LARGE SCALE WDMTDM SENSOR ARRAY EMPLOYING ERBIUM-

专利名称：LARGE SCALE WDM/TDM SENSOR ARRAY

EMPLOYING ERBIUM-DOPED FIBERAMPLIFIERS

发明人：HODGSON, Craig, W.,VAKOC, Benjamin, J.申请号：EP00917599.3申请日：20000124公开号：EP1177412B1公开日：20100825

摘要：An acoustic array includes amplifiers (124) and sensor subarrays (112), both ofwhich are placed along rungs that connect a return distribution bus (144) with both asignal distribution bus (116) and a pump distribution bus (132). By placing the amplifiers(124) along the rungs, separate buses can be used for distributing the optical signal andthe pump energy for the amplifiers (124), thereby facilitating the use of standardizedcouplers (121-123; 136-139; 140-143). Time division multiplexed sensor subarrays (230)are advantageously connected to unique combinations of laser signal sources (200-203)and signal return buses (270-274), in which the laser signal sources (200-203) generatedifferent optical wavelengths (μ1, μ2, μ3, μ4) that are multiplexed on the signal returnbuses (270-274). Optical sources include intensity modulators (910) on either side of anamplifier (920) to eliminate extraneous noise between optical pulses. In addition,amplified spontaneous emission (ASE) filters (940) may be advantageously used toreduce optical noise at wavelengths other than those of interest.

申请人：LITTON SYSTEMS INC

地址：US

国籍：US

代理机构：Mackenzie, Andrew Bryan

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