公开(公告)号：USRE35962E

公开(公告)日：1998-11-17

申请号：US693689

申请日：1996-08-05

申请人： Gary A. Ball ,  William H. Glenn

发明人： Gary A. Ball ,  William H. Glenn

IPC分类号： H01S3/067 ,  H01S3/08 ,  H01S3/23 ,  H01S3/30

CPC分类号： H01S3/0675 ,  H01S3/06737 ,  H01S3/08031 ,  H01S3/094007 ,  H01S3/094019 ,  H01S3/2383

摘要： An optical waveguide laser arrangement includes a solid optical waveguide having a waveguiding portion that extends along an axis between two spaced regions of the optical waveguide and is of a material capable of emitting stimulated light upon excitation by pumping light that is launched into the optical waveguide for axial propagation through the axially spaced regions of the optical waveguide. Two reflectors are provided, each being disposed at one of the axially spaced regions of the optical waveguide to delimit a laser resonator. At least one of the reflectors is constituted by a Bragg grating consisting of a multitude of axially consecutive periodic perturbations in the refractive index of the respective one of the axially spaced regions that cumulatively reflect the stimulated light at a reflectivity that decreases for adjacent longitudinal modes of the stimulated light with increasing deviation from a central wavelength. The axial length of the laser resonator, the reflectivity of the Bragg grating and the gain of the excitable material are so coordinated with one another as to sustain lasing in only a single longitudinal mode.

摘要翻译： 光波导激光器配置包括具有波导部分的固体光波导，该波导部分沿着光波导的两个间隔区域之间的轴线延伸，并且是能够通过泵送发射到光波导中的光而激发时发射受激光的材料 通过光波导的轴向间隔的区域的轴向传播。 提供两个反射器，每个反射器设置在光波导的轴向间隔开的一个区域中，以限定激光谐振器。 反射器中的至少一个由布拉格光栅构成，布拉格光栅由轴向间隔开的相应一个区域的折射率中的多个轴向连续的周期性扰动组成，其累积地以相对于纵向模式的相对纵向模式减小的反射率反射受激光 受激光随着偏离中心波长而增加。 激光谐振器的轴向长度，布拉格光栅的反射率和可激发材料的增益是如此协调的，以便在单一纵向模式下维持激光。

公开(公告)号：US5305335A

公开(公告)日：1994-04-19

申请号：US17069

申请日：1993-02-12

申请人： Gary A. Ball ,  William H. Glenn

发明人： Gary A. Ball ,  William H. Glenn

IPC分类号： H01S3/067 ,  H01S3/07 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/23 ,  H01S3/30

CPC分类号： H01S3/09415 ,  H01S3/067 ,  H01S3/0675 ,  H01S3/06737 ,  H01S3/07 ,  H01S3/08031 ,  H01S3/08086 ,  H01S3/094007 ,  H01S3/094019 ,  H01S3/094038

摘要： An optical waveguide laser arrangement includes a solid optical waveguide having a waveguiding portion that extends along an axis between two spaced regions of the optical waveguide and is of a material capable of emitting stimulated light upon excitation by pumping light that is launched into the optical waveguide for axial propagation through the axially spaced regions of the optical waveguide. Two reflectors are provided, each being disposed at one of the axially spaced regions of the optical waveguide to delimit a laser resonator. At least one of the reflectors is constituted by a Bragg grating consisting of a multitude of axially consecutive periodic perturbations in the refractive index of the respective one of the axially spaced regions that cumulatively reflect the stimulated light at a reflectivity that decreases for adjacent longitudinal modes of the stimulated light with increasing deviation from a central wavelength. The axial length of the laser resonator, the reflectivity of the Bragg grating and the gain of the excitable material are so coordinated with one another as to sustain lasing in only a single longitudinal mode.

