Abstract

The optical absorption spectrum and the 400-nm photoluminescence (PL) of a 1.4-mol. % Ge photosensitive optical fiber preform subjected to high fluence of 193-nm ArF and 248-nm KrF excimer-laser irradiation are measured. The largest absorption increases occur near 200 nm in both cases, but a small net bleaching of absorption is obtained near the laser wavelength for KrF irradiations. The blue PL decreases during ArF exposure but increases with the KrF laser. In similarly excited 9-mol. % Ge fiber preforms the blue PL always decreases. A study of the PL intensity as a function of irradiating laser light intensity shows no evidence of multiple photon absorption effects.

© 1997 Optical Society of America

Photosensitivity of gallium-doped silica core fiber to 193  nm ArF excimer laser

Dinusha S. Gunawardena, Khairul A. Mat-Sharif, Nizam Tamchek, Man-Hong Lai, Nasr Y. M. Omar, Siamak D. Emami, Shahrin Z. Muhamad-Yasin, Mohd I. Zulkifli, Zulfadzli Yusoff, Hairul. A. Abdul-Rashid, Kok-Sing Lim, and Harith Ahmad
Appl. Opt. 54(17) 5508-5512 (2015)

Bragg gratings in defect-free germanium-doped optical fibers

J. Albert, K. O. Hill, D. C. Johnson, F. Bilodeau, S. J. Mihailov, N. F. Borrelli, and J. Amin
Opt. Lett. 24(18) 1266-1268 (1999)

Optical absorption and luminescence of germanium oxygen-deficient centers in densified germanosilicate glass

E. M. Dianov, V. M. Mashinsky, V. B. Neustruev, O. D. Sazhin, V. V. Brazhkin, and V. A. Sidorov
Opt. Lett. 22(14) 1089-1091 (1997)

Refractive-index gratings written by near-ultraviolet radiation

E. M. Dianov, D. S. Stardubov, S. A. Vasiliev, A. A. Frolov, and O. I. Medvedkov
Opt. Lett. 22(4) 221-223 (1997)

Photoinduced absorption change in germanosilicate preforms: evidence for the color-center model of photosensitivity

L. Dong, J. L. Archambault, L. Reekie, P. St. J. Russell, and D. N. Payne
Appl. Opt. 34(18) 3436-3440 (1995)