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Research on Dual-Wavelength Semiconductor Laser Based on the Coupled-Cavity Structure

Author: GaoZhenYang
Tutor: HeJianJun；ShenYongXing
School: Zhejiang University
Course: Optical Engineering
Keywords: Quarter-wavelength coupled-cavity Dual-wavelength semiconductor laser Transfer matrix method Langevin noise source Noise driven rate equation Deep etching grooves
CLC: TN248.4
Type: Master's thesis
Year: 2010
Downloads: 68
Quote: 0
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Abstract


In this paper we propose a novel dual-wavelength quarter-wave coupled-cavity semiconductor laser structure and using the Langevin noise (Langevin noise) driven rate equations to analyze the pattern of such lasers competition . This dual- wavelength laser consists of two coupled cavities and as an active mode selection filter monolithically integrated with a simple structure , making the advantages of easy , and can achieve as \shot, these two modes of lasing threshold of the same frequency difference can be injected into the cavity of the two active current size of the adjustment , and its optical carrier generation millimeter wave tunable microwave systems have great potential applications. We transfer matrix method (Transfer Matrix Method, TMM) first deduced bimodal spectrum position and threshold gain analytical expression . To simulate these two competing effects lasing light modes , we have created a numerical model used to calculate the spatial hole burning effect included , including the saturation coefficient and suppression coefficient , the two coefficient than the conventional rate equation using non-linear gain coefficient has a more profound physical meaning . We calculated the two chambers in a variety of active pumping current level of saturation coefficient and suppression coefficient and studied the Langevin noise sources for dual-mode stability. We also showed that two competing modes threshold gain difference can be monolithically integrated through a filter on the electrical feedback signal to dynamically fine-tuned to achieve a stable dual-mode lasing simultaneously . This paper also studied this coupling cavity semiconductor laser experiments produced , presented a complete production process, and study the deep etching tank protection programs and low ICP power ridge waveguide etching process and so on. On samples made ??a preliminary test work confirms this structure based on dual-wavelength coupled-cavity semiconductor lasers practical feasibility .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser > Semiconductor lasers
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