公开(公告)号：JP2000221342A

公开(公告)日：2000-08-11

申请号：JP2000016484

申请日：2000-01-26

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ADAMS LAURA ELLEN ,  EGGLETON BENJAMIN JOHN ,  ESPINDOLA ROLANDO PATRICIO ,  JIN SUNGHO ,  MAVOORI HAREESH ,  ROGERS JOHN A ,  STRASSER THOMAS ANDREW

IPC: G02B5/18 ,  G02B1/10 ,  G02B6/02 ,  G02B6/34 ,  G02B26/00 ,  G02F1/01 ,  H04B10/02 ,  H04B10/18 ,  H04B10/43 ,  G02B6/10 ,  H04B10/28

Abstract: PROBLEM TO BE SOLVED: To make it possible to use an optical grating device as a device for regulatable dispersion correction and to selectively change the characteristics and performance thereof by constituting the device in such a manner that the spacings between grating elements can be changed by a variable coating when strain in an axial direction is impressed to a waveguide. SOLUTION: A movable magnet 15a is directly added to the fiber coating 14 adjacently to a grating region in order to induce the strain in the fiber. A magnet 15b which does not move is added to a fixed base material 16 or a guide rail in a bond region 13b. At this time, the magnet 15a induces the shift in a wavelength distribution having a possibility useful to some of applications of dispersion correction. When the strain in the axial direction is impressed to the waveguide by the magnet moment induced in the magnets 15a and 15b, the spacings between the grating elements may be changed by the variable coating.

公开(公告)号：JP2003220493A

公开(公告)日：2003-08-05

申请号：JP2002016356

申请日：2002-01-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  MAVOORI HAREESH ,  RAMIREZ AINISSA G

IPC: B23K35/40 ,  B23K35/14

Abstract: PROBLEM TO BE SOLVED: To enable to manufacture an oxidation resistance reactive solder and the solder material in order to obtain excellent joining with high reliability of ceramics and a metal. SOLUTION: A metal composite layer having an inner region and a surface region is formed by actively providing reactive atoms of higher concentration (a 3B group, a 4B group, and rare earth elements or the like) to the surface region compared with the inner region and it is made to be the solder material. 1) An ion implantation method, 2) a clad method, 3) coating by an immersion method, 4) accumulation of the coating layer, and 5) electroplating or the like may be used for the formation of the composite layer. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2000244953A

公开(公告)日：2000-09-08

申请号：JP2000040416

申请日：2000-02-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FATEHI MOHAMMED T ,  JIN SUNGHO ,  KNOX WAYNE HARVEY ,  MAVOORI HAREESH

IPC: H04B10/02 ,  G02B6/293 ,  G02B6/34 ,  G02B6/35 ,  H04Q3/52 ,  H04Q11/00

Abstract: PROBLEM TO BE SOLVED: To attain high speed operation or the like without requiring photoelectric conversion and optoelectronic conversion by allowing a controllable fiber diffraction grating to transmit or reflect an individual channel in a multi- wavelength optical signal so that a channel having prescribed wavelength and allowed to be selected is routed from either one of input ports of a switch to either one of output ports. SOLUTION: An optical router part 150 in an optical switch 100 includes directional optical transfer devices 101, 102 and distributes multiwavelength input signals I1, I2. An optical combiner part 151 includes directional optical transfer devices 103, 104, combines a multiwavelength optical signal and outputs output signals O1, O2. The devices 103, 104 are respectively connected to output optical fibers 108, 109 to supply the output signals O1, O2. These devices 101 to 104 can directionally transfer or combine optical energy.

