公开(公告)号：JPH11118494A

公开(公告)日：1999-04-30

申请号：JP23789898

申请日：1998-07-22

Applicant: LITTON SYSTEMS INC

Inventor： STEELE JAMES R ,  CORDOVA AMADO ,  GOLDNER ERIC LEE

IPC: G01C19/72

Abstract: PROBLEM TO BE SOLVED: To stabilize the magnification of an optical fiber rotating sensor by arranging a depolarizer within an optical path between an optical coupler and an integrated optical chip, and depolarizing a light signal to prevent the change of polarized state in the propagation to an interferometer. SOLUTION: A multiple optical coupler (MUX) 34 imparts an output to an optical fiber 35. The optical fiber 35 guides the optical output from a Lyot depolarizer 36 to a multifunctional integrated optical chip 37. The integrated optical chip 37 comprises waveguides 38-40 forming a Y-coupler 42. The light inputted to a detecting coil 48 through a pigtail 33 forms a clockwise light wave within the detecting coil 48. The light inputted from the pigtail 46 to the detecting coil 48 forms a counterclockwise light wave. The clockwise and counterclockwise light waves form an interference pattern within the detecting coil 48. A magnification error is caused by the change of polarized state of light and the succeeding polarization by the filter action in the integrated optical chip 37. By inserting the depolarizer 25, the polarized state of light is stabilized, and the magnification error is eliminated.

公开(公告)号：JP2000055673A

公开(公告)日：2000-02-25

申请号：JP21807799

申请日：1999-07-30

Applicant: LITTON SYSTEMS INC

Inventor： GOLDNER ERIC LEE ,  MCLEAN THOMAS ,  AMAD KORDOVA ,  BEAN KENNETH ,  LANG ARTHUR D

IPC: G01C19/72

Abstract: PROBLEM TO BE SOLVED: To steadily operate an optical fiber gyro under various environmental conditions by mounting a pair of leads consisting of optical fibers on a detection coil by a specified method using an adhesive having a low elastic coefficient. SOLUTION: Leads 100a, 100b consisting of a pair of optical fibers different in length are arranged on the circumference 108 of a detection coil 102 so as to extend in different directions, and the long lead 100a is bent after extended along the circumference 108 and extended in the same direction as the short lead 100b. An adhesive material having a low elastic coefficient, for example, less than about 500 psi, is applied and hardened by UV irradiation to initially adhere the leads 100a, 100b to the coil 102, and the leads are wound adjacently around the circumference 108 in the same circumferential direction. Thereafter, the same adhesive material is applied to the whole outer surface 118 of the wound leads and hardened. The stress can be dispersed by the use of the adhesive material having low elastic coefficient, and the removal of the leads is also facilitated.

公开(公告)号：JPH11145534A

公开(公告)日：1999-05-28

申请号：JP30160697

申请日：1997-11-04

Applicant: LITTON SYSTEMS INC

Inventor： JAMES ROSS STEELE ,  GOLDNER ERIC LEE ,  RONALD JAMES MICHAEL ,  FIDRIC BERNARD G ,  PATTERSON RALPH A

IPC: G01C19/72 ,  G02B6/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/083 ,  H01S3/0933 ,  H01S3/23 ,  H01S5/068 ,  H01S5/0683

Abstract: PROBLEM TO BE SOLVED: To obtain a fiber laser of superfluorescent wideband by a method, wherein an optical output of an edge-emission type light-emitting diode is amplified by an optical fiber amplifier and used as a light source for a fiber gyro. SOLUTION: An electric source 11 serving as a power supply supplies power to an optical amplifier 12 and a current source 13. The current source 13 sends a drive current or a bias current to the input port 20 of the light amplifier 12 from a wideband light source such as an emission-type light-emitting diode 15, so as to control the intensity of output light signals. The emission-type light-emitting diode 15 is actuated by a bias current of 50 to 80 Ma to generate an average power of 30 to 60 Uw in terms of power spectrum density, having a smooth wideband distribution. The optical amplifier 12 which is used to amplify output light signals 14 is used in combination to enable its output port 18 to output sufficient power. The gain of an optical amplifier is nearly flat on a problematic bandwidth, and a light signal 16 which is power-boosted can be outputted from the output port 18.

公开(公告)号：WO0180463A3

公开(公告)日：2003-03-27

申请号：PCT/US0112415

申请日：2001-04-17

Applicant: LITTON SYSTEMS INC

Inventor： BEAN MICHAEL ,  BEAN LAWRENCE E ,  PAVLATH GEORGE A ,  GOLDNER ERIC LEE

IPC: H04B10/12 ,  H04B10/145 ,  H04K1/00

CPC classification number: H04B10/85

Abstract: The present invention relates generally to an integrated optics encryption device. The preferred embodiment of the invention is an integrated optics encryption device comprising a coherent light source connected to a multi-functional integrated optics chip (MIOC). The MIOC comprises two divergent paths with mirrored ends. The MIOC also has an encrypted message output. One path is connected to a message signal input that can alter the refractive index of the path. The other path is connected to a key signal input that can alter the refractive index of the other path.

