公开(公告)号：US08730456B2

公开(公告)日：2014-05-20

申请号：US12942385

申请日：2010-11-09

Applicant: Lew Goldberg ,  Stephen Chinn

Inventor： Lew Goldberg ,  Stephen Chinn

IPC: G02B6/32 ,  G01C3/08 ,  G02B6/26

CPC classification number: G01S7/4812 ,  G01S7/4818

Abstract: A compact monostatic optical transmitter/receiver device simultaneously transmits an optical beam and collects returning light using a single lens or optical aperture. The system provides automatic alignment of the transmit and receive aperture and is compatible with fiber-coupled laser sources. Transmit light is emitted from a double-cladding fiber core while received light is coupled into the inner cladding of the same fiber. The transmit light propagating in the core and the received light propagating in the inner cladding are separated by the means of a diplexer comprised of a fused fiber coupler or a fiber-coupled micro-optic device.

Abstract translation: 紧凑的单稳态光发射机/接收机设备同时传输光束并使用单个透镜或光学孔收集返回的光。 该系统提供发射和接收孔径的自动对准，并与光纤耦合激光源兼容。 发射光从双包层光纤芯发射，而接收的光耦合到相同光纤的内包层中。 在芯中传播的发射光和在内包层中传播的接收光通过由融合光纤耦合器或光纤耦合微光学器件组成的双工器的手段分离。

公开(公告)号：US08488635B2

公开(公告)日：2013-07-16

申请号：US12857896

申请日：2010-08-17

Applicant: Lew Goldberg ,  Brian J. Cole

Inventor： Lew Goldberg ,  Brian J. Cole

IPC: H01S3/115

CPC classification number: H01S3/115

Abstract: An actively Q-switched laser based on UV illumination mitigates pyroelectric effects in lithium niobate. An exemplary embodiment comprises a pump source; a dichroic mirror having one end optically facing said pump source; a gain medium optically facing another end of said dichroic mirror; a polarizer having one end optically facing another end of said gain medium; a quarter wave plate having one end optically facing another end of said polarizer; and a electro-optic crystal having one end optically facing said quarter wave plate, at least one side of said electro-optic crystal being electrically connected to Q-switch driver to have the crystal function as a Q-switch. A UV illumination source illuminates a side surface of said electrical-optic crystal with UV light. An output mirror receives an output from said Q-switch and produces a laser emission.

Abstract translation: 基于UV照明的主动Q开关激光器可减轻铌酸锂的热电效应。 示例性实施例包括泵浦源; 分色镜，其一端光学地面对所述泵浦源; 增益介质，光学地面对所述分色镜的另一端; 偏振器，其一端光学地面对所述增益介质的另一端; 四分之一波片，其一端光学地面对所述偏振器的另一端; 以及电光晶体，其一端光学地面对所述四分之一波片，所述电光晶体的至少一侧与Q开关驱动器电连接以具有作为Q开关的晶体功能。 UV照明源用UV光照亮所述电光晶体的侧表面。 输出镜接收来自所述Q开关的输出并产生激光发射。

公开(公告)号：US06744947B2

公开(公告)日：2004-06-01

申请号：US09965247

申请日：2001-09-28

Applicant: William K. Burns ,  Robert P. Moeller ,  Lew Goldberg

Inventor： William K. Burns ,  Robert P. Moeller ,  Lew Goldberg

IPC: G02B626

CPC classification number: H01S3/06795 ,  H01S3/0085 ,  H01S3/06712 ,  H01S3/06754 ,  H01S3/1003 ,  H01S3/10092 ,  H01S3/13 ,  H01S2301/02 ,  Y10S385/901

Abstract: Featured is a high power, broadband superfluorescent source with very low relative intensity noise (RIN) including a seed source, a modulator operably coupled to the seed source and a polarization maintaining (PM) amplifier operably coupled to the modulator. The output of the seed source is processed in the modulator so the modulator outputs a polarized optical output to the PM amplifier. The PM amplifier amplifies the modulated, polarized optical output so as to provide an amplified polarized optical output therefrom. Also featured is a feedback circuit operably coupled to the PM amplifier to control the transmission of the modulator so as to minimize the amplitude fluctuations in the output signal. Such a source is advantageous in high precision fiber optical rotation sensors and multiplexed strain sensing arrays.

