A. V. Vasil'ev, G. G. Devyatykh, E. M. Dianov, A. N. Gur'yanov, A. Yu. Laptev, V. G. Plotnichenko, Yu. N. Pyrkov, G. E. Snopatin, I. V. Skripachev, M. F. Churbanov, V. A. Shipunov, “Two-layer chalcogenide-glass optical fibers with optical losses below 30 dB/km”, Kvantovaya Elektronika, 1993, Volume 20, Number 2,Pages <nobr>109

This article is cited in 8 papers

Letters to the editor

Two-layer chalcogenide-glass optical fibers with optical losses below 30 dB/km

A. V. Vasil'ev^a, G. G. Devyatykh^b, E. M. Dianov^a, A. N. Gur'yanov^b, A. Yu. Laptev^b, V. G. Plotnichenko^a, Yu. N. Pyrkov^a, G. E. Snopatin^b, I. V. Skripachev^b, M. F. Churbanov^b, V. A. Shipunov^b

^a General Physics Institute, Russian Academy of Sciences, Moscow
^b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod

Abstract: Two-layer optical fibers have been fabricated from As-S chalcogenide glasses. The optical losses of these fibers are 23 ± 8 dB/km at a wavelength of 2.3 μm: a record low for IR optical fibers of this type. Between 1.3 and 2.7 μm, the optical losses do not exceed 100 dB/km. At the wavelength 2.94 μm of an Er:YAG laser, the losses do not exceed 350 dB/km. The far-zone numerical aperture of the fibers is 0.49 at the 90% power level.

UDC: 681.7.068.4

PACS: 42.81.Dp, 42.81.Bm, 42.70.Ce

Received: 29.12.1992