Study of UV absorption in germanosilicate fiber preforms

L. Dong; J. Pinkstone; P. St. J. Russell; D. N. Payne

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1994),
paper CWK4

Study of UV absorption in germanosilicate fiber preforms

L. Dong, J. Pinkstone, P. St. J. Russell, and D. N. Payne

Conference on Lasers and Electro-Optics 1994

Anaheim, California United States
8–13 May 1994
ISBN: 1-55752-341-X

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Fiber Gratings and Related Technologies 1 (CWK)

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L. Dong, J. Pinkstone, P. S. J. Russell, and D. N. Payne, "Study of UV absorption in germanosilicate fiber preforms," in Conference on Lasers and Electro-Optics, T. Baer, A. Smirl, J. Bowers, and D. Miller, eds., Vol. 8 of OSA Technical Digest (Optica Publishing Group, 1994), paper CWK4.

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Abstract

Since the discovery that gratings could be written directly into germanosilicate fibers by side-exposure to UV interference fringes,¹ a considerable amount of work has been directed towards understanding and optimising the underlying physical effect. An absorption band at 242 nm from oxygen deficient sites in these fibers has been identified as playing a key role, its strength ultimately determining how much energy will be absorbed when the fiber is exposed to UV radiation.

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