High-speed photodetector characterization using tunable laser by optical heterodyne technique

Haisheng San; Jimin Wen; Liang Xie; Ninghua Zhu; Boxue Feng

doi:10.1117/12.636311

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5 December 2005 High-speed photodetector characterization using tunable laser by optical heterodyne technique

Haisheng San, Jimin Wen, Liang Xie, Ninghua Zhu, Boxue Feng

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Proceedings Volume 6020, Optoelectronic Materials and Devices for Optical Communications; 60200A (2005) https://doi.org/10.1117/12.636311
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

An ultra-wide-band frequency response measurement system for optoelectronic devices has been established using the optical heterodyne method utilizing a tunable laser and a wavelength-fixed distributed feedback laser. By controlling the laser diode cavity length, the beat frequency is swept from DC to hundreds GHz. An outstanding advantage is that this measurement system does not need any high-speed light modulation source and additional calibration. In this measurement, two types of different O/E receivers have been tested, and 3 dB bandwidths measured by this system were 14.4GHz and 40GHz, respectively. The comparisons between experimental data and that from manufacturer show that this method is accurate and easy to carry out.

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Haisheng San, Jimin Wen, Liang Xie, Ninghua Zhu, and Boxue Feng "High-speed photodetector characterization using tunable laser by optical heterodyne technique", Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60200A (5 December 2005); https://doi.org/10.1117/12.636311

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