Optimization of multiple exposure gratings for widely tunable lasers

Author

Sarlet, G. ; Morthier, G. ; Baets, R. ; Robbins, D.J. ; Reid, D.C.J.

Author_Institution

Dept. of Inf. Technol., Ghent Univ., Belgium

Volume

11

Issue

1

fYear

1999

Firstpage

21

Lastpage

23

Abstract

A theoretical study of the reflection spectra of multiple holographic exposure distributed Bragg reflector gratings is presented. We will show that such a grating can exhibit a uniform reflection comb if the relative phases of the superimposed gratings are well chosen. The tolerances on the optimal phases are of the order of 0.09 radians for six superimposed gratings to 0.04 radians for ten gratings.

Keywords

distributed Bragg reflector lasers; holographic gratings; laser tuning; optical transmitters; optimisation; reflectivity; semiconductor lasers; wavelength division multiplexing; multiple exposure grating optimisation; multiple holographic exposure distributed Bragg reflector gratings; optimal phase; reflection spectra; superimposed grating relative phases; theoretical study; uniform reflection comb; widely tunable lasers; Bragg gratings; Etching; Frequency; Holography; Laser tuning; Optical reflection; Optical waveguides; Semiconductor lasers; Tunable circuits and devices; Waveguide lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.736377

Filename

736377