公开(公告)号：US06680472B1

公开(公告)日：2004-01-20

申请号：US10070735

申请日：2002-03-12

Applicant: Dag Thingbø ,  Jon Thomas Kringlebotn

Inventor： Dag Thingbø ,  Jon Thomas Kringlebotn

IPC: G01J508

CPC classification number: G01J9/00

Abstract: Fibre optic apparatus for accurate and repeatable measurements of light comprising one or more wavelength ranges, and system employing the apparatus. The apparatus according to the invention comprises: a directional coupler adapted to lead the light into an optical fibre, said optical fibre containing at least one analysis filter for each wavelength range, said analysis filters consisting of at least one fibre-optical Bragg-grating (FBG) which reflects incident light with a chosen wavelength back through said directional coupler and onto a detector having an associated signal processing unit, a modulator device for pulsing the incident light with a chosen pulse width, and an optical fibre delay line in front of each analysis filter, with a length adapted to provide for a sufficient time delay larger than the pulse width, so that the pulses reflected from each analysis filter at different wavelengths can be separated in time and thereby be demodulated in the signal processing unit.

Abstract translation: 用于对包括一个或多个波长范围的光进行精确和可重复测量的光纤设备，以及采用该设备的系统。 根据本发明的装置包括：适于将光引入光纤的定向耦合器，所述光纤包含用于每个波长范围的至少一个分析滤波器，所述分析滤波器由至少一个光纤布拉格光栅（ FBG），其将选择的波长的入射光反射回所述定向耦合器并且到具有相关联的信号处理单元的检测器上，用于以选定的脉冲宽度脉冲入射光的调制器装置，以及每个前面的光纤延迟线 分析滤波器，其长度适于提供大于脉冲宽度的足够的时间延迟，使得从不同波长的每个分析滤波器反射的脉冲可以在时间上分离，从而在信号处理单元中被解调。

公开(公告)号：US5771251A

公开(公告)日：1998-06-23

申请号：US737181

申请日：1997-03-20

Applicant: Jon Thomas Kringlebotn ,  David Neil Payne ,  Laurence Reekie ,  Jean Luc Archambault

Inventor： Jon Thomas Kringlebotn ,  David Neil Payne ,  Laurence Reekie ,  Jean Luc Archambault

IPC: H01S3/063 ,  H01S3/067 ,  H01S3/1055 ,  H01S3/16 ,  H01S3/30 ,  G02B6/34

CPC classification number: H01S3/0675 ,  H01S3/0635 ,  H01S3/1055 ,  H01S3/1608 ,  H01S3/1618

Abstract: An optical fibre distributed feedback laser comprises an amplifying optical fibre (50) operable to provide optical gain at a lasing wavelength, in which a diffraction grating (30) is disposed on at least a portion of the amplifying optical fibre to provide distributed optical feedback for sustaining lasing action at the lasing wavelength.

Abstract translation: PCT No.PCT / GB95 / 01026 Sec。 371日期1997年3月20日 102（e）1997年3月20日PCT PCT 1995年5月5日PCT公布。 出版物WO95 / 31020 日期：1995年11月16日光纤分布反馈激光器包括可操作以在激光波长下提供光学增益的放大光纤（50），其中衍射光栅（30）设置在放大光纤的至少一部分上， 提供分布式光学反馈，以保持激光波长的激光作用。

公开(公告)号：US09042202B2

公开(公告)日：2015-05-26

申请号：US12482221

申请日：2009-06-10

Applicant: Arne Berg ,  Jon Thomas Kringlebotn

Inventor： Arne Berg ,  Jon Thomas Kringlebotn

IPC: G01V1/38 ,  G01V13/00 ,  G01P15/093 ,  G01V1/20

CPC classification number: G01V13/00 ,  G01P15/093 ,  G01V1/201 ,  Y10T29/49826

Abstract: There is provided a solid seismic streamer cable for use in seismic surveying in marine environments. The streamer is characterized by a buffer layer 2 which is provided with a cut-out 50 and a sensor element arranged in the cut-out 50. There is also provided an associated hydrophone for integration into the seismic streamer cable. The hydrophone is characteristic in a split-element sensor base 10, 11 being suited for efficient mounting into the cut-outs 50 of the seismic cable. There is also provided an associated accelerometer for integration into the seismic streamer cable. The accelerometer is characteristic by a split-element sensor base 30, 35 for being efficiently arranged into the cut-outs 50 of the seismic cable. A method of producing a seismic streamer cable according to the invention incorporating a hydrophone or accelerometer according to the invention is also provided.

