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18 June 2014 Balanced PIN-TIA photoreceiver with integrated 3 dB fiber coupler for distributed fiber optic sensors
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Abstract
We report a balanced PIN-TIA photoreceiver integrated with a 3 dB fiber coupler for distributed fiber optic sensors. This detector demonstrates -3 dB bandwidth >15 GHz and coupled conversion gain >65 V/W per photodiode through either input port of the 3 dB coupler, and can be operated at local oscillator power of +17 dBm. The combined common mode rejection of the balanced photoreceiver and the integrated 3 dB coupler is >20 dB. We also present measurement results with various optical stimuli, namely impulses, sinusoids, and pseudo-random sequences, which are relevant for time domain reflectometry, frequency domain reflectometry, and code correlation sensors, respectively.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shubhashish Datta, Sruti Rajagopalan, Shaun Lemke, and Abhay Joshi "Balanced PIN-TIA photoreceiver with integrated 3 dB fiber coupler for distributed fiber optic sensors", Proc. SPIE 9098, Fiber Optic Sensors and Applications XI, 90980Y (18 June 2014); https://doi.org/10.1117/12.2050325
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