SIMPLE TECHNIQUE TO IMPROVE THE SPECTRAL QUALITY OF GAIN-SWITCHED PULSES FROM A DFB LASER

被引:17
|
作者
BARRY, LP
DEBEAU, J
BOITTIN, R
机构
[1] France Telecom, CNET-LAB/ RIO, Lannion, Route de Trégastel
关键词
DISTRIBUTED FEEDBACK LASERS; NONLINEAR OPTICAL LOOP MIRRORS;
D O I
10.1049/el:19941462
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The authors show that by coupling the output from a gain-switched DFB laser to a fibre loop mirror the spectral quality of the gain-switched pulse can be greatly improved. The SMSR of a gain-switched 1.5 mu m DFB has been increased by 25dB, and also the chirp has been-reduced, by using this technique. This spectral improvement is vitally important in systems where the gain-switched pulses will pass an optical filter.
引用
收藏
页码:2143 / 2145
页数:3
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