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Conferences > CLEOPR > 1995 > FI > FI5
  • The Pacific Rim Conference on Lasers and Electro-Optics
  • Technical Digest Series (Optica Publishing Group, 1995),
  • paper FI5

Analysis in second harmonic distortion of distributed feedback laser diode by phase measurement

Takashi Nakabayashi, Hidenori Kamei, Masahiro Kato, Hidetoshi Kobayashi, Jiro Fukui, and Tsukuru Katsuyama

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Abstract

Low modulation distortion light sources are indispensable for analog fiber-optic communication systems. Distributed feedback (DFB) laser diodes have been developed for this purpose. Flowever, Distortions based on non-linearities caused by mainly gain compression in active region, longitudinal hole burning (LHB) and leakage current1−4 are quite serious problem. In this paper, we handled distortion as an electric RF signal and analyzed its characteristics for the first time by measuring the phase difference between modulation signal and second harmonic distortion (2HD). These results suggest the existence of enhancement/cancellation mechanism of individual distortion sources.

© 1995 IEEE

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