4.4-μm Raman generation with an average power above 1 W in silica revolver fibre

Journal Article · Sat Dec 01 04:00:00 EST 2018 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QEL16836· OSTI ID:23004846

Astapovich, M. S.; Gladyshev, A. V.; Khudyakov, M. M.; Kosolapov, A. F.; Likhachev, M. E.

We report the first gas-filled fibre Raman laser emitting at 4.42 μm with an average power of 1.4 W. Its gain medium is silica revolver fibre with a molecular hydrogen ({sup 1}H{sub 2}) filled hollow core. Owing to the use of linearly polarised 1.56-μm pump light and a polarisation-maintaining Raman laser configuration, we have achieved a quantum efficiency of 53% for single-stage 1.56 → 4.42 μm conversion. This fibre Raman laser can find application in medicine, gas analysis and other areas. (paper)

• OSTI ID: 23004846
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 12 Vol. 48; ISSN 1063-7818; ISSN QUELEZ
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
FIBERS
GAS ANALYSIS
HYDROGEN
LASERS
POLARIZATION
PUMPING
QUANTUM EFFICIENCY
SILICA
VISIBLE RADIATION