DUAL FIBER FERRULE AND ITS FORMATION

    公开(公告)号:JPH1073742A

    公开(公告)日:1998-03-17

    申请号:JP20035097

    申请日:1997-07-25

    Abstract: PROBLEM TO BE SOLVED: To provide a ferrule suitable for housing dual optical fibers, a manufacturing method therefor and an optical connector and a package incorporating the ferrule. SOLUTION: A dual fiber ferrule 1b has a holding member 7. Along a symmetry axis of the holding member 7, a hole 5b having an elliptical shape and a size suitably for two bare optical fibers 3a, 3b is formed. The elliptical hole 5b decides the angle direction of the fiber core center of the optical fiber in the holding member 7. The dual fiber ferrule 1b can be used for forming an improved optical connector. A registering shape part 9 provided on the holding member 7 of the dual fiber ferrule 1b is used for passively aligning the optical fiber of one connector and the optical fiber of another connector in the case of forming an optical link.

    WAVELENGTH SELECTIVITY ADDING-DROPPING DEVICE

    公开(公告)号:JPH11289562A

    公开(公告)日:1999-10-19

    申请号:JP35819498

    申请日:1998-12-16

    Abstract: PROBLEM TO BE SOLVED: To obtain a device for a wavelength division-multiplexed optical communication network of an independent transmission form by separating identified spectrum components from another spectrum component at the time of dropping through the use of a single optical switch of (1×1) or (2×2) singly or incombination with another optical switch. SOLUTION: A wavelength selectivity adding-dropping multiplexer(WSADM) receives a WDM signal 2 with N-number of spectrum components (namely wavelength) λ1 -λN and removes (namely drops) a first selected spectrum component λ1 from these plural spectrum components. In addition, a second selected spectrum component N+1 is added to these plural spectrum component. In case when a first spectrum component λ1 is dropped, the second spectrum N+1 is added for exchanging this dropped spectrum component. The spectrum components can be added or dropped.

    OPTICAL SWITCH
    3.
    发明专利

    公开(公告)号:JPH11109425A

    公开(公告)日:1999-04-23

    申请号:JP22666998

    申请日:1998-08-11

    Abstract: PROBLEM TO BE SOLVED: To obtain an optical bypass-exchange switch which switches a bypass state and exchange state suitable for a wide range of applications by providing the optical switch with a telecentric imagery device which effectively carries signals from input to output and an optical director which may be so operated as to change the path of the optical signals. SOLUTION: The optical bypass-exchange switch 102 has the telecentric imagery device 104 and the optical director and is operated by the two states enabled by the optical director. The telecentric imagery device 104 receives the first optical signal 192 and is made to form the image in at least one of the first output 90b and the second output 90d. The optical director changes the operation of the optical switch between the exchange state and the bypass state. The first optical signal 92 is imaged in the first output 90b in the exchange state and the first optical signal 91 is imaged to the second output 90d in the bypass state. Then, the switching function is executed when either of the two states, exchange and bypass, is enabled.

    PARTIAL OPTICAL PACKAGE ASSEMBLY AND OPTICAL COMMUNICATION SYSTEM

    公开(公告)号:JPH10197748A

    公开(公告)日:1998-07-31

    申请号:JP36017597

    申请日:1997-12-26

    Abstract: PROBLEM TO BE SOLVED: To provide an optical package assembly for a transmissive optical device by optically aligning a housed optical fiber with a window inside a package component in the state of optical communication with the optical device. SOLUTION: An input optical device 13 is housed in a bore 7 in an input part 3a of ferule 3. This input optical fiber 13 is moved into an input fiber alignment area 23 inside a package component 9 and terminated on a window 27 and similarly, an output optical fiber 15 is housed in the bore 7 in an output part 3b of ferule 3. The output optical fiber 15 is moved into a fiber alignment area 46 in a modulator chip 11 and terminated on a window 49. When positioning the optical fiber in the fiber alignment area 23 or 46, a refraction factor matching fluid can be used. Then, the housed optical fiber can be optically aligned with the window inside the package component in the state of optical communication with the optical device.

    5.
    发明专利
    未知

    公开(公告)号:DE69731178T2

    公开(公告)日:2006-03-02

    申请号:DE69731178

    申请日:1997-12-16

    Abstract: Packaging for a transmissive optical device, methods for manufacturing the packaging, and use of the packaging in an optical communications system are disclosed. The optical package assembly includes a optical package and an optical subassembly. The optical package receives the optical subassembly, which includes a packaging component attached to a transmissive optical device. One end of the optical package receives a first optical fiber that is delivered to a first fiber alignment region in the packaging component. The other end of the optical package receives a second optical fiber that is delivered to a second fiber alignment region in the transmissive optical device. The optical package and fiber alignment regions align the first fiber with the second fiber.

    6.
    发明专利
    未知

    公开(公告)号:DE60201630T2

    公开(公告)日:2006-03-02

    申请号:DE60201630

    申请日:2002-02-12

    Abstract: In an all optical switch an imaging system is optically coupled to the moveable micro mirrors of a MEMS device so as to produce an image of the MEMS device at the end of the imaging system which is not coupled to the MEMS device. The image is substantially in a plane with either input or output of the optical switch. The imaging system may be a telecentric system. The size of the arrangement may be reduced by compacting the optical path, e.g., using appropriate conventional mirrors, and/or employing folded arrangements, i.e., arrangements in which there is only one MEMS device stage that does double duty for both input and output through the use of at least one conventional mirror. The overall system is arranged to account for any inversions introduced.

    9.
    发明专利
    未知

    公开(公告)号:DE60201630D1

    公开(公告)日:2004-11-25

    申请号:DE60201630

    申请日:2002-02-12

    Abstract: In an all optical switch an imaging system is optically coupled to the moveable micro mirrors of a MEMS device so as to produce an image of the MEMS device at the end of the imaging system which is not coupled to the MEMS device. The image is substantially in a plane with either input or output of the optical switch. The imaging system may be a telecentric system. The size of the arrangement may be reduced by compacting the optical path, e.g., using appropriate conventional mirrors, and/or employing folded arrangements, i.e., arrangements in which there is only one MEMS device stage that does double duty for both input and output through the use of at least one conventional mirror. The overall system is arranged to account for any inversions introduced.

    10.
    发明专利
    未知

    公开(公告)号:DE69731178D1

    公开(公告)日:2004-11-18

    申请号:DE69731178

    申请日:1997-12-16

    Abstract: Packaging for a transmissive optical device, methods for manufacturing the packaging, and use of the packaging in an optical communications system are disclosed. The optical package assembly includes a optical package and an optical subassembly. The optical package receives the optical subassembly, which includes a packaging component attached to a transmissive optical device. One end of the optical package receives a first optical fiber that is delivered to a first fiber alignment region in the packaging component. The other end of the optical package receives a second optical fiber that is delivered to a second fiber alignment region in the transmissive optical device. The optical package and fiber alignment regions align the first fiber with the second fiber.

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