Development of low coherence laser diode for fiber-optic gyroscope

Development of low coherence laser diode for fiber-optic gyroscope

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...

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Bibliographische Detailangaben
Hauptverfasser: Barbosa, C.L., de Carvalho, R.T., Arruda, J.U., Da Silva, A.C., Battig, R.K.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Diode lasers
Fiber lasers
Gyroscopes
Mirrors
Optical coupling
Optical fiber devices
Optical fiber sensors
Optical fibers
Reflectivity
Superluminescent diodes
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Zusammenfassung: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.
DOI:10.1109/IMOC.1999.867029