LOW-THRESHOLD CW OPERATION OF CIRCULAR-GRATING SURFACE-EMITTING DBR LASERS USING MQW AND A SELF-ALIGNED PROCESS

Authors
FALLAHI M DION M CHATENOUD F TEMPLETON IM BARBER R SEDIVY J
Citation
M. Fallahi et al., LOW-THRESHOLD CW OPERATION OF CIRCULAR-GRATING SURFACE-EMITTING DBR LASERS USING MQW AND A SELF-ALIGNED PROCESS, IEEE photonics technology letters, 6(11), 1994, pp. 1280-1282
Citations number
8
Categorie Soggetti
Optics,"Physics, Applied
Journal title
IEEE photonics technology letters → ACNP
ISSN journal
10411135
Volume
6
Issue
11
Year of publication
1994
Pages
1280 - 1282
Database
ISI
SICI code
1041-1135(1994)6:11<1280:LCOOCS>2.0.ZU;2-T
Abstract
In this letter, we present the first room temperature continuous wave operation of circular-grating surface-emitting DBR lasers. The structu re is an InGaAs/GaAs strained multiquantum-well. A modified fabricatio n process with a better control on the steps is used. A CW threshold c urrent as low as 26 mA at a lasing wavelength of about 977 nm are repo rted. This is the first demonstration of CW operation for these lasers in any material system.