Title :
A distributed feedback ridge waveguide quantum well heterostructure laser
Author :
Miller, L.M. ; Verdeyen, J.T. ; Coleman, J.J. ; Bryan, R.P. ; Alwan, J.J. ; Beernink, K.J. ; Hughes, J.S. ; Cockerill, T.M.
Author_Institution :
Illinois Univ., Urbana, IL, USA
Abstract :
A method for incorporating distributed feedback in a ridge waveguide laser by means of lateral gratings and a single growth step is discussed. The necessary Bragg condition for distributed feedback is satisfied by etching gratings along the ridge in the top confining layer of the laser on either side of the contact stripe. Both Fabry-Periot modes and a single emission peak away from the peak of the gain profile are observed in lasers with cleaved facets. The Bragg reflection emission peak does not shift with increasing drive current, which is characteristic of a distributed-feedback (DFB) laser.<>
Keywords :
diffraction gratings; distributed feedback lasers; optical waveguides; semiconductor junction lasers; Bragg condition; Bragg reflection emission peak; DFB lasers; Fabry-Periot modes; cleaved facets; contact stripe; distributed feedback ridge waveguide quantum well heterostructure laser; drive current; etching gratings; gain profile; lateral gratings; single emission peak; single growth step; top confining layer; Bragg gratings; Distributed feedback devices; Etching; Fabry-Perot; Gallium arsenide; Laser feedback; Laser modes; Optical waveguides; Quantum well lasers; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
