公开(公告)号：US20180115134A1

公开(公告)日：2018-04-26

申请号：US15568876

申请日：2016-04-22

Applicant: Universite de Limoges ,  Centre National de La Recherche Scientifique

Inventor： Vincent Roy ,  Romain Dauliat ,  Raphael Emmanuel Jamier

IPC: H01S3/067 ,  H01S3/102

CPC classification number: H01S3/06733 ,  H01S3/06729 ,  H01S3/06737 ,  H01S3/1028

Abstract: A monomode optical fiber, and a process for manufacturing such a fiber, that comprises a monomode core and at least one cladding encircling the core. The monomode core comprises at least two zones, a first zone with at least one first refractive index and a second zone with at least one second refractive index different from the first refractive index. The difference between the first refractive index and the second refractive index is of the same order of magnitude as the variation in the refractive index of the second zone between the inactive state and the active state of the fiber.

公开(公告)号：US20180083414A1

公开(公告)日：2018-03-22

申请号：US14630625

申请日：2015-02-24

Applicant: Purdue Research Foundation

Inventor： Andrew Marc Weiner ,  Minghao Qi ,  Xiaoxiao Xue

IPC: H01S3/11 ,  H01S3/102 ,  H01S3/094 ,  H01S3/107 ,  H01S3/091 ,  H01S3/13

CPC classification number: H01S3/1109 ,  G02F1/0121 ,  G02F2203/15 ,  G02F2203/56 ,  H01S3/0014 ,  H01S3/005 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/0912 ,  H01S3/094 ,  H01S3/094026 ,  H01S3/1028 ,  H01S3/107 ,  H01S3/1305

Abstract: A tunable optical comb generator having a source laser configured to generate a continuous wave (CW) light at a first wavelength; and a microresonator coupled to the source laser and configured to receive the CW light and generate an optical signal having a plurality of output wavelengths corresponding to the first wavelength. the generator includes a microresonator tuning device coupled to the microresonator and configured to tune the microresonator to compensate the microresonator for wavelength shifts. A control circuit iscoupled to the microresonator tuning device and configured to generate a control signal to control the microresonator tuning device based on the optical signal. Multiple microresonators in the form of microrings may be included to tune the generator. A heater coupled to the microresonators may be used to adjust the microresonators.

公开(公告)号：US20170229837A1

公开(公告)日：2017-08-10

申请号：US15018575

申请日：2016-02-08

Applicant: RANOVUS INC.

Inventor： Bin CAO ,  Dylan LOGAN ,  Douglas J. S. BECKETT ,  Rong CHEN ,  Andrew Peter KNIGHTS

IPC: H01S3/102 ,  H01S3/083

CPC classification number: H01S3/1028 ,  G02F1/011 ,  G02F1/0121 ,  G02F1/0147 ,  G02F2203/15 ,  G02F2203/21 ,  H01S3/083

Abstract: A device and method for tuning a ring resonator using self-heating stabilization is provided. A light source is controlled to produce an optical signal, input to an optical ring resonator, at a power where self-heating shifts a resonance wavelength of the optical ring resonator by at least 10 picometers, the self-heating comprising absorption in the optical ring resonator of optical power from a received optical signal. Prior to using the optical ring resonator at least one of modulate and filter the optical signal at the optical ring resonator, a heater of the optical ring resonator is controlled to an operating temperature at which the resonance wavelength of the optical ring resonator is greater than a respective wavelength of the optical signal.

公开(公告)号：US20170047706A1

公开(公告)日：2017-02-16

申请号：US15306565

申请日：2015-01-09

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Yojiro WATANABE ,  Takeshi SAKIMURA ,  Takayuki YANAGISAWA

IPC: H01S3/131 ,  H01S3/063 ,  H01S3/08 ,  H01S3/16

CPC classification number: H01S3/1317 ,  G02B6/4266 ,  G02B6/4293 ,  G02B6/43 ,  H01S3/0632 ,  H01S3/0637 ,  H01S3/08054 ,  H01S3/1028 ,  H01S3/1603 ,  H01S3/163 ,  H01S3/17

Abstract: An object is to provide an optical device capable of relaxing a manufacturing condition for an optical waveguide used in the optical device. An optical device 500 is provided with an optical waveguide 200 including a core and a cladding optically joined together, and a temperature controller 600 that controls temperature of the optical waveguide, wherein the optical waveguide includes the core and the cladding formed such that a normalized frequency specified for light propagating through the optical waveguide changes across a cutoff frequency of a guided mode determined from a structure of the optical waveguide in a temperature range in which a refractive index of the core is higher than a refractive index of the clad. The temperature controller controls the temperature of the optical waveguide over a temperature range across temperature at which the normalized frequency equals to the cutoff frequency.

