紧张过度 发表于 2025-3-23 12:58:10
Heterostructure, Confined-Field Lasers,tantial reduction of threshold current density and a corresponding increase in efficiency. As early as 1963, it was proposed that heterojunctions could be used to produce a waveguiding structure with the desired property of optical confinement . At about the same time, others proposed using漫不经心 发表于 2025-3-23 15:46:48
Distributed Feedback Lasers,n optical integrated circuit, in which the laser diodes are monolithically integrated within the semiconductor wafer, it is usually very difficult to form such reflecting surfaces. They can be formed by etching or cleaving, as described in Chap. 12. However, the planar surface of the wafer is then dpenance 发表于 2025-3-23 21:38:26
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http://reply.papertrans.cn/47/4686/468586/468586_16.pngconjunctivitis 发表于 2025-3-24 11:12:13
http://reply.papertrans.cn/47/4686/468586/468586_17.pngDysplasia 发表于 2025-3-24 17:32:27
Robert G. Hunsperger Ph. D.stellen. Auf Grund der Ergebnisse lassen sich Mittel und Wege zeigen, die einen rationellen und schonenden Einsatz der menschlichen Arbeitskraft gestatten. Derartige Untersuchungen wurden in der Industrie schon in großer Zahl durchgeführt. Auch über die bergmännische Arbeit liegen einige Ergebnisse含铁 发表于 2025-3-24 19:31:47
http://reply.papertrans.cn/47/4686/468586/468586_19.png相容 发表于 2025-3-25 02:37:51
Heterostructure, Confined-Field Lasers,nfine the carriers to the junction region . Actually, all three of these mechanisms are present in a heterostructure laser, and their combined effects result in a device that is vastly superior to the basic p-n homojunction laser.