Integrated distributed Bragg reflector laser with grating coupler for divergent spherical wave emission

Authors
Shimada, N Uemukai, M Suhara, T Nishihara, H Eriksson, N Larsson, A
Citation
N. Shimada et al., Integrated distributed Bragg reflector laser with grating coupler for divergent spherical wave emission, JPN J A P 1, 39(1), 2000, pp. 124-125
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
39
Issue
1
Year of publication
2000
Pages
124 - 125
Database
ISI
SICI code
Abstract
We propose and demonstrate an InGaAs integrated distributed Bragg reflector laser with a grating coupler for divergent spherical wave emission from a virtual diverging point (VDP). The small grating coupler is located close t o the active channel to realize a compact device. An external lens having a large aperture can be used to focus the output into a small spot. Single-m ode lasing up to 2.2 mW and a VDP spot size of 4.6 x 4.5 mu m(2) (theoretic al size 1.0 x 2.1 mu m(2)) were obtained.