公开(公告)号：JP2000244057A

公开(公告)日：2000-09-08

申请号：JP2000044325

申请日：2000-02-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  MAVOORI HAREESH

IPC: H01S5/183 ,  H01S5/02 ,  H01S5/14 ,  H04J14/02

Abstract: PROBLEM TO BE SOLVED: To provide a device comprising an adjustable laser structure which is useful for a surface emission laser and represents a desired latch capability. SOLUTION: The adjustable laser has a laser structure comprising a lower side reflector 16, active laser region 12, and upper side reflector 14. The upper side reflector comprising an immovable reflector part arranged to adjoin an active laser region and a movable reflector part arranged away from the immovable reflector part. A magnetic body is provided on the surface of the movable reflector part or anywhere on the surface contacting the movable reflector part, and programmable magnet induces a controlled movement of the magnetic body. The movement so induces the movement of the movable reflector part that an interval 20 between the movable reflector part and immovable reflector part is adjustable. The phase of reflection and laser output wavelength are controlled by adjusting the interval.

公开(公告)号：JP2000221339A

公开(公告)日：2000-08-11

申请号：JP2000016436

申请日：2000-01-26

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ADAMS LAURA ELLEN ,  EGGLETON BENJAMIN JOHN ,  ROLAND PATRICIO ESPINDRA ,  JIN SUNGHO ,  MAVOORI HAREESH ,  ROGERS JOHN A ,  STRASSER THOMAS ANDREW

IPC: G02B5/18 ,  G02B6/02 ,  G02B6/34 ,  G02B26/00 ,  G02F1/01 ,  H01S3/10 ,  H04B10/18 ,  G02B6/10

Abstract: PROBLEM TO BE SOLVED: To make it possible to produce a grating device having a wide band width, freely regulatable dispersibility and amplitude responsiveness by adding an extrinsic gradient to a waveguide and changing the range of the chirp in an intrinsic chirp type grating region. SOLUTION: The grating device 10 is manufactured by providing the device with the waveguide of a certain length like an optical fiber 11 having a grating region 12 in the waveguide. The grating region 12 has nonuniformly parted fluctuation parts and reflects the intrinsic chirp type grating. When the extrinsic gradient or force is impressed to the waveguide, the range of the chirp changes. First and second magnetic elements 15a and 15b attracts or repels to or from each other to introduce an elastic strain to the optical fiber 11 of the grating region. A gradient forming main body 14 is mounted on the optical fiber 11. As a result, the device which can include the grating of a certain range and the wide band width may be formed by using low temperature and weak force. The regulation of the dispersibility and amplitude responsiveness of the grating is possible as well.

公开(公告)号：JP2000098268A

公开(公告)日：2000-04-07

申请号：JP26975299

申请日：1999-09-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ADAMS LAURA ELLEN ,  ESPINDOLA ROLANDO PATRICIO ,  JIN SUNGHO ,  MAVOORI HAREESH ,  STRASSER THOMAS ANDREW

IPC: G02B26/00 ,  G02B6/34 ,  G02F1/01

Abstract: PROBLEM TO BE SOLVED: To obtain a device which is programmable for the purpose of a wavelength shift and dispersion correction of colors and may be latched by regulating the spacings between grating elements by the expansion or contraction of a body by a magnetic field and the consequently induced elastic strain and regulating the wavelength corresponse of the device. SOLUTION: This wavelength shift device includes a waveguide of a certain length, such as an optical fiber 11, having a grating region 12, the slender magnetostriction effect body 14 bonded along the length of the gratings 12 to the gratings in the bond region 13 and a source for exposing the body 14 to the magnetic field. A source for supplying the magnetic field, for example, a solenoid 19 is installed in proximity to the body 14 or a magnet 15 or both thereof to magnetize the magnet 15 and to distort the body 14. The body 14 is expanded or shrunk by the magnetic field, by which the elastic strain is induced in the body 14 and the spacings between the grating elements and the wavelength response of the device are regulated.

