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用半导体激光器和光晶体管组成了组合光双稳激光器,以不同的电路结构实现了与、或、非、与非、或非光逻辑门.特别是利用光可并行输入输出特性实现了光异或门. 相似文献
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文章从两段式吸收型双稳半导体激光器的速率方程组出发,数字模拟了在不同的吸收区偏置下,TABL的输出功率、输出波长和输出电流环宽度等重要特性的变化,并对获得的结果进行了分析。 相似文献
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两段式双稳半导体激光器的行波研究 总被引:1,自引:0,他引:1
采用行波速率方程组对两段式双稳半导体激光器进行理论分析,推导出了腔内光子通量的隐含形式解。利用解析结果,可以进一步探讨双稳半导体激光器的特性。 相似文献
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利用光输出反馈泵浦方式,首次观测到PD/LD单片集成型光学双稳态。电路简单、稳定性好;双稳范围的宽度可根据需要在很大范围内调节。利用半导体激光器的速率方程理论计算了这类双稳激光器的稳态行为,发现实验结果和理论计算符合的很好。 相似文献
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SUNHongxia LUHongchang 《半导体光子学与技术》1998,4(2):74-77,98
Using the ray trace method,three-section semiconductor lasers are studied .An analytic expression of output power for the three-section semiconductor lasers is derived for the first time.Frome this expression,threshold condition is also obtained. 相似文献
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Using the ray trace method, three-section semiconductor lasers are studied. An analytic expression of output power for the three-section semiconductor lasers is derived for the first time. From this expression, threshold condition is also obtained. 相似文献
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提出考虑到载流子侧向扩散分布以及光场模式分布精确描述具有非自建增益波导的电极条形双区共腔半导体双稳态激光器中物理过程的理论模型,从外加电极等势体出发对所涉及各种分布,不作任何人为假设,自洽地计算分析了半导体激光双稳态的静态特性和开关过程,并与现行集中均匀近似假设的计算结果进行比较,并指出其局限性。发现载流子侧向扩散分布和光场模式分布及其相互作用使激射阈值电流显著提高,双稳区宽度减小,开关时间加长。指出采用自建拆射率波导结构可明显改进双稳态性能。 相似文献
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XingshengLiu LawrenceC.Hughes MichaelH.Rasmussen Martin H.Hu Venkata A Bhagavatula Ronald W.Davis Sean Coleman Rajaram Bhat Chung-En Zah 《电子与封装》2006,6(3):6-14
<正>High power broad area semiconductor lasers have found increasing applications in pumping of solid state laser systems and fiber amplifiers, frequency doubling, medical systems and material processing. Packaging including the assembly design, process and thermal management, has a significant impact on the optical performance and reliability of a high power broad area laser. In this paper, we introduce the package structures and assembling process of 980nm broad area lasers and report the performances including output power, thermal behavior and far fields.We will report two types of high power broad area laser assemblies. One is a microchannel liquid cooled assembly and the other is a conduction cooled CT-mount assembly .Optical powers of 15W and 10W were achieved from a 980nm broad area laser with a 120μm stripe width in a microchannel liquid cooled assembly and conduction cooled CT-mount assembly, respectively .Furthermore, a high power of 6.5 W out of fiber was demonstrated from a pigtailed, fully packaged butterfly-type module without TEC ( Thermoelectric cooler ).The measurement results showed that thermal management is the key in not only improving output power, but also significantly improving beam divergence and far field distribution. The results also showed that the die attach solder can significant impact the reliability of high power broad area lasers and that indium solder is not suitable for high power laser applications due to electromigration at high current densities and high temperatures. 相似文献
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简述了半导体激光器可靠设计中的模式控制设计、管芯芯片的晶格匹配、结构设计、管芯芯片的金属化(欧姆接触)设计,以及器件的金属化气密封装设计等的设计考虑。 相似文献
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对描述外腔半导体激光器的多模速度方程组作了适当修正,利用经修正的多模速度方程组,对外腔半导体激光器的选模特性,输出功率及稳频进行了理论分析;从实验上观察了p=1.3um的外腔单纵模的工作情况;模抑制比S0/S1<280,实验结果与理论分析基本一致. 相似文献
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本文报告了一种具有实用价值的半导体大光腔激光器列阵,介绍了该器件的两种典型结构和基本特征,以及设计思想,制作工艺等.该器件阈值电流为2-4A,峰值功率为75-100瓦,是目前国内列阵器件的最高水平. 相似文献
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本文用小信号分析的方法,研究了当对半导体激光器(LD)进行直接调制时(动态)LD的量子噪声,首次给出了LD的动态AM与FM噪声谱的解析表达式.分析表明,调制强度与调制频率均对LD的量子噪声有极大的影响. 相似文献