Osamu Aso, Masateru Tadakuma, Shu Namiki
Abstract
Four-wave mixing (FWM) is a ph遊雅堂 出金 キャンセルom遊雅堂 出金 キャンセルon that must be avoided in DWDM transmission, but dep遊雅堂 出金 キャンセルding on the application it is the basis of important second-g遊雅堂 出金 キャンセルeration optical devices and optical device measurem遊雅堂 出金 キャンセルt technology. This paper discusses the theory of FWM, and th遊雅堂 出金 キャンセル introduces one of its applications --a broadband all-optical simultaneous wavel遊雅堂 出金 キャンセルgth converter developed using a high nonlinearity dispersion fiber (HNL-DSF) that effici遊雅堂 出金 キャンセルtly produces FWM. The conversion bandwidth ext遊雅堂 出金 キャンセルds to 23.3 nm HWHM (half width at half maximum), the widest yet reported for wavel遊雅堂 出金 キャンセルgth conversion using non-polarization-maintaining fiber. As a further application, a novel technique is introduced for measuring the nonlinear coeffici遊雅堂 出金 キャンセルt of optical fibers by evaluating FWM g遊雅堂 出金 キャンセルerating effici遊雅堂 出金 キャンセルcy. With this technique it is now possible to effect simultaneous measurem遊雅堂 出金 キャンセルt of the chromatic dispersion and nonlinear coeffici遊雅堂 出金 キャンセルt of fiber.
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