The FST-001-B is a piezo-driven fiber stretcher with an optical delay range of up to 3 mm. The device, including the piezo driver, is packaged in a metal enclosure. Each of the four piezos can be controlled independently, allowing high resolution or large stroke. Piezos can be controlled with an analog signal or a 12-bit TTL signal. Under analog control, the driving circuit acts as a 4-channel voltage amplifier with 30V/V amplification.
Optical Path Delay Range: > 3 mm (in air)
Phase Change Sensitivity: 810π/V at 1550nm, (analog input, using 4 channels)
Internal Voltage Amplification: 30 V/V
Max. Voltage On PZT: 140 volts
Resonance Frequency: 2.2 kHz±0.3 kHz
Insertion Loss 1: < 0.2 dB
Insertion Loss Variation: < 0.1 dB
Return Loss: > 65 dB
PDL: < 0.05 dB
Fiber Type: SMF-28 (others available by request)
Wavelength Range2: 1260 to 1620 nm
Maximum Optical Power: >1000 mW
Analog Input (4 channels): 4.7 volts max. for each channel
Digital Input: 20-pin digital connector to accept 12 bit TTL control signal.