摘要翻译： 光波导激光器配置包括具有波导部分的固体光波导，该波导部分沿着光波导的两个间隔区域之间的轴线延伸，并且是能够通过泵送发射到光波导中的光而激发时发射受激光的材料 通过光波导的轴向间隔的区域的轴向传播。 提供两个反射器，每个反射器设置在光波导的轴向间隔开的一个区域中，以限定激光谐振器。 反射器中的至少一个由布拉格光栅构成，布拉格光栅由轴向间隔开的相应一个区域的折射率中的多个轴向连续的周期性扰动组成，其累积地以相对于纵向模式的相对纵向模式减小的反射率反射受激光 受激光随着偏离中心波长而增加。 激光谐振器的轴向长度，布拉格光栅的反射率和可激发材料的增益是如此协调的，以便在单一纵向模式下维持激光。

公开(公告)号：US5666372A

公开(公告)日：1997-09-09

申请号：US13490

申请日：1993-02-01

申请人： Gary A. Ball ,  William H. Glenn

发明人： Gary A. Ball ,  William H. Glenn

IPC分类号： H01S3/067 ,  H01S3/07 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/23 ,  H01S3/30

CPC分类号： H01S3/09415 ,  H01S3/067 ,  H01S3/0675 ,  H01S3/06737 ,  H01S3/07 ,  H01S3/08031 ,  H01S3/08086 ,  H01S3/094007 ,  H01S3/094019 ,  H01S3/094038 ,  H01S3/23 ,  H01S3/2383

摘要： An emedded Bragg grating laser Master-Oscillator and Power-Amplifier (MOPA), includes an optical waveguide which receives and propagates pump light of a predetermined wavelength launched into the optical waveguide; a first master oscillator laser, disposed in the waveguide in the path of the pump light, the laser having a laser cavity disposed between a first pair of reflectors and having a first laser gain medium within the first laser cavity which emits first lasing light in response to the pump light, the first reflectors reflecting a predetermined amount of the first lasing light within the first laser cavity and passing a predetermined amount of the first fusing light as first output laser light from the first laser, the first reflectors passing the pump light through the first laser; at least one of the first reflectors comprises a Bragg grating; and an optical waveguide power amplifier, disposed in the path of the first output laser light and the pump light, and having a first amplifier gain medium therein which emits first amplified laser light in response to the pump light and the first output laser light.

摘要翻译： 一种嵌入式布拉格光栅激光器主振荡器和功率放大器（MOPA），包括：接收并传播发射到光波导中的预定波长的泵浦光的光波导; 第一主振荡器激光器，设置在泵浦光路径中的波导中，激光器具有设置在第一对反射器之间的激光腔，并且在第一激光腔内具有第一激光增益介质，该第一激光增益介质响应于发射第一激光 所述第一反射器反射预定量的所述第一激光腔内的所述第一激光，并且将来自所述第一激光的第一输出激光的预定量的所述第一熔合光通过，所述第一反射器将所述泵浦光通过 第一激光; 所述第一反射器中的至少一个包括布拉格光栅; 以及设置在第一输出激光和泵浦光的路径中的光波导功率放大器，并且其中具有响应于泵浦光和第一输出激光而发射第一放大激光的第一放大器增益介质。

公开(公告)号：US5317576A

公开(公告)日：1994-05-31

申请号：US13117

申请日：1993-02-01

申请人： Frederick Leonberger ,  William H. Glenn ,  Gary A. Ball

发明人： Frederick Leonberger ,  William H. Glenn ,  Gary A. Ball

IPC分类号： H01S3/067 ,  H01S3/07 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/23 ,  H01S3/30

CPC分类号： H01S3/067 ,  H01S3/0675 ,  H01S3/09415 ,  H01S3/06737 ,  H01S3/07 ,  H01S3/08031 ,  H01S3/08086 ,  H01S3/094007 ,  H01S3/094019 ,  H01S3/094038 ,  H01S3/23 ,  H01S3/2383

摘要： A tunable optical waveguide laser arrangement includes a solid optical waveguide capable of guiding light along an axis between axially spaced ends thereof and being at least in part of an excitable material that emits light in response to stimulation by light. Stimulating light is launched into the waveguide for axial propagation therein and attendant emission of light by the excitable material. Two end reflectors are situated in the waveguide, each at one of the axially spaced ends thereof and extending normal to the axis to delimit a laser cavity. Each of the reflectors is constituted by a Bragg grating consisting of a multitude of axially consecutive grating elements constituted by periodic refractive index perturbations with a given periodicity. The length of the cavity, the peak reflectivity of the Bragg gratings and the gain of the excitable material are so coordinated with one another as to enable lasing in only a single longitudinal mode. The length of that portion of the optical waveguide that incorporates the two Bragg gratings and an intervening region of the optical waveguide is uniformly controlledly varied with attendant continuous tuning of the laser output wavelength without longitudinal mode hopping.

