Development of low coherence laser diode for fiber-optic gyroscope

Author

Barbosa, Carmem L. ; de Carvalho, R.T. ; Arruda, J.U. ; Da Silva, André C. ; Bättig, R.K.

Author_Institution

Inst. de Estudos Avancados, Sao Jose, Brazil

Volume

1

fYear

1999

fDate

1999

Firstpage

16

Abstract

Broadband sources are the choice for high-performance fiber-optic gyroscopes. These systems rely on expensive broadband sources exhibiting low spectral modulation such as superluminescent diodes and fiber lasers. We present a low-cost alternative using commercial laser diodes. Spectrum broadening is obtained by reducing the laser facet reflectivity and reconstructing the laser cavity with a mirror deposited on the tip of a pigtailed fiber lead. The device fabrication and current experimental results are discussed

Keywords

fibre optic gyroscopes; laser cavity resonators; semiconductor lasers; broadband source; external laser cavity; fiber optic gyroscope; laser facet reflectivity; low coherence laser diode; mirror; spectral modulation; Diode lasers; Fiber lasers; Gyroscopes; Mirrors; Optical coupling; Optical fiber devices; Optical fiber sensors; Optical fibers; Reflectivity; Superluminescent diodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-5807-4

Type

conf

DOI

10.1109/IMOC.1999.867029

Filename

867029