Optical feedback effects on the performance of Pb(1-x)Sn(x)Se semiconductor lasers.
Optical feedback effects on the performance of Pb(1-x)Sn(x)Se semiconductor lasers.
复制标题
光反馈对Pb(1-x)Sn(x)Se半导体激光器性能的影响。
DOI：
10.1364/ao.18.003978
复制
发表时间：
1979
期刊：
影响因子：
1.9
通讯作者：
J. Hoell
中科院分区：
文献类型：
--
作者：
C. Harward;J. Hoell
The effects of optical feedback on the performance of Pb(1-x)Sn(x)Se semiconductor lasers are reported. Experimental results are presented to demonstrate that uncontrolled optical feedback can occur from optics external to the laser cavity and that these external optical elements can result in the formation of a composite cavity. This composite cavity can sustain a number of narrow closely spaced emission modes with the spectral characteristics of these modes dependent upon the parameters of the cavity. With weak feedback, the spectral width of the amplitude envelope of the new lasing modes resembles that of the original laser mode with no optical feedback. With strongly coupled feedback the envelope of the external cavity modes substantially broadens the apparent linewidth of the laser. Results will be presented that show that these effects can be eliminated, and, moreover, they offer the potential for obtaining spectrally narrow singlemode emission from Pb-salt lasers through the use of carefully designed external cavities.
