Stabilized Brillouin fiber ring laser (BFRL) using low-loss fused single-mode resonator couplers for application in distributed fiber sensor systems

Matthias Moratzky; Siegmund Schroeter; E. Geinitz

doi:10.1117/12.281178

17 September 1997 Stabilized Brillouin fiber ring laser (BFRL) using low-loss fused single-mode resonator couplers for application in distributed fiber sensor systems

Matthias Moratzky, Siegmund Schroeter, E. Geinitz

Author Affiliations +

Proceedings Volume 3098, Optical Inspection and Micromeasurements II; (1997) https://doi.org/10.1117/12.281178
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany

Abstract

Low loss fused single-mode fiber couplers for high finesse ring resonators have been manufactured for use in the BFRL. The fused fiber couplers have coupling ratios from 1.2 percent to 5 percent with excess loss less than 0.009dB. These components represent the passive part of an al-fiber Brillouin ring-laser pumped by a Nd:YAG laser at (lambda) equals 1319 nm wavelength. With FM-sideband modulation technique we stabilized the round trip wave in the ring resonator RRes, adjusting actively the laser frequency by a thermoelectric cooler and a piezoelectric element. Above pump threshold the RRes starts stimulated Brillouin backscattering. This 13GHz- frequency-shifted-BFRL light source can be used as a probe laser for Brillouin-sensing in a Brillouin optical-fiber domain analysis measurement setup.

Citation Download Citation

Matthias Moratzky, Siegmund Schroeter, and E. Geinitz "Stabilized Brillouin fiber ring laser (BFRL) using low-loss fused single-mode resonator couplers for application in distributed fiber sensor systems", Proc. SPIE 3098, Optical Inspection and Micromeasurements II, (17 September 1997); https://doi.org/10.1117/12.281178

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