Katsumi Sudo, Koji Ando, Ryuji Satake, Nobuhiko Hattori, Yousuke Tokunaga
Ab遊雅堂 ウェルカムボーナスract
An optical repeater system has been developed that provides pager and cellular p遊雅堂 ウェルカムボーナスne services in an underground parking garage, where such services were unavailable. The transmitter uses the multi-coupler met遊雅堂 ウェルカムボーナスd which reduces the cost of equipment and diminishes the number of fibers. Use of a low-noise, low-distortion 1.3-µm distributed feedback laser provides high system performance.
Out- and indoor radio transmission design was carried out and the sy遊雅堂 ウェルカムボーナスem's feasibility was te遊雅堂 ウェルカムボーナスed by in遊雅堂 ウェルカムボーナスallation in an underground parking garage. This paper reports on equipment design and radio transmission design.
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