Fully integrated 4-channel DVS optical module
For multichannel, fully integrated distributed vibration sensing (DVS), the DVS-AOM-L series uses an ultra-narrow-linewidth laser with optimized optomechanical/electrical integration. Serial-port parameter configuration, high integration, environmental-interference resistance, compact size, and convenience are provided. Sharing a narrow-linewidth laser reduces multichannel costs, particularly for demanding sensing applications. Custom solutions and specifications are available to sensor-equipment manufacturers.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Sensing distance | typical:20 km |
| Number of detection channels | 4 channels |
| Modulation mode | External modulation |
| Center Wavelength [Narrow-linewidth laser] | typical:1550.12 nm |
| Equivalent spectral linewidth [Narrow-linewidth laser] | typical:3 kHz |
| Laser RIN noise [Narrow-linewidth laser] | typical:−105 |
| AOM Frequency Shift [Acousto-optic frequency shifter] | typical:80 MHz |
| Extinction Ratio [Acousto-optic frequency shifter] | min:50 dB |
| Pulse Width [Acousto-optic frequency shifter] | min:10 ns; typical:100 ns; max:300 ns |
| Pulse Frequency [Acousto-optic frequency shifter] | typical:2 kHz |
| Peak pulse optical power [Pulsed optical amplifier] | typical:2600 mW |
| Peak input optical power [PIN-EDFA] | max:−33 |
| Average input optical power [PIN-EDFA] | min:−45; typical:−40 |
| Noise Figure [PIN-EDFA; 0dBm input] | typical:4.5 dB; max:5.5 dB |
| Polarization Mode Dispersion [PIN-EDFA] | max:0.5 ps |
| Polarization-dependent gain [PIN-EDFA] | max:0.5 dB |
| PIN output voltage [PIN-EDFA] | max:3 V |
| Photoelectric conversion gain [PIN-EDFA] | typical:4×10^4 |
| Dark Current [PIN-EDFA] | typical:0.1; max:1 |
| 3dB circuit bandwidth [PIN-EDFA] | typical:100 MHz |
Datasheet
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