Directional light output from photonic-wire microcavity semiconductor lasers

Author

Zhang, J.P. ; Chu, D.Y. ; Wu, S.L. ; Bi, W.G. ; Tiberio, R.C. ; Tu, C.W. ; Ho, S.T.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Northwestern Univ., Evanston, IL, USA

Volume

8

Issue

8

fYear

1996

Firstpage

968

Lastpage

970

Abstract

We have obtained directional light output from a recently realized InGaAsP photonic-wire microcavity ring lasers. The output was achieved by fabricating a 0.45-μm-wide U-shape waveguide next to a 10-μm diameter microcavity ring laser. The laser has a threshold pump power of around 124 μW when optically pumped at 514 nm. It is comparable to the former structure without output coupling. The output coupling efficiency can be controlled carefully by choosing the spacing between the laser cavity and the waveguide.

Keywords

III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; laser cavity resonators; optical couplers; optical pumping; quantum well lasers; ring lasers; semiconductor quantum wires; 0.45 mum; 10 mum; 124 muW; 514 nm; InGaAsP; InGaAsP photonic-wire microcavity ring lasers; U-shape waveguide; directional light output; laser cavity; microcavity ring laser; optically pumped; output coupling; output coupling efficiency; photonic-wire microcavity semiconductor lasers; quantum well lasers; threshold pump power; Laser excitation; Microcavities; Optical pumping; Optical waveguides; Power lasers; Pump lasers; Ring lasers; Semiconductor lasers; Semiconductor waveguides; Waveguide lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.508706

Filename

508706