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Tunable millimeter-wave generation with subharmonic injection locking in two-section strongly gain-coupled DFB lasers
Hong, Jin Hui, Rongqing
Hong, Jin
Hui, Rongqing
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Abstract
Using two-section dual-mode strongly gain-coupled (SGC) distributed feedback (DFB) lasers, tunable millimeter-wave (mm-wave) generation from 18 to 40 GHz can be achieved under CW bias conditions, Due to its high speed and excellent dynamic single-mode yield in SGC DFB lasers, each section can be individually modulated to beyond 10 GHz. Using subharmonic injection locking, the linewidth of the generated mm-wave can be significantly reduced and is found to be less than 30 Hz which is limited by the stability of the microwave source and the resolution of the spectrum analyzer. This device provides a useful source to high-bit-rate optical systems and/or high-frequency wireless communications.
Description
©2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Date
2000-05
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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Keywords
Distributed feedback lasers, Dual-wavelength operation, Quantum wells, Strongly gain-coupled dfb lasers, Tunable millimeter wave source, Wireless communications
Citation
Hong, J; Hui, RQ. Tunable millimeter-wave generation with subharmonic injection locking in two-section strongly gain-coupled DFB lasers. IEEE PHOTONICS TECHNOLOGY LETTERS. May 200. 12(5) : 543-545