1550nm Switchable Optical Circulator

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The CL Series bypassable Optical circulator works in either circulator mode or bypass mode. In the circulator mode, it works as a regular 3 port circulator, light entering port 1 passes out through port 2, and light entering port 2 passes out through port 3. In the bypass mode, light entering port 1 will output through port 3 bypassing port 2.  Switching between these two working modes is activated via an electrical control signal. This is achieved using patent pending non-mechanical configurations, which also features Latching operation that preserves the selected working mode after the drive signal is removed. The all solid sate bypassable circulator features low insertion loss, high channel isolation, fast switching speed and extremely high reliability and repeatability.

  • Solid-State High Speed
  • Low Insertion Loss
  • High Isolation
  • Fail-Safe Latching
  • Non-Mechanical
  • Compact & Rugged
  • Direct Low Voltage Drive


  • Optical Signal Routing
  • PMD compensation
  • Network Protection/Restoration
  • Burst Switching
  • Configurable Add/Drop
  • Signal Monitoring
  • Instrumentation
Operation Wavelength1520   15501570nm
Insertion Loss10.81.2dB
Switch Speed (rise, fall)50200µs
Repetition Rate2KHz
Durability  1011cycle
Polarization Dependent Loss0.10.2dB
Polarization Mode Dispersion0.2ps
Return Loss     50dB
Operating Temperature0       70oC
Optical Power Handling2     300mW
Storage Temperature     -40       85oC
Fiber Type Corning SMF28 or equivalent
Package Dimension     (L)61.5x(W)8.4x(H)8.4mm
  1. Measured without connectors
  2. High power version available.


P/N: N/A