Abstract translation: 本发明的目的是提供一种能够缓和光学装置中使用的光波导的制造条件的光学装置。 光学装置500设置有包括光学连接在一起的芯和包层的光波导200和控制光波导温度的温度控制器600，其中光波导包括芯和形成的包层，使得归一化频率 对于通过光波导传播的光规定的光束在芯的折射率高于包层的折射率的温度范围内，在由光波导的结构确定的导模的截止频率上变化。 温度控制器在标准化频率等于截止频率的温度的温度范围内控制光波导的温度。

公开(公告)号：US20160344155A1

公开(公告)日：2016-11-24

申请号：US15158985

申请日：2016-05-19

Applicant: QIOPTIQ PHOTONICS GMBH & CO. KG

Inventor： Frank Mueller ,  Arne Härter

IPC: H01S3/108 ,  H01S3/0933 ,  H01S3/102 ,  H01S3/0915

CPC classification number: H01S5/0092 ,  G02F1/39 ,  G02F2001/3503 ,  H01S3/0092 ,  H01S3/0915 ,  H01S3/0933 ,  H01S3/1022 ,  H01S3/1026 ,  H01S3/1028 ,  H01S3/1083 ,  H01S5/4025

Abstract: A light source is disclosed, having a quasi-incoherent broadband pump source configured to produce a longitudinally and transversally multi-mode pump beam. The light source may include a means for narrowing the linewidth of the pump beam. The light source includes an optical parametric oscillator with an optical cavity containing a crystal. The optical parametric oscillator is configured to receive light from the pump source and produce a first output light beam and a second output light beam. An optical coupler is disposed between the pump source and the optical parametric oscillator. At least one of the first and second output light beams is a substantially single transversal mode light having a narrower linewidth than the pump source.

Abstract translation: 公开了一种光源，其具有被配置为产生纵向和横向多模式泵浦光束的准非相干宽带泵浦源。 光源可以包括用于使泵浦光束的线宽变窄的装置。 光源包括具有含有晶体的光学腔的光学参量振荡器。 光学参数振荡器被配置为接收来自泵浦源的光并且产生第一输出光束和第二输出光束。 光耦合器设置在泵浦源和光学参量振荡器之间。 第一和第二输出光束中的至少一个是具有比泵浦源更窄的线宽的基本上单一的横向模式光。

公开(公告)号：US20160204569A1

公开(公告)日：2016-07-14

申请号：US14947693

申请日：2015-11-20

Applicant: Fujitsu Optical Components Limited

Inventor： Hiroshi Kuzukami

IPC: H01S3/102 ,  H01S3/00 ,  H01S3/04 ,  H01S3/106

CPC classification number: H01S3/1028 ,  H01S3/0014 ,  H01S3/0405 ,  H01S3/1062 ,  H01S5/02415 ,  H01S5/02446 ,  H01S5/0617 ,  H01S5/06804 ,  H01S5/0687

Abstract: An optical transmitter includes: a wavelength tunable light source; an etalon filter that filters output light of the light source; a measurement unit that generates a monitor value corresponding to power of output light of the etalon filter; and a controller that controls a temperature of the light source and a temperature of the etalon filter. Until the wavelength of the output light of the light source is adjusted to a target wavelength, the controller alternately performs first processing to control the temperature of the light source based on the monitor value so as to shift the wavelength of the output light of the light source by a specified amount, and second processing to control the temperature of the etalon filter based on the monitor value so as to shift the transmission characteristics of the etalon filter by the specified amount.

Abstract translation: 光发射机包括：波长可调光源; 用于过滤光源的输出光的标准具过滤器; 测量单元，其产生与所述标准具过滤器的输出光的功率对应的监视值; 以及控制器，其控制光源的温度和标准具过滤器的温度。 直到光源的输出光的波长被调整为目标波长，控制器基于监视值交替地执行第一处理以控制光源的温度，以便使光的输出光的波长偏移 源和指定量的第二处理，以及基于监视值来控制标准具过滤器的温度的第二处理，以将标准具过滤器的传输特性偏移指定量。

公开(公告)号：US20150165561A1

公开(公告)日：2015-06-18

申请号：US14404513

申请日：2013-05-30

Applicant: SNECMA

Inventor： Yves Le Meur ,  Jean-Baptiste Mottin

IPC: B23K26/38 ,  B23K26/06 ,  B23K26/14

CPC classification number: B23K26/1435 ,  B23K26/0622 ,  B23K26/382 ,  B23K26/389 ,  B23K2101/001 ,  H01S3/0407 ,  H01S3/061 ,  H01S3/093 ,  H01S3/1028 ,  H01S3/1643

Abstract: A method of drilling a part, or a turbine engine part, by a pulse laser generator including a cavity in which there is mounted a solid bar for generating laser pulses, the method including determining values of a plurality of operating parameters of the laser generator for forming orifices of predetermined diameter in the part, and taking account, among the parameters, of a setpoint value for the temperature of the laser cavity, which value is determined as a function of characteristics of the orifices to be drilled.