Abstract translation: 特征是具有非常低的相对强度噪声（RIN）的高功率宽带超荧光源，包括种子源，可操作地耦合到种子源的调制器和可操作地耦合到调制器的偏振维持（PM）放大器。 种子源的输出在调制器中进行处理，因此调制器向PM放大器输出偏振光输出。 PM放大器放大经调制的偏振光输出，以便从其提供放大的偏振光输出。 还有一个反馈电路，其可操作地耦合到PM放大器以控制调制器的传输，以便最小化输出信号中的振幅波动。 这样的源在高精度光纤旋转传感器和复用应变传感阵列中是有利的。

公开(公告)号：US06603791B2

公开(公告)日：2003-08-05

申请号：US09733988

申请日：2000-12-12

Applicant: Lew Goldberg ,  Marc Le Flohic

Inventor： Lew Goldberg ,  Marc Le Flohic

IPC: H01S3097

CPC classification number: H01S3/094003

Abstract: A hermetically sealed pump module for use with fiber devices is disclosed. The method and apparatus disclosed enable a pump module to be constructed that has a high coupling tolerance and which is inexpensive and easy to manufacture. The pump module may comprise a transparent window through which a pump beam is coupled from a laser diode into the inner cladding of a double cladding fiber. The transparent window also may serve as a substrate for the inner cladding of the double cladding fiber. The laser diode is sealed within the pump module housing with a lid and the window, which is bonded to the lid. The housing may contain a heat sink, heat-spreading sub-mount and a Peltier cooler.

公开(公告)号：US20120044960A1

公开(公告)日：2012-02-23

申请号：US12857896

申请日：2010-08-17

Applicant: Lew Goldberg ,  Brian J. Cole

Inventor： Lew Goldberg ,  Brian J. Cole

IPC: H01S3/115

CPC classification number: H01S3/115

Abstract: An actively Q-switched laser based on UV illumination mitigates pyroelectric effects in lithium niobate. An exemplary embodiment comprises a pump source; a dichroic mirror having one end optically facing said pump source; a gain medium optically facing another end of said dichroic mirror; a polarizer having one end optically facing another end of said gain medium; a quarter wave plate having one end optically facing another end of said polarizer; and a electro-optic crystal having one end optically facing said quarter wave plate, at least one side of said electro-optic crystal being electrically connected to Q-switch driver to have the crystal function as a Q-switch. A UV illumination source illuminates a side surface of said electrical-optic crystal with UV light. An output mirror receives an output from said Q-switch and produces a laser emission.

Abstract translation: 基于UV照明的主动Q开关激光器可减轻铌酸锂的热电效应。 示例性实施例包括泵浦源; 分色镜，其一端光学地面对所述泵浦源; 增益介质，光学地面对所述分色镜的另一端; 偏振器，其一端光学地面对所述增益介质的另一端; 四分之一波片，其一端光学地面对所述偏振器的另一端; 以及电光晶体，其一端光学地面对所述四分之一波片，所述电光晶体的至少一侧与Q开关驱动器电连接以具有作为Q开关的晶体功能。 UV照明源用UV光照亮所述电光晶体的侧表面。 输出镜接收来自所述Q开关的输出并产生激光发射。

公开(公告)号：US20060239604A1

公开(公告)日：2006-10-26

申请号：US11307929

申请日：2006-02-28

Applicant: Michael Marhic ,  Glen Williams ,  Lew Goldberg ,  Jean-Marc Delavaux

Inventor： Michael Marhic ,  Glen Williams ,  Lew Goldberg ,  Jean-Marc Delavaux

IPC: G02B6/00

CPC classification number: G02F1/395

Abstract: We introduce a novel high average power (>100 mW) fiber optic source, using a wavelength converter based on optical parametric amplification in a nonlinear fiber. In the most fundamental embodiment, light at two different wavelengths is used to generate light at a third wavelength through optical parametric amplification in a highly non-linear fiber. The method provides high average output power at wavelengths that are not accessible by other means. The source has high optical conversion efficiency (>20%), and it can be tuned over tens of nanometers.

Abstract translation: 我们引入了一种新颖的高平均功率（> 100 mW）的光纤源，采用基于非线性光纤参数放大的波长转换器。 在最基本的实施例中，使用两种不同波长的光通过高度非线性光纤中的光学参数放大来产生第三波长的光。 该方法在不能被其他方式访问的波长处提供高平均输出功率。 该光源的光转换效率高（> 20％），可以调谐数十纳米。

公开(公告)号：US06975792B1

公开(公告)日：2005-12-13

申请号：US10290393

申请日：2002-11-08

Applicant: Lew Goldberg ,  Christopher M. McIntosh

Inventor： Lew Goldberg ,  Christopher M. McIntosh

IPC: G02B6/26 ,  G02B6/42 ,  H01S3/094 ,  H01S3/0941

CPC classification number: G02B6/4202 ,  G02B6/4214 ,  H01S3/094003 ,  H01S3/094019 ,  H01S3/0941

Abstract: A method and a corresponding apparatus for side-coupling light into an optical waveguide, such as a double-cladding fiber, are described. The method includes emitting light from a light source and coupling the emitted light into a side of a waveguide that defines a slit disposed on the side of the waveguide at an angle relative to an axis of the waveguide. The emitted light is incident on a surface of the slit and the slit surface reflects the incident light into the waveguide.

