Long-period fibre grating writing with a slit-apertured femtosecond laser beam (λ = 1026 nm)

Journal Article · Tue Mar 31 04:00:00 EDT 2015 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2015V045N03ABEH015647· OSTI ID:22551292

Dostovalov, A V; Wolf, A A ^[1]; Babin, S A ^[2]

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1. Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)
2. Novosibirsk State University, Novosibirsk (Russian Federation)

We report on long-period grating (LPG) writing in a standard telecom fibre, SMF-28e+, via refractive index modification by femtosecond pulses. A method is proposed for grating writing with a slit-apertured beam, which enables one to produce LPGs with reduced background losses and a resonance peak markedly stronger than that in the case of grating writing with a Gaussian beam. The method can be used to fabricate LPGs for use as spectral filters of fibre lasers and sensing elements of sensor systems. (fibre and integrated-optical structures)

• OSTI ID: 22551292
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 3 Vol. 45; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
FILTERS
GRATINGS
LASERS
OPTICAL FIBERS
PHOTON BEAMS
PULSES
REFRACTIVE INDEX
SENSORS