Abstract translation: 提供了一种用于海洋环境中的地震测量的坚实的地震拖缆。 拖缆的特征在于缓冲层2，其设置有切口50和布置在切口50中的传感器元件。还提供了用于集成到地震拖缆电缆中的相关联的水听器。 水听器在分体元件传感器基座10,11中是特征，适合于有效地安装到地震电缆的切口50中。 还提供了一种用于集成到地震拖缆中的相关加速度计。 加速度计的特征在于分离元件传感器基座30,35，用于有效地布置在地震电缆的切口50中。 还提供了根据本发明的制造包括水​​听器或加速度计的地震拖缆的方法。

公开(公告)号：US07268884B2

公开(公告)日：2007-09-11

申请号：US10745291

申请日：2003-12-23

Applicant: Jon Thomas Kringlebotn ,  Hilde Nakstad ,  Dag Thingbo

Inventor： Jon Thomas Kringlebotn ,  Hilde Nakstad ,  Dag Thingbo

IPC: G01B9/02

CPC classification number: G01J3/28 ,  G01J3/1895

Abstract: Devices and methods of accurately determining optical wavelengths, such as the Bragg wavelengths of an FBG sensor array. Wavelength-swept light having a characteristic spectrum is swept over a bandwidth and is applied to an interference filter. The interference filter produces an optical spectrum having one or more reference peaks that are identifiable because of the characteristic spectrum. The optical spectrum is converted into electrical signals having at least one electrical signal that is identifiable because of the characteristic spectrum. The identifiable electrical signal is used by a signal processor as an absolute, high accuracy wavelength reference. Temperature compensation or temperature stabilization can compensate the characteristic wavelength. Fiber Bragg sensor systems can use the wavelength reference to determine the Bragg wavelength of FBG elements. The characteristic spectrum can be imparted by the light source or an optical element such as a transmission line filter.

Abstract translation: 准确地确定光波长的装置和方法，例如FBG传感器阵列的布拉格波长。 具有特征频谱的波长扫描光被扫过带宽并施加到干涉滤波器。 干涉滤波器产生具有一个或多个由于特征谱可识别的参考峰的光谱。 光谱被转换成具有至少一个电信号的电信号，由于特征谱可以识别。 可识别的电信号被信号处理器用作绝对的高精度波长参考。 温度补偿或温度稳定可以补偿特征波长。 光纤布拉格传感器系统可以使用波长参考来确定FBG元件的布拉格波长。 特征谱可以由光源或诸如传输线滤波器的光学元件赋予。

公开(公告)号：US06788418B1

公开(公告)日：2004-09-07

申请号：US09926727

申请日：2002-01-23

Applicant: Jon Thomas Kringlebotn

Inventor： Jon Thomas Kringlebotn

IPC: G01B902

CPC classification number: G01M11/3181 ,  G01D5/35316 ,  G01D5/35387

Abstract: A method for measurements of the orthogonally polarized minimum and maximum Bragg wavelengths of one of several birefringent fiber Bragg grate FBG sensors, and alternatively a method for eliminating errors in FBG sensor measurements caused by undesired grating birefringence, using an FBG wavelength interrogation apparatus, where the light from a polarized wavelength swept narrowband source (1) is passed through an electrically controllable polarization controller (2), operated in either a scanning mode or a tracking mode to find the two orthogonally polarized reflection spectra of the birefringent FBGs (6) with corresponding minimum and maximum Bragg wavelength &ggr;nx and &ggr;nx, where a low-birefringent reference FBG with known wavelength (5) and a low-birefringent fixed Fabry-Perod interferometer (8), generating frequency equidistant peaks are used in combination to provide accurate and readable wavelength measurements.