Abstract translation: 描述了用于将光侧耦合到诸如双包层光纤的光波导中的方法和相应的装置。 该方法包括从光源发射光并将发射的光耦合到波导的一侧，该波导限定了相对于波导的轴线成一定角度设置在波导侧的狭缝。 发射的光入射在狭缝的表面上，狭缝表面将入射光反射到波导中。

公开(公告)号：US06724528B2

公开(公告)日：2004-04-20

申请号：US10083358

申请日：2002-02-27

Applicant: Jeff Koplow ,  Dahv Kliner ,  Lew Goldberg

Inventor： Jeff Koplow ,  Dahv Kliner ,  Lew Goldberg

IPC: H01S300

CPC classification number: H01S3/06754 ,  G02B6/105 ,  H01S3/06712 ,  H01S3/1603

Abstract: A method of forming a linear polarization-maintaining optical fiber for use in an amplifier, the method comprising the steps of: providing a rare-earth-doped non-polarization-maintaining optical fiber having one or more cladding layers and having a random birefringence; providing a mandrel having a selected diameter; coiling said non-polarization-maintaining optical fiber under a selected tension around said mandrel to induce a linear birefringence greater than said random birefringence in said non-polarization-maintaining optical fiber thereby forming a polarization-maintaining optical fiber; wherein said mandrel diameter is chosen to avoid significant bend loss; wherein said rare-earth dopant is selected from the group consisting Nd3+, Yb3+, Pr3+, Ho3+, Er3+, Sm3+ and Tm3+; wherein said mandrel diameter is selected to be from about 0.1 cm to about 10 cm; and wherein said tension is chosen to avoid undesirable weakening of said non-polarization-maintaining fiber.

Abstract translation: 一种形成用于放大器的线偏振保持光纤的方法，所述方法包括以下步骤：提供具有一个或多个包层并具有随机双折射的稀土掺杂非偏振保持光纤; 提供具有所选直径的心轴;在所述心轴周围以选定的张力卷绕所述非偏振保持光纤以在所述非偏振保持光纤中引起大于所述随机双折射的线性双折射，从而形成偏振保持光 纤维;其中选择所述心轴直径以避免显着的弯曲损耗;其中所述稀土掺杂剂选自Nd 3+，Y b 3+，Pr 3+，Ho 3+， Er 3+，Sm 3+和Tm 3+;其中所述心轴直径选择为约0.1cm至约10cm; 并且其中所述张力被选择以避免所述非偏振保持光纤的不期望的弱化。

公开(公告)号：US06529657B2

公开(公告)日：2003-03-04

申请号：US09790614

申请日：2001-02-23

Applicant: Lew Goldberg ,  Marc LeFlohic

Inventor： Lew Goldberg ,  Marc LeFlohic

IPC: G02B642

CPC classification number: G02B6/4214 ,  G02B6/4206 ,  H01S3/094003

Abstract: A method and apparatus of coupling pump light from an extended source to an optical waveguide is disclosed. The coupling is preferably achieved through the use of a v-groove in the optical waveguide and an angle-selective mechanism that enables the angular distributions of the pump light to be optimized for optimal coupling via facets of the v-groove. Embodiments of the apparatus use a wedge, a double wedge, mirrors, or composite lenses to affect the angle selection of the pump light.

公开(公告)号：US06496301B1

公开(公告)日：2002-12-17

申请号：US09523215

申请日：2000-03-10

Applicant: Jeffrey P. Koplow ,  Dahy Kliner ,  Lew Goldberg

Inventor： Jeffrey P. Koplow ,  Dahy Kliner ,  Lew Goldberg

IPC: G02B6120

CPC classification number: G02B6/14 ,  G02B6/03622 ,  G02B6/4214 ,  H01S3/06704 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/06754 ,  H01S3/08045

Abstract: A multi-mode gain fiber is provided which affords substantial improvements in the maximum pulse energy, peak power handling capabilities, average output power, and/or pumping efficiency of fiber amplifier and laser sources while maintaining good beam quality (comparable to that of a conventional single-mode fiber source). These benefits are realized by coiling the multimode gain fiber to induce significant bend loss for all but the lowest-order mode(s).

Abstract translation: 提供了一种多模增益光纤，其在保持良好的光束质量的同时，能够显着改善光纤放大器和激光源的最大脉冲能量，峰值功率处理能力，平均输出功率和/或泵送效率（与传统的 单模光纤源）。 这些好处是通过卷绕多模增益光纤来实现的，除了最低阶模式之外，还可以为所有的模拟引起明显的弯曲损耗。