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Crenelated-ridge waveguide laser
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Patent number 4,400,813
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Issue date Aug 23, 1983
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Bell Telephone Laboratories, Incorporated
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Ivan P. Kaminow
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H01 - BASIC ELECTRIC ELEMENTS
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Thin film optical waveguide
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Patent number 4,111,523
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Issue date Sep 5, 1978
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Bell Telephone Laboratories, Incorporated
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Ivan Paul Kaminow
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G02 - OPTICS
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Thin-film optical waveguide
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Patent number 3,990,775
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Issue date Nov 9, 1976
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Bell Telephone Laboratories, Incorporated
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Ivan Paul Kaminow
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G02 - OPTICS