Fabrication of a long-period grating in a fibre by second-harmonic radiation from a femtosecond Ti:sapphire laser

Journal Article · Fri Nov 30 00:00:00 EST 2001 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2001V031N11ABEH002091· OSTI ID:21454748

Zagorul'ko, K A; Kryukov, P G; Larionov, Yu V; Rybaltovsky, A A; Dianov, Evgenii M ^[1]; Vorob'ev, Nikolai S; Smirnov, A V; Schelev, M Ya; Prokhorov, A M ^[2]

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1. Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)
2. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

Long-period gratings are fabricated in an optical fibre for the first time by second-harmonic radiation from a femtosecond Ti:sapphire laser without the use of an amplifier. The photosensitivity of different fibres exposed to femtosecond pulses is studied. The estimates of the photosensitivity and the thermal properties of long-period gratings showed that the mechanism of the change in the refractive index induced by the 400-nm second-harmonic radiation differs from the corresponding mechanisms upon exposure to UV radiation from excimer lasers or irradiation by amplified 800-nm femtosecond pulses. (optical fibres)

• OSTI ID: 21454748
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 31, Issue 11; Other Information: DOI: 10.1070/QE2001v031n11ABEH002091; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
EXCIMER LASERS
FABRICATION
GRATINGS
HARMONIC GENERATION
OPTICAL FIBERS
PHOTOSENSITIVITY
PULSES
RADIATION EFFECTS
REFRACTIVE INDEX
SAPPHIRE
THERMODYNAMIC PROPERTIES
ULTRAVIOLET RADIATION
CORUNDUM
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
FIBERS
FREQUENCY MIXING
GAS LASERS
LASERS
MINERALS
OPTICAL PROPERTIES
OXIDE MINERALS
PHYSICAL PROPERTIES
RADIATIONS
SENSITIVITY