22 GHZ-BANDWIDTH 1.5 MU-M COMPRESSIVELY STRAINED INGAASP MQW RIDGE-WAVE-GUIDE DFB LASERS

Authors
WRIGHT AP BRIGGS ATR SMITH AD BAULCOMB RS WARBRICK KJ
Citation
Ap. Wright et al., 22 GHZ-BANDWIDTH 1.5 MU-M COMPRESSIVELY STRAINED INGAASP MQW RIDGE-WAVE-GUIDE DFB LASERS, Electronics Letters, 29(21), 1993, pp. 1848-1849
Citations number
5
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
29
Issue
21
Year of publication
1993
Pages
1848 - 1849
Database
ISI
SICI code
0013-5194(1993)29:21<1848:2G1MCS>2.0.ZU;2-T
Abstract
A DFB laser with a modulation bandwidth of 22 GHz together with a side mode suppression in excess of 50dB is reported. The wide bandwidth is achieved by using a doped SCH region which is sufficiently thick to ac commodate a DFB grating, and a ridge-waveguide structure with patterne d p-side metallisation to give very low parasitic capacitance. A diffe rential gain of 25 x 10(-16) cm2 is reported for the doped strained MQ W structure used.