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Proceedings Paper

Stabilized Brillouin fiber ring laser (BFRL) using low-loss fused single-mode resonator couplers for application in distributed fiber sensor systems
Author(s): Matthias Moratzky; Siegmund Schroeter; E. Geinitz
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Paper 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.

Paper Details

Date Published: 17 September 1997
PDF: 10 pages
Proc. SPIE 3098, Optical Inspection and Micromeasurements II, (17 September 1997); doi: 10.1117/12.281178
Show Author Affiliations
Matthias Moratzky, Institute for Physical High-Technology (Germany)
Siegmund Schroeter, Institute for Physical High-Technology (Germany)
E. Geinitz, Institute for Physical High-Technology (Germany)


Published in SPIE Proceedings Vol. 3098:
Optical Inspection and Micromeasurements II
Christophe Gorecki, Editor(s)

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