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Compensation of intermodulation distortion of laser diode by using optoelectronically predistorted signals
Author(s) -
Choi InHyuk,
Lee SangHoon,
Kwon HyukChoon,
Choi YoungWan,
Han SangKook
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21566
Subject(s) - intermodulation , predistortion , microwave , compensation (psychology) , diode , signal (programming language) , distortion (music) , materials science , laser , spurious free dynamic range , dynamic range , optoelectronics , laser diode , electronic engineering , optics , electrical engineering , physics , telecommunications , engineering , computer science , amplifier , psychology , cmos , psychoanalysis , programming language
We have experimentally demonstrated the predistortion scheme for linearization of a laser diode which transmits 1.2‐ and 1.25‐GHz RF signal over single‐mode fiber. The suppression of intermodulation distortion was achieved by using an additional laser diode to realize the predistorted signals. We have shown a 22.5‐dB reduction of the 3 rd ‐order intermodulation distortion and an 11‐dB improvement in the spurious‐free dynamic range. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1144–1148, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21566