Highly collimated laser beams from electrically pumped SH GaAs/GaAlAs distributed−feedback lasers

15 January 1975

journal article
conference paper
Published by AIP Publishing in Applied Physics Letters

Vol. 26 (2) , 48-50
https://doi.org/10.1063/1.88068

Abstract

Utilizing an electrically pumped single−heterostructure GaAs/GaAlAs distributed−feedback laser diode operating in fourth order we have obtained a highly collimated laser beam which is coupled out normal to the plane of the p−n junction rather than through the cleaved end mirrors. This beam is found to have an angular divergence of 0.35° in the dimension determined by the grating and is virtually 100% polarized with the E vector parallel to the grooves of the corrugated feedback structure.

Keywords

This publication has 3 references indexed in Scilit:

Distributed-feedback single heterojunction GaAs diode laser
Applied Physics Letters, 1974
Holographic Thin Film Couplers
Bell System Technical Journal, 1970
Coupled Wave Theory for Thick Hologram Gratings
Bell System Technical Journal, 1969