1.31 MU-M BEAM-EXPANDER INTEGRATED LASER GROWN BY SINGLE-STEP MOVPE

Authors
SATO H AOKI M TAKAHASHI M KOMORI M UOMI K TSUJI S
Citation
H. Sato et al., 1.31 MU-M BEAM-EXPANDER INTEGRATED LASER GROWN BY SINGLE-STEP MOVPE, Electronics Letters, 31(15), 1995, pp. 1241-1242
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
31
Issue
15
Year of publication
1995
Pages
1241 - 1242
Database
ISI
SICI code
0013-5194(1995)31:15<1241:1MBILG>2.0.ZU;2-5
Abstract
A new structure for a 1.3 mu m-wavelength beam-expander integrated rid ge-waveguide laser is demonstrated that does not require a regrowth st ep. A narrow beam divergence of 5.4 degrees (lateral) and 18.9 degrees (vertical) enables a laser diode to be coupled to a cleaved singlemod e fibre with an efficiency as high as 33% with a 1 dB alignment tolera nce of +/- 2.4 mu m laterally and +/- 1.5 mu m vertically.