首页>
外国专利>
METHOD AND SYSTEM FOR STABILIZING TRANSIENT PHENOMENON CONTROL IN LIGHT AMPLIFICATION NETWORK
METHOD AND SYSTEM FOR STABILIZING TRANSIENT PHENOMENON CONTROL IN LIGHT AMPLIFICATION NETWORK
展开▼
机译:稳定光放大网络中瞬态现象控制的方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To provide a system and a method for controlling reactions with respect to a power transient phenomenon in a wavelength division multiplex(WDM) network, whose signal is optically amplified during network reconfiguration or on the occurrence of a failure, when a WDM channel is added or deleted. SOLUTION: A variable band width filter circuit 500 is operated by a first prescribed band width for a first period 0 to detect a change (power transient phenomenon) in a signal power caused by an event of a transient phenomenon and operated by a second specified band width narrower than the first prescribed band width for a period 0+ after the lapse of the first period to nearly suppress a low level signal change such as a remnant of the power transient phenomenon. Thus, the actual power transient phenomenon is maintained to start amplifier gain control based on the change in input power while the remnant is eliminated by preventing the remnant from being interpreted in mistake as an actual transient phenomenon event phenomenon.
展开▼