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22 GHZ-BANDWIDTH 1.5 MU-M COMPRESSIVELY STRAINED INGAASP MQW RIDGE-WAVE-GUIDE DFB LASERS
被引:10
作者:
WRIGHT, AP
BRIGGS, ATR
SMITH, AD
BAULCOMB, RS
WARBRICK, KJ
机构:
[1] BNR Europe Ltd, Harlow, CM 17 9NA, London Road
关键词:
DISTRIBUTED FEEDBACK LASERS;
SEMICONDUCTOR QUANTUM WELLS;
D O I:
10.1049/el:19931230
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:
A DFB laser with a modulation bandwidth of 22 GHz together with a sidemode suppression in excess of 50dB is reported. The wide bandwidth is achieved by using a doped SCH region which is sufficiently thick to accommodate a DFB grating, and a ridge-waveguide structure with patterned p-side metallisation to give very low parasitic capacitance. A differential gain of 25 x 10(-16) cm2 is reported for the doped strained MQW structure used.
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页码:1848 / 1849
页数:2
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