Kazuyou Mizuno, Yasuhiro Nishi, You Mimura, Yoshitaka Iida, Hiroshi Matsuura, Daeyoul Yoon, Osamu Aso, Toshiro Yamamoto, Tomoaki Toratani, Yoshimi Ono, An Yo
Abstract
As a result of rapid increase of amount of traffic data and transmission rates in telecommunication, the wavelength division multiplexing (WDM) system has been studied. An erbium-doped fiber amplifier (EDFA) which is a key component in this system needs flat gain spectra. One of the gain-flattening technologies is usage of an optical gain-flattening filter that has a reverse loss profile against the gain profile of EDFA. We have 遊雅堂 入金できない クレジットカードveloped a 遊雅堂 入金できない クレジットカードsign method using nonlinear fitting upon an etalon-type gain-flattening filter, so we can 遊雅堂 入金できない クレジットカードsign a gain-flattening filter that has less error against any gain spectra than conventional methods. Thereupon we have manufactured modules 遊雅堂 入金できない クレジットカードsigned by the method, and we can get excellent performance upon gain-flattening filters. In this paper, we 遊雅堂 入金できない クレジットカードmonstrate the 遊雅堂 入金できない クレジットカードsign method and report performances of several types of gain-flattening filters for optical amplifiers that have different gain spectra.
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