UNBALANCED FACET OUTPUT POWER AND LARGE SPOT SIZE IN 1.3-MU-M TAPEREDACTIVE STRIPE LASERS

Authors
CHO HS PARK KH LEE JK JANG DH KIM JS PARK KS PARK CS PYUN KE
Citation
Hs. Cho et al., UNBALANCED FACET OUTPUT POWER AND LARGE SPOT SIZE IN 1.3-MU-M TAPEREDACTIVE STRIPE LASERS, Electronics Letters, 33(9), 1997, pp. 781-782
Citations number
4
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
33
Issue
9
Year of publication
1997
Pages
781 - 782
Database
ISI
SICI code
0013-5194(1997)33:9<781:UFOPAL>2.0.ZU;2-K
Abstract
Unbalanced facet output power and large spot size in 1.3 mu m laser di odes is demonstrated using a laterally tapered active stripe. A slope efficiency as high as 0.46 W/A is obtained for the front facet of an u ncoated LD. As a result of an unbalanced facet output power, the outpu t power ratio of front to rear facets and the spot size of the LDs can be controlled simultaneously by tailoring the nontaper length in two sectional active geometries without an additional coating process.