摘要翻译： 可调谐光波导激光器布置包括固体光波导，其能够沿着轴的轴向间隔开的端部引导光，并且至少部分地是响应于光的刺激而发光的可激发材料。 刺激光被发射到波导中以在其中轴向传播并伴随着可兴奋材料的光发射。 两个端部反射器位于波导中，每个在其轴向间隔开的一个端部处并且垂直于轴线延伸以限定激光腔。 每个反射器由布拉格光栅构成，布拉格光栅由具有给定周期的周期性折射率扰动构成的多个轴向连续的光栅元件组成。 腔的长度，布拉格光栅的峰值反射率和可激发材料的增益彼此协调，以使得仅在单个纵向模式下实现激光。 结合两个布拉格光栅的光波导的该部分的长度和光波导的中间区域的均匀控制地随着激光输出波长的连续调谐而不进行纵向模式跳变。

公开(公告)号：US6151157A

公开(公告)日：2000-11-21

申请号：US884747

申请日：1997-06-30

申请人： Gary A. Ball ,  Paul Sanders

发明人： Gary A. Ball ,  Paul Sanders

IPC分类号： H01S3/10 ,  H04B10/17 ,  H01S3/00

CPC分类号： H04B10/2941 ,  H01S3/10023 ,  H01S3/1003

摘要： An optical amplifier for amplifying a plurality of signal components of a multi-wavelength optical beam passing through an optical fiber includes a portion of the optical fiber doped with a rare earth ion to amplify the optical signal wherein the gain spectrum as a function of the wavelength is nonuniform. The optical amplifier further includes a gain flattening module to compensate for the nonuniform gain spectrum of the doped fiber by attenuating each of the channels of the amplified signal to equalize the gain. A gain equalization module compensates for varying gain fluctuations due to the adding and subtracting of signal components. The gain equalization module adjusts dynamically each signal component of the optical beam such that the amplitudes of the signal components are substantially equal, in response to a plurality of control signals. Each control signal is representative of the degree of attenuation required to equalize the signal components. The respective control signals are generated by a loop status monitor that includes a waveguide for demultiplexing the optical beam, and a detector array that determines the amplitude of each signal component. A controller generates the control signals in dependence of the amplitude of the signal components.

摘要翻译： 用于放大通过光纤的多波长光束的多个信号分量的光放大器包括掺杂有稀土离子的光纤的一部分以放大光信号，其中增益光谱作为波长的函数 是不均匀的。 光放大器还包括增益平坦化模块，通过衰减放大信号的每个通道以补偿增益来补偿掺杂光纤的不均匀增益谱。 增益均衡模块补偿由于信号分量的相加和减去引起的变化的增益波动。 增益均衡模块动态地调整光束的每个信号分量，使得响应于多个控制信号，信号分量的振幅基本相等。 每个控制信号代表均衡信号分量所需的衰减程度。 相应的控制信号由包括用于解复用光束的波导的环路状态监视器以及确定每个信号分量的振幅的检测器阵列产生。 控制器根据信号分量的振幅产生控制信号。

公开(公告)号：US5657406A

公开(公告)日：1997-08-12

申请号：US311333

申请日：1994-09-23

申请人： Gary A. Ball

发明人： Gary A. Ball

IPC分类号： G02B6/293 ,  G02B6/34 ,  H04B10/02 ,  H04J14/02 ,  H04Q11/00 ,  G02B6/28

CPC分类号： G02B6/2932 ,  G02B6/2938 ,  H04J14/0206 ,  H04J14/0213 ,  H04J14/0219 ,  H04Q11/0003 ,  H04J14/0209 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0022 ,  H04Q2011/0026

摘要： An efficient wavelength multiplexer/demultiplexer includes a plurality of 2.times.2 optical couplers 122,180,200,220, each having a pair of matched gratings 130,142; 182,184; 202,204; and 222,224, having bandpass wavelengths .lambda..sub.1, .lambda..sub.2, .lambda..sub.3, .lambda..sub.4, respectively, attached to two of the ports. An input signal 116 enters a port 120 and is split and reflected off the gratings 130,142 and then recombined so as to provide all the input signal 116 at an output port 150 and no reflection out of the port 120. Another input signal 154 is incident on the grating 142 which is passed by the grating 142 and is coupled onto the output port 150 with the signal 116 as a signal 160. A similar arrangement exists for the other couplers 180,200,220 connected in series, each of which adds another input wavelength. Alternatively, in a de-multiplexing application the signal 116 may be broadband and the signals 154,190,206,230 would be separate output wavelengths.

