Abstract
Summary: In recent years, ultraviolet-grade optical fibers have been developed; consequently, fiber sensors in the ultraviolet region have been studied. Excimer lasers are the most powerful and efficient ultraviolet sources, however the intense radiation of the excimer lasers often induces nonlinear optical phenomena in fibers. The photon energy of the ultraviolet light below 320 nm is more than one half of the bandgap of silica, therefore two photons are simultaneously absorbed. The two-photon absorption is one of the most important phenomena for high-power transmission, because it causes a nonlinear loss. Especially KrF-laser radiation (248 nm) causes a strong two-photon absorption and consequently a high loss in a fiber. 1)
© 1988 Optical Society of America
PDF ArticleMore Like This
R. K. BRIMACOMBE and R. S. TAYLOR
WM51 Conference on Lasers and Electro-Optics (CLEO:S&I) 1988
Toru MIZUNAMI and Keiji TAKAGI
MB.1 Nonlinear Guided-Wave Phenomena (NP) 1993
Kohzo Hakuta, Kunihiko Nakayama, Masashi Fujino, and Hiroshi Takuma
TuC4 International Quantum Electronics Conference (IQEC) 1988