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Proceedings Paper

Tapered DBR for improving characteristics of DFB and DBR lasers
Author(s): Mohammad H. Rahnavard; Aref Bakhtazad; Habibollah Abiri
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Paper Abstract

In DFB and OBR lasers, phase of corrucation at the reflective end and possible change of reflectivity at the facets, may alter the conditions of oscillation. These result the variation on the output power amplitude and the wavelength. The purpose of tapering at the grating is to reduce these effects. In addition, with dissimilar tapering, we can increase mode selectivity of such lasers. In this paper, we consider reflection coefficient of tapered DBR as a function of end facet reflection coefficient, and deviation from the Bragg's condition. It is shown that tapering improves the operation of DFB and DBR lasers.

Paper Details

Date Published: 1 December 1991
PDF: 11 pages
Proc. SPIE 1562, Devices for Optical Processing, (1 December 1991); doi: 10.1117/12.50793
Show Author Affiliations
Mohammad H. Rahnavard, Shiraz Univ. (Iran)
Aref Bakhtazad, Shiraz Univ. (Iran)
Habibollah Abiri, Shiraz Univ. (Iran)

Published in SPIE Proceedings Vol. 1562:
Devices for Optical Processing
Debra M. Gookin, Editor(s)

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