Solid State Variable Optical Time Delay

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0 to ms range with 5 bit resolution

The SSTD Series Photonic Time Delay selectively routes optical signals through N fiber segments whose lengths increase successively by a power of 2. Since each switching element allows the signal to either connect or bypass a fiber segment, a delay T may be inserted, which can take any value (in increments of DT) up to the maximum value T. This is achieved using a patent pending non-mechanical configuration and activated via an electrical control signal. Latching operation preserves the selected optical path after the drive signal has been removed. The solid-state configuration eliminates the need for mechanical movement and organic materials. The device is designed to meet the most demanding switching requirements of ultra-high reliability and fast response time.

  • 4-Bit Resolution or more
  • High Speed
  • Non-Mechanical
  • High Reliability
  • Fail-Safe Latching
  • Low Insertion Loss
  • Low Power Consumption
  • Phase-Array Antennas
  • Instrumentation

 

SSTD Series Photonic Delay Line Min Typical Max Unit
Wavelength band    1520 1550     1580 nm
1280 1310 1340 nm
Insertion Loss1 2.5 2.8 3.5 dB
Cross Talk      22 28 35 dB
Switching Time(fall, rise) 50 200 µs
Repetition Rate 1 KHz
Delay Time Range n m s
Polarization Dependent Loss 0.15 0.25 0.45 dB
Polarization Mode Dispersion 0.1 0.2 ps
Return Loss 50 55 60 dB
Operating Temperature 0 60 oC
Optical Power Handling     400 mW
Storage Temperature -40 85 oC
Fiber Type and Length Corning SMF-28, Length >1 m

 

P/N: N/A