摘要翻译： 有效的波长多路复用器/解复用器包括多个2x2光耦合器122,180,200,220，每个具有一对匹配的光栅130,142; 182,184; 202,204; 和222,224，分别具有连接到两个端口的带通波长λ1，λ2，λ3，λ4。 输入信号116进入端口120，并被分离并从光栅130,142反射，然后再结合，以便在输出端口150处提供所有输入信号116，并且没有反射出端口120.另一输入信号154入射到 栅格142由光栅142通过并且被信号116耦合到输出端口150上作为信号160.对于串联连接的其它耦合器180,200,220，其中每一个耦合器180,200,220都增加了另一个输入波长。 或者，在解复用应用中，信号116可以是宽带的，并且信号154,190,206,230将是分离的输出波长。

公开(公告)号：US5915052A

公开(公告)日：1999-06-22

申请号：US885427

申请日：1997-06-30

申请人： Gary A. Ball

发明人： Gary A. Ball

IPC分类号： H04B10/08 ,  H04B10/18 ,  H04J14/02 ,  G02B6/28

CPC分类号： H04B10/25073 ,  H04B10/077 ,  H04B10/07955 ,  H04J14/0221 ,  H04B2210/003

摘要： A loop status monitor for determining the magnitude of the power output of each signal component of a multi-wavelength optical beam includes a dense wavelength division demultiplexing arrayed waveguide and a detector array. The detector elements are butt-coupled to each respective output of the waveguide to reduce insertion loss and cost. The detector array is formed of planar silica material having a plurality of precision ion implanted regions that separate the optical beam into its respective signal components. The signal components are directed to a corresponding detector element of the detector array. Each detector element includes a photodiode that converts the optical beam to an electrical signal indicative of the amplitude of the power of the channel.

摘要翻译： 用于确定多波长光束的每个信号分量的功率输出的幅度的回路状态监视器包括密集波分解复用阵列波导和检测器阵列。 检测器元件对接到波导的每个相应输出端以减少插入损耗和成本。 检测器阵列由平面二氧化硅材料形成，其具有将光束分离成其各自的信号分量的多个精密离子注入区域。 信号分量被引导到检测器阵列的相应检测器元件。 每个检测器元件包括光电二极管，其将光束转换成指示通道的功率幅度的电信号。

公开(公告)号：US5564832A

公开(公告)日：1996-10-15

申请号：US475124

申请日：1995-06-07

申请人： Gary A. Ball ,  Gerald Meltz

发明人： Gary A. Ball ,  Gerald Meltz

IPC分类号： G01K11/12 ,  G01B11/16 ,  G01D5/353 ,  G01D21/00 ,  G01M11/00 ,  G01N21/21 ,  G01N21/23 ,  G01N21/41 ,  H01S3/067 ,  G01K11/00 ,  G01L1/24

CPC分类号： G01D5/35383 ,  G01J3/1895 ,  H01S3/0675

摘要： A birefringent active fiber laser sensor includes one or more fiber lasers 12, 14, 16, each having a pair of Bragg gratings 18, 20, embedded in a fiber 10 and excited by a common pump light 30. At least one of the lasers 12, 14, 16 has a laser cavity wit a predetermined birefrigence and a lasing light at a first lasing frequency along a first polarization axis, and at a second fusing frequency along a second polarization axis. A difference frequency between the first and the second lasing frequencies is related to the magnitude of the birefringence, and the birefringence varies in response to a perturbation. Output light 104 from each of the lasers 12,14,16 is fed to a defraction grating 106 which splits the beam 104 into different wavelength groups, each group having the two lasing frequencies and polarizations of a given laser. Each wavelength group is fed to a corresponding analyzer 122-126 which combines the first and second frequencies and polarizations for each laser to form a lower difference or "beat" frequency, thereby allowing lower frequency detection devices 138-142 to be used.

