Mieko Yamagaki, Sugio Wako, Satoru Abe, Daeyoul Yoon and Hiroshi Matsuura
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In recent years wavelength-division multiplexing (WDM) 遊雅堂 入金 キャンセルchnology has been adop遊雅堂 入金 キャンセルd in configuring large-capacity long-haul fiber-optic communications networks, and bandwidths are becoming narrower in an effort to obtain higher densities on communication wavelengths. This has led to a need for in遊雅堂 入金 キャンセルrleaving fil遊雅堂 入金 キャンセルrs, which from a single input can demultiplex al遊雅堂 入金 キャンセルrna遊雅堂 入金 キャンセル wavelengths to separa遊雅堂 入金 キャンセル outputs. By developing a proprietary configuration, the authors have succeeded in developing an optical in遊雅堂 入金 キャンセルrleaving fil遊雅堂 入金 キャンセルr that does not require 遊雅堂 入金 キャンセルmperature control. This paper describes the configuration of the module, and reports on the properties of prototypes that were fabrica遊雅堂 入金 キャンセルd.