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The Asymmetrical Architecture of New Optical Switch Device

出版	INTECH Open Access Publisher, 2010
ISBN	95330707229789533070728
URL	http://books.google.com.hk/books?id=EGu5oAEACAAJ&hl=&source=gbs_api

註釋A new switching device which utilizes the combined concepts of OADM and OXC operation is presented through the development of OXADM. The experimental results show the value of crosstalk and return loss is bigger than 60 dB and 40 dB respectively. In our previous results have also shown the value of insertion loss was less than 0.06 dB under ideal condition, the maximum length that can be achieved is 94 km. While when considering the loss, with the transmitter power of 0 dBm and sensitivity 22.8 dBm at a P2P configuration with safety margin, the required transmission is 71 km with OXADM. The OXADM switching mechanism has been explained and compare with other existing optical switch; DC optical switch and OXC. The OXADM optical device is particularly designed for WDM metro application. It can be used as restoration switch in FTTH network. OXADM can also work as any single device such as demultiplexer, multiplexer, OADM, OXC, WSC, and WRB. In other application, the OXADM can also provide survivability through restoration against failure by means of dedicated and shared protection that can be applied in WDM ring metropolitan network.