High efficiency injection laser cavities
GORDON, EUGENE IRVING; MAYDAN, DAN
1973-02-06
著作权人BELL TELEPHONE LABORATORIES, INCORPORATED
专利号US3715685
国家美国
文献子类授权发明
其他题名High efficiency injection laser cavities
英文摘要The specification describes injection lasers employing heterosemiconductor structures for obtaining an enlarged cross-sectional area cavity defined by an optical waveguide terminated by the cleaved faces of the semi-conductor structure (usually known as mirrors). The enlarged area of the cavity allows higher power output from the laser for the same power density on the mirrors. The power density is limited by damage to the mirrors. The waveguide produces an output consisting of two plane wave lobes for each mode. Techniques for mode enhancement are described from which higher ultimate power for a single mode and higher efficiency can e predicted without exciting modes of other order. Separation between the thresholds of competing modes can be enhanced, for example, by placing a spherical reflector in the path of one output lobe to focus the energy back into the original cavity while at the same time aperturing the mirror to block modes of other order. This expedient is based upon the uniqueness of the lobe angle for a given mode. Also described is a technique for combining the dual lobe output characteristic of this laser structure by using a beam splitter in reverse.
公开日期1973-02-06
申请日期1971-04-30
状态失效
内容类型专利
源URL[http://ir.opt.ac.cn/handle/181661/47246]  
专题半导体激光器专利数据库
作者单位BELL TELEPHONE LABORATORIES, INCORPORATED
推荐引用方式
GB/T 7714
GORDON, EUGENE IRVING,MAYDAN, DAN. High efficiency injection laser cavities. US3715685. 1973-02-06.
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