公开(公告)号：JP2000098146A

公开(公告)日：2000-04-07

申请号：JP26795399

申请日：1999-09-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  MAVOORI HAREESH

IPC: G02B6/02 ,  G02B5/18 ,  G02B6/34 ,  G02B26/00 ,  G02F1/01 ,  H04B10/02 ,  G02B6/10

Abstract: PROBLEM TO BE SOLVED: To make it possible to regulate a wavelength in such a manner that this wavelength can be latched by changing the intervals between grating elements and shifting the wavelength response of a device when a main body is moved from a first position to a second position. SOLUTION: The main body 14 can move substantially longitudinally along the longitudinal direction of a fiber. The main body 14 is placed adjacently to the fiber existing in a grid region 12. The fiber is mounted at the moving main body 14 at a point 13a and the fiber is mounted to a substrate 16 at a point 13b. The main body 14 is held in a cavity 17 of a supporting frame. The cavity 17 has two end walls 17a and 17b which act as barriers for the movement in the longitudinal direction of the main body 14. These walls are so formed that the shearing strains acting on the fiber grids can maintain two distinct states. These states may be regulated by changing the length of the cavity 17 and the distance between the barriers 17a and 17b.

公开(公告)号：CA2295264A1

公开(公告)日：2000-07-26

申请号：CA2295264

申请日：2000-01-10

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  MAVOORI HAREESH ,  STRASSER THOMAS ANDREW ,  ROGERS JOHN A ,  ADAMS LAURA ELLEN ,  EGGLETON BENJAMIN JOHN ,  ESPINDOLA ROLANDO PATRICIO

IPC: G02B5/18 ,  G02B6/02 ,  G02B6/34 ,  G02B26/00 ,  G02F1/01 ,  H01S3/10 ,  H04B10/18 ,  G02B6/124 ,  H04J14/02

Abstract: A method for making a chirped grating device capable of a broad bandwith for optical communication systems is disclosed. An intrinsically-chirped optical grating is externally strained to alter the range of chirping. The external strain may be induced by a gradient-generating body bonded onto the length of the fiber grating that may be latchably strained so that the grating characteristics may be changed or tuned while avoiding use of a continuous power supply. Various optical networking applications using such dispersion compensating devices are also disclosed.

公开(公告)号：DE69904130D1

公开(公告)日：2003-01-09

申请号：DE69904130

申请日：1999-09-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  MAVOORI HAREESH

IPC: G02B6/02 ,  G02B5/18 ,  G02B6/34 ,  G02B26/00 ,  G02F1/01 ,  H04B10/02 ,  G02B6/16

Abstract: A tunable optical grating device (10) that can be digitally and latchably tuned comprises a length of waveguide (11) including a grating region (12), and a movable body (14) and fixed substrate (16) attached to the waveguide proximal the grating region. The body is movable from a first position to at least a second position, and in some embodiments to a plurality of positions, along the length of the waveguide to apply a mechanical strain to the grating to shift the wavelength response of the device. The movable body is latchable between the various positions along the length of the waveguide to define a latchably tunable device so that a continuous supply of power is not needed to tune the device. The digitally and latchably tunable optical grating device is useful in WDM communication systems, particularly for adding or dropping channels and for dynamically gain-equalizing optical amplifiers.

公开(公告)号：CA2298168A1

公开(公告)日：2000-08-19

申请号：CA2298168

申请日：2000-02-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MAVOORI HAREESH ,  KNOX WAYNE HARVEY ,  FATEHI MOHAMMAD T ,  JIN SUNGHO

IPC: H04B10/02 ,  G02B6/293 ,  G02B6/34 ,  G02B6/35 ,  H04Q3/52 ,  H04Q11/00 ,  G02F1/313 ,  H04J14/02

Abstract: In accordance with the invention, an optical cross-connect switch includes an optical router for distributing multi-wavelength optical input signals, an optical combiner for supplying multi-wavelength signals at the output ports of the switch, and optical fibers for interconnecting the optical router and optical combiner. Selected interconnecting optical fibers include controllable wavelength-selective elements, such as magnetically controllable fiber gratings, which are capable of transmitting or reflecting individual channels within the multi-wavelength optical signals so that a selected channel of a particular wavelength can be routed from any of the input ports to any of the output ports of the switch.