Abstract translation: 用于测量几个双折射光纤布拉格格栅FBG传感器之一的正交极化最小和最大布拉格波长的方法，或者替代地，使用FBG波长询问装置消除由不期望的光栅双折射引起的FBG传感器测量中的误差的方法，其中 来自偏振波长扫描窄带源（1）的光通过电可控偏振控制器（2），以扫描模式或跟踪模式操作，以找到双折射FBG（6）的两个正交偏振反射光谱，其中相应 最小和最大布拉格波长gammanx和gammanx，其中组合使用具有已知波长（5）的低双折射参考FBG和低双折射固定法布里 - 珀罗干涉仪（8），以产生准确和可读的波长 测量。

公开(公告)号：US06693923B2

公开(公告)日：2004-02-17

申请号：US09991881

申请日：2001-11-26

Applicant: Jon Thomas Kringlebotn ,  Sigurd Weidemann Løvseth

Inventor： Jon Thomas Kringlebotn ,  Sigurd Weidemann Løvseth

IPC: H01S3067

CPC classification number: H01S3/0675 ,  H01S3/1055 ,  H01S3/1603 ,  H01S3/2383

Abstract: A Bragg Grating optical waveguide laser source comprising at least one Bragg grating in a rare earth doped waveguide and an optical pump source coupled to said doped waveguide, said Bragg gratings having at least two different peak reflection wavelengths and at least one of said Bragg gratings comprising a phase-shift and a phase-shift actuator being coupled to the phase-shift for controlled application of changes in the phase-shift thus activating or deactivating the corresponding Bragg grating waveguide laser.

Abstract translation: 一种布拉格光栅光波导激光源，包括稀土掺杂波导中的至少一个布拉格光栅和耦合到所述掺杂波导的光泵浦源，所述布拉格光栅具有至少两个不同的峰值反射波长，并且所述布拉格光栅中的至少一个包括 相移和相移致动器耦合到相移，用于受控地施加相移的变化，从而激活或去激活相应的布拉格光栅波导激光器。

公开(公告)号：US6097487A

公开(公告)日：2000-08-01

申请号：US341708

申请日：1999-07-29

Applicant: Jon Thomas Kringlebotn ,  Dag Thingbo ,  Hilde Nakstad

Inventor： Jon Thomas Kringlebotn ,  Dag Thingbo ,  Hilde Nakstad

IPC: G01J3/32 ,  G01J3/28 ,  G01J9/02 ,  G01B9/02

CPC classification number: G01J9/0246

Abstract: A device for accurate and repeatable measurements of optical wavelengths, including an interrogation broadband light source (1) and a tuneable optical filter (2). A first part of the light is, in either order, transmitted through the filter (2) and reflected from, or transmitted through, at least one fibre Bragg grating (5) with known Bragg wavelength, providing an absolute wavelength reference, and directed to a first detector (7). A second part of the light is, in either order, transmitted through the filter and transmitted through, or reflected from a Fabry-Perot filter (8) with fixed and known free spectral range, creating a comb spectrum sampling the interrogation source spectrum to provide an accurate frequency/wavelength scale.

Abstract translation: PCT No.PCT / NO98 / 00031 Sec。 371日期1999年7月29日第 102（e）日期1999年7月29日PCT提交1998年1月29日PCT公布。 公开号WO98 / 36252 日期1998年8月20日一种用于光学波长的精确和可重复测量的装置，包括询问宽带光源（1）和可调谐光学滤波器（2）。 光的第一部分以任何顺序通过滤光器（2）透射并通过具有已知布拉格波长的至少一个光纤布拉格光栅（5）反射或透射，提供绝对波长参考，并且指向 第一检测器（7）。 光的第二部分以任何顺序通过滤波器传输并通过固定和已知的自由光谱范围传输或从法布里 - 珀罗滤光片（8）反射，从而产生梳状光谱采样询问源光谱，以提供 准确的频率/波长标度。