Abstract translation: 本发明一般涉及一种集成光学加密装置。 本发明的优选实施例是包括连接到多功能集成光学芯片（MIOC）的相干光源的集成光学加密装置。 MIOC包括两条具有镜像端点的发散路径。 MIOC还具有加密的消息输出。 一条路径连接到可改变路径的折射率的消息信号输入。 另一个路径连接到可以改变另一路径的折射率的键信号输入。

公开(公告)号：WO0153820A8

公开(公告)日：2002-01-31

申请号：PCT/US0101975

申请日：2001-01-22

Applicant: LITTON SYSTEMS INC

Inventor： GOLDNER ERIC LEE ,  SALINAS JOSEPH SCOTT

IPC: G10K11/00 ,  G01N29/00

CPC classification number: G10K11/004

Abstract: The design and method of fabrication for an acoustic sensor module (10) for mounting on the hull of a submarine or surface ship is disclosed. The design involves the use of molded alignment structures (140) to position the acoustic sensors (20) within a two part shell (40) prior to the two part shell (40) being filled with an acoustic medium (30) used to encapsulate the acoustic sensors (20). The disclosed design and fabrication method reduce tooling requirements and eliminate a significant amount of assembly labor in fabricating hull mounted sonar arrays.

Abstract translation: 公开了用于安装在潜艇或水面船的船体上的声传感器模块（10）的制造设计和制造方法。 该设计涉及使用模制对准结构（140）将声学传感器（20）定位在两部分壳体（40）内，在两部分壳体（40）填充有用于封装 声传感器（20）。 所公开的设计和制造方法减少了加工需求并消除了在制造船体安装的声纳阵列方面的大量组装工作。

公开(公告)号：NO20023512A

公开(公告)日：2002-09-23

申请号：NO20023512

申请日：2002-07-23

Applicant: LITTON SYSTEMS INC

Inventor： GOLDNER ERIC LEE ,  SALINAS JOSEPH SCOTT

IPC: G10K11/00 ,  G01N

CPC classification number: G10K11/004

公开(公告)号：AU6103001A

公开(公告)日：2001-10-30

申请号：AU6103001

申请日：2001-04-17

Applicant: LITTON SYSTEMS INC

Inventor： BEAN MICHAEL ,  BEAN LAWRENCE E ,  PAVLATH GEORGE A ,  GOLDNER ERIC LEE

IPC: H04B10/12 ,  H04B10/145

Abstract: The present invention relates generally to an integrated optics encryption device. The preferred embodiment of the invention is an integrated optics encryption device comprising a coherent light source connected to a multi-functional integrated optics chip (MIOC). The MIOC comprises two divergent paths with mirrored ends. The MIOC also has an encrypted message output. One path is connected to a message signal input that can alter the refractive index of the path. The other path is connected to a key signal input that can alter the refractive index of the other path.

公开(公告)号：CA2397648A1

公开(公告)日：2001-07-26

申请号：CA2397648

申请日：2001-01-22

Applicant: LITTON SYSTEMS INC

Inventor： GOLDNER ERIC LEE ,  SALINAS JOSEPH SCOTT

IPC: G10K11/00 ,  G01N29/00

Abstract: The design and method of fabrication for an acoustic sensor module (10) for mounting on the hull of a submarine or surface ship is disclosed. The design involves the use of molded alignment structures (140) to position the acoust ic sensors (20) within a two part shell (40) prior to the two part shell (40) being filled with an acoustic medium (30) used to encapsulate the acoustic sensors (20). The disclosed design and fabrication method reduce tooling requirements and eliminate a significant amount of assembly labor in fabricating hull mounted sonar arrays.

公开(公告)号：NO20013609D0

公开(公告)日：2001-07-20

申请号：NO20013609

申请日：2001-07-20

Applicant: LITTON SYSTEMS INC

Inventor： GOLDNER ERIC LEE ,  TWEEDY MICHAEL J ,  FERSHT SAMUEL N ,  HALL DAVID B

IPC: G01H20060101 ,  G01H9/00 ,  H04R1/46 ,  G01H

公开(公告)号：CA2240086A1

公开(公告)日：1999-01-23

申请号：CA2240086

申请日：1998-06-08

Applicant: LITTON SYSTEMS INC

Inventor： GOLDNER ERIC LEE ,  CORDOVA AMADO ,  STEELE JAMES R

IPC: G01C19/72

Abstract: A fiber optic rotation sensor system having improved scale factor stability includes an optically pumped gain fiber arranged to provide optical signals to an integrated optics chip connected to a fiber optic sensing coil. An optical coupler receives optical signals from the gain fiber and provides the optical signals to an optical fiber. The optical fiber is arranged to guide opti cal signals from the optical coupler along an optical path toward the integrated optics chip such that optical signals from the gain fiber are input to the fiber optic sensing coil to form counter-propagating waves therein. The counter-propag ating waves traverse the sensing coil and then combine in the integrated optics chip to form a gyro output signal. A depolarizer is placed in the optical path between the first optical coupler and the integrated optics chip to prevent random changes in the state of polarization of optical signals propagating between the gain fiber and the integrated optic chip.