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    OPTICAL INTEGRATED CIRCUIT HAVING PASSIVELY ADJUSTED FIBERS
    1.
    发明专利
    OPTICAL INTEGRATED CIRCUIT HAVING PASSIVELY ADJUSTED FIBERS 失效

    公开(公告)号：JPH1010362A

    公开(公告)日：1998-01-16

    申请号：JP6960897

    申请日：1997-03-24

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： METTLER STEPHEN CLEMENT ,  WHITE IAN ARTHUR

    IPC: G02B6/30

    Abstract: PROBLEM TO BE SOLVED: To realize mutual connections having high performances, low losses and environmentally stable qualities in connection parts of optical fibers of an integrated circuit connected to a plurality of optical fibers by passive matchings. SOLUTION: An optical integrated circuit(OIC) 10 and an optical array 20 (these are written as the OIC, etc., in the following) are mounted on a planar bridge structure 30 to form a device capable of being connected to other devices easily. The OIC, etc., are consisting of silicone substrates 100, 200 including reference areas 14, 24 and a top part side including a plurality of optical paths 16, 50. The optical paths are positioned on respective reference areas with the interval of a correct distance. Etchings are applied and alignment features 13, 23 are included in substrates of bottom parts of the OIC, etc. The planar bridge structure us brought into contact with reference surfaces of the OIC, etc., and alignments in the longitudinal direction of optical paths are performed. When fibers of the array are properly selected, excellent alignments are realized. The entire structure of this circuit is made to be a single structure by placing a bridge substrate on the OIC and by attaching spring clips clipping all constituting substrates.

    CIRCUIT AND METHOD FOR OPTICAL SWITCHING
    2.
    发明专利
    CIRCUIT AND METHOD FOR OPTICAL SWITCHING 失效

    公开(公告)号：JP2000162653A

    公开(公告)日：2000-06-16

    申请号：JP33130999

    申请日：1999-11-22

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： WHITE IAN ARTHUR

    IPC: G02F1/313 ,  H04Q11/00

    Abstract: PROBLEM TO BE SOLVED: To manufacture a non-blocking switch of a large capacity economically and to overcome the fault of optical switching, as well as its restrictive influence on optical communication. SOLUTION: This compact switching constitution uses a network of a mode selective optical circuit 50. Each optical circuit 50 possesses two dual mode waveguides 51, 52, having input terminals 56, 58 and output terminals 57, 59. By a mode selective coupler 53, higher-order mode optical signals are cross- connected between the two waveguides 51, 52 that are optically connected (optically coupled) to the mode selective coupler 53, while basic mode signals pass without being connected. Each waveguide 51, 52 is provided with a mode transformer 54a, 54b, which are arranged along the waveguide before each mode selective coupler 53. This mode transformer 54a, 54b transforms a signal to a higher-order mode, for example according to a command from a CPU 60.

    OPTICAL FIBER COMMUNICATION SYSTEM
    3.
    发明专利
    OPTICAL FIBER COMMUNICATION SYSTEM 失效

    公开(公告)号：JPH1062646A

    公开(公告)日：1998-03-06

    申请号：JP11553497

    申请日：1997-05-06

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： NELSON KATHERINE THERESA ,  REED WILLIAM ALFRED ,  WALKER KENNETH LEE ,  WHITE IAN ARTHUR

    IPC: G02B6/036 ,  G02B6/00 ,  G02B6/02 ,  G02B6/26 ,  G02B6/293 ,  G02B6/34 ,  G02B6/42 ,  H04B10/00 ,  H04B10/08 ,  H04B10/22 ,  H04B10/24

    Abstract: PROBLEM TO BE SOLVED: To realize an optical fiber communication system by which even the function not available hitherto because of deficient cost efficiency can be provided, by utilizing fiber filters simply and at low cost, so that the cost of the system can be reduced. SOLUTION: An optical fiber communication system is provided with a first radiation source 41 of a first wavelength λ1 , a utilization means of the radiation source such as a receiver 46, first optical fiber transmission passages 44, 48 for connecting the first radiation source 41 with the utilization means 46, a second radiation source 42 of a second wavelength λ , a utilization means 47 of the radiation source of the second wavelength, and second optical fiber transmission passages 44, 49 for connecting the second radiation source 42 with the utilization means 47. The first part 44 of the first optical fiber transmission passages 44, 48 is included in the second optical fiber transmission passage. The system is further provided with an optical filter 48 that ejects nearly all the radiation of the second wavelength from the second part of the first optical fiber transmission passages 44, 48.

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