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Wide band optical amplifier
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Patent number 6,049,417
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Issue date Apr 11, 2000
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Lucent Technologies Inc.
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Atul Kumar Srivastava
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Erbium-doped fiber amplifier
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Patent number 5,027,079
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Issue date Jun 25, 1991
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AT&T Bell Laboratories
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Emmanuel Desurvire
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H01 - BASIC ELECTRIC ELEMENTS
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Erbium-doped fiber amplifier
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Patent number 5,005,175
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Issue date Apr 2, 1991
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AT&T Bell Laboratories
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Emmanuel Desurvire
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H01 - BASIC ELECTRIC ELEMENTS
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Photodiode
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Patent number 4,999,694
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Issue date Mar 12, 1991
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AT&T Bell Laboratories
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Richard F. Austin
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H01 - BASIC ELECTRIC ELEMENTS