E. M. Dianov, A. A. Abramov, M. M. Bubnov, A. M. Prokhorov, A. V. Shipulin, A. N. Gur'yanov, G. G. Devyatykh, V. F. Khopin, “Large-aperture low-loss fibre-optic Raman amplifier of 1.3 μm signals with 30 dB gain”, Kvantovaya Elektronika, 1995, Volume 22, Number 7,Pages <nobr>643

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Letters to the editor

Large-aperture low-loss fibre-optic Raman amplifier of 1.3 μm signals with 30 dB gain

E. M. Dianov^a, A. A. Abramov^a, M. M. Bubnov^a, A. M. Prokhorov^a, A. V. Shipulin^a, A. N. Gur'yanov^b, G. G. Devyatykh^b, V. F. Khopin^b

^a Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod

Abstract: The first fibre-optic Raman amplifier of signals for wavelengths in the range 1.3 μm was developed. The gain was 30 dB when the amplifier was pumped with 350 mW of 1.24 μm radiation. A high amplification efficiency was achieved when the active medium was a large-aperture low-loss single-mode optical fibre made of quartz glass with an enhanced germanium content in the core.

PACS: 42.55.Ye, 42.60.Da, 42.81.Wg

Received: 16.05.1995