Large scale WDMTDM sensor array employing erbium-

专利名称：Large scale WDM/TDM sensor array

employing erbium-doped fiber amplifiers

发明人：Craig W. Hodgson,Benjamin J. Vakoc申请号：US09311007申请日：19990513公开号：US06282334B1公开日：20010828

专利附图：

摘要：An acoustic array includes amplifiers and sensor subarrays, both of which areplaced along rungs that connect a return distribution bus with both a signal distributionbus and a pump distribution bus. By placing the amplifiers along the rungs, separate

buses can be used for distributing the optical signal and the pump energy for theamplifiers, thereby facilitating the use of standardized couplers. Time division

multiplexed sensor subarrays are advantageously connected to unique combinations oflaser signal sources and signal return buses, in which the laser signal sources generatedifferent optical wavelengths that are multiplexed on the signal return buses. Opticalsources include intensity modulators on either side of an amplifier to eliminateextraneous noise between optical pulses. In addition, amplified spontaneous emission(ASE) filters may be advantageously used to reduce optical noise at wavelengths otherthan those of interest.

申请人：LITTON SYSTEMS, INC.

代理机构：Knobbe, Martens, Olson & Bear, LLP

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