30 60 mA
 Voltage Pulse Width (Latching)  20 dB
Switching Type Latching or Non-Latching
Operating Temperature              -5                                                                                                             +70 oC
             -40                                                                                                           +85
Optical Power Handling 300  500* mW
Storage Temperature -40 85 oC
Package Dimension 36.5L x 12.5 W x 8.2H mm
Notes:   [1]. Exclude connectors.   [2]. SW: Single window.   [3]. DW: Dual window. * Continuous operation, for pulse operation call.