MEASUREMENT OF DIFFERENTIAL GAIN AND LINEWIDTH ENHANCEMENT FACTOR OF INGAAS VERTICAL-CAVITY SURFACE-EMITTING LASER

Authors
DOWD P SUMMERS HD WHITE IH TAN MRT HOUNG YM WANG SY
Citation
P. Dowd et al., MEASUREMENT OF DIFFERENTIAL GAIN AND LINEWIDTH ENHANCEMENT FACTOR OF INGAAS VERTICAL-CAVITY SURFACE-EMITTING LASER, Electronics Letters, 31(7), 1995, pp. 557-559
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
31
Issue
7
Year of publication
1995
Pages
557 - 559
Database
ISI
SICI code
0013-5194(1995)31:7<557:MODGAL>2.0.ZU;2-H
Abstract
The differential gain of an InGaAs/GaAs vertical cavity surface emitti ng laser (VCSEL) has been obtained through measurement of the subthres hold spectral linewidth. The results are in close agreement with a the oretical model for a VCSEL operating at the peak of the gain spectrum. The linewidth enhancement factor has been measured to be similar to 0 .7 at low bias currents again in agreement with theory.