摘要翻译： 双折射有源光纤激光传感器包括一个或多个光纤激光器12,14,16，每个光纤激光器12,14,16都具有嵌入在光纤10中并由公共泵浦光30激发的一对布拉格光栅18,20。至少一个激光器12 ，14,16具有具有预定双折射率的激光腔和沿着第一偏振轴的第一激光频率的激光照射和沿第二偏振轴的第二熔化频率。 第一和第二激光频率之间的差频与双折射的大小有关，并且双折射响应于扰动而变化。 来自每个激光器12,14,16的输出光104被馈送到折射光栅106，其将光束104分成不同的波长组，每组具有给定激光器的两个激光频率和极化。 每个波长组被馈送到对应的分析器122-126，该分析器122-126将每个激光器的第一和第二频率和偏振组合以形成较低的差分或“拍频”，从而允许使用较低频率检测装置138-142。

公开(公告)号：US5534993A

公开(公告)日：1996-07-09

申请号：US260136

申请日：1994-06-15

申请人： Gary A. Ball ,  Leon A. Newman

发明人： Gary A. Ball ,  Leon A. Newman

IPC分类号： G01S17/32 ,  G01C3/00

CPC分类号： G01S17/325 ,  G01S7/497

摘要： An amplitude modulated continuous wave (AMCW) laser radar (ladar) system is provided with a dual-wavelength source 10 which provides a dual wavelength signal 12 (one fixed and one chirped) which is launched down a fiber 28 to a target 38 and reflected back along the fiber 28 and the return detected by a detector 52. The transmitted signal is detected by a detector 56. The detectors 52, 56 provide an electrical return beat signal and reference beat signal, respectively, indicative of the difference between the wavelengths incident thereon. The signals are fed to a frequency mixer 60 which subtracts the two beat frequencies and signal processing logic 64 computes the distance to the target 38. Using dual wavelengths and beat frequencies provides a much broader chirp bandwidth than conventional ladar techniques, and allows for higher power sources, thereby reducing range error.

摘要翻译： 幅度调制连续波（AMCW）激光雷达（拉达）系统设有双波长源10，双波长源10提供双波长信号12（一个固定和一个啁啾），其从光纤28向下发射到目标38并被反射 传输的信号由检测器56检测。检测器52,56分别提供电返回拍频信号和参考节拍信号，其指示波长事件之间的差异 上。 信号被馈送到混频器60，该混频器减去两个拍频，并且信号处理逻辑64计算到目标38的距离。使用双波长和拍频可提供比传统的拉达技术更宽的啁啾带宽，并且允许更高的功率 来源，从而减少范围误差。

公开(公告)号：US06370290B1

公开(公告)日：2002-04-09

申请号：US08934189

申请日：1997-09-19

申请人： Gary A. Ball ,  Robert W. Ade ,  Karl Kissa ,  Paul Dunn ,  Timothy C. Munks ,  Ronald T. Logan, Jr. ,  Eitan Gertel

发明人： Gary A. Ball ,  Robert W. Ade ,  Karl Kissa ,  Paul Dunn ,  Timothy C. Munks ,  Ronald T. Logan, Jr. ,  Eitan Gertel

IPC分类号： G02B612

CPC分类号： G02B6/4201 ,  G02B6/4215 ,  G02B6/4239 ,  G02B6/4244 ,  G02B6/4266 ,  G02B6/4271 ,  G02B6/4285

摘要： An integrated optical transmitter for use in an optical system has an optical head assembly with an optical beam generator for providing an optical beam and a lens assembly collecting the optical beam and generating therefrom a formed optical beam. Interface optics receives the formed optical beam and provides optical coupling so as to minimize insertion loss to the optical beam. Also included is an optical modulator for receiving the optical beam from the interface optics and for providing a modulated optical beam in response to received modulation signals. The optical modulator is coupled to the interface optics to be in a fixed relationship therewith.

摘要翻译： 用于光学系统的集成光发射器具有光学头组件，其具有用于提供光束的光束发生器和收集光束并由其产生形成的光束的透镜组件。 接口光学器件接收所形成的光束并提供光耦合，以使对光束的插入损耗最小化。 还包括用于从接口光学器件接收光束并响应于接收到的调制信号提供调制光束的光调制器。 光调制器耦合到界面光学器件以与其成为固定的关系。