Axial profile of grating coupled radiation from second-order DFB lasers with phase shifts

Author

Kinoshita, Jun-Ichi

Author_Institution

Toshiba Corp., Yokohama, Japan

Volume

26

Issue

3

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

407

Lastpage

412

Abstract

Axial profiles of the grating-coupled radiation field emitted in a direction normal to the surface of distributed-feedback (DFB) lasers with phase-shifted second-order corrugation are theoretically analyzed. The profiles are calculated for nonreflecting DFB lasers with the following phase shifts: λ/4 shift, two λ/8 shifts, and two 3λ/8 shifts. It is demonstrated that the radiation field can be controlled by changing the phase shifts. This result suggests a new method for modulating the surface emission of a DFB laser

Keywords

diffraction gratings; distributed feedback lasers; optical modulation; semiconductor junction lasers; λ/4 shift; λ/8 shifts; 3λ/8 shifts; distributed feedback lasers; grating coupled radiation; laser phase shift control; laser surface emission; nonreflecting DFB lasers; phase shifts; phase-shifted second-order corrugation; radiation field; radiation field axial profiles; second-order DFB lasers; semiconductor lasers; surface emission modulation; Gratings; Interference; Laser beams; Laser modes; Laser theory; Optical coupling; Optical surface waves; Stimulated emission; Surface emitting lasers; Vertical cavity surface emitting lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.52114

Filename

52114