Abstract translation: 一种通过包括空腔的脉冲激光发生器来钻出部件或涡轮发动机部件的方法，其中安装有用于产生激光脉冲的实心棒，该方法包括确定激光发生器的多个操作参数的值， 在部件中形成预定直径的孔，并且在参数之中考虑激光腔的温度的设定值，该值被确定为要钻孔的特征的函数。

公开(公告)号：US20150002923A1

公开(公告)日：2015-01-01

申请号：US14485131

申请日：2014-09-12

Applicant: FUJITSU LIMITED

Inventor： Miki ONAKA

IPC: H01S3/067 ,  G02B6/42 ,  H01S3/16 ,  G02B6/02 ,  H01S3/102 ,  H01S3/094

CPC classification number: H01S3/06704 ,  G02B6/02366 ,  G02B6/4268 ,  H01S3/0078 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/09415 ,  H01S3/1028 ,  H01S3/1603 ,  H01S3/1608 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/02469 ,  H01S5/0683

Abstract: An amplifying apparatus includes an optical fiber that includes a wound portion doped with a rare earth element and three-dimensionally wound, holes being formed in cladding of the optical fiber and surrounding a core of the optical fiber, the optical fiber transmitting signal light injected thereinto; a thermally conductive member in which the wound portion of the optical fiber embedded, the thermally conductive member having thermal conductivity; a light source that emits excitation light; an injecting unit that injects the excitation light emitted by the light source, into the optical fiber; and a temperature adjusting unit that includes a thermal coupling unit thermally connected to the light source and the thermally conductive member, the temperature adjusting unit adjusting a temperature of the thermal coupling unit.

Abstract translation: 放大装置包括光纤，其包括掺杂有稀土元素的卷绕部分和三维缠绕的光纤，并且围绕光纤的芯包围光纤，光纤传输信号光注入到光纤中 ; 导热构件，其中所述光纤的所述卷绕部分被嵌入，所述导热构件具有导热性; 发射激发光的光源; 注入单元，其将由所述光源发射的激发光注入到所述光纤中; 以及温度调节单元，其包括热连接到所述光源和所述导热构件的热耦合单元，所述温度调节单元调节所述热耦合单元的温度。

公开(公告)号：US08879591B2

公开(公告)日：2014-11-04

申请号：US11237846

申请日：2005-09-29

Applicant: Thomas Paul Simler ,  Charles Jay Pifer ,  Robert Allen Shincovich

Inventor： Thomas Paul Simler ,  Charles Jay Pifer ,  Robert Allen Shincovich

IPC: H01S3/04 ,  H01S3/131 ,  H01S3/102

CPC classification number: H01S3/102 ,  H01S3/0078 ,  H01S3/06704 ,  H01S3/06758 ,  H01S3/1028 ,  H01S3/131 ,  H01S3/1317

Abstract: An apparatus includes a laser that generates a predetermined wavelength when the laser operates at room temperature, the predetermined wavelength being offset from a specific wavelength. The laser has a controlled wavelength range due to a wavelength drift, the wavelength range having a first wavelength as the upper boundary and a second wavelength as the lower boundary, the first wavelength is generated when the laser operates at a first temperature of an ambient and the second wavelength is generated when the laser operates at a predetermined temperature higher than a second temperature of the ambient. The apparatus includes a heater that heats the laser such that a wavelength in the controlled wavelength range that is generated by the laser when heated by the heater from the second temperature is longer than a short wavelength that is generated by the laser centered on the specific wavelength that operates at the second temperature; and a control circuit configured to turn on the heater.

Abstract translation: 一种设备包括当激光在室温下操作时产生预定波长的激光器，预定波长偏离特定波长。 激光由于波长漂移而具有受控的波长范围，波长范围具有作为上边界的第一波长和作为下边界的第二波长，当激光在环境的第一温度下操作时产生第一波长， 当激光在高于环境温度的第二温度的预定温度下工作时，产生第二波长。 该装置包括：加热器，其加热激光器，使得当由加热器从第二温度加热时由激光器产生的受控波长范围内的波长比由以特定波长为中心的激光器产生的短波长长 在第二个温度下运行; 以及控制电路，被配置为接通加热器。

公开(公告)号：US20120008649A1

公开(公告)日：2012-01-12

申请号：US12814628

申请日：2010-06-14

Applicant: Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho

Inventor： Xinhua Gu ,  Mark Bendett ,  Gyu Cheon Cho

IPC: H01S3/098

CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/0941 ,  H01S3/1028 ,  H01S3/1305 ,  H01S3/1618 ,  H01S3/1698

Abstract: A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs.

Abstract translation: 脉冲激光器包括振荡器和放大器。 衰减器和/或预压缩器可以设置在振荡器和放大器之间以提高性能以及可能的从激光器输出的脉冲的质量。 这种预压缩可以用振荡器和放大器之间的频谱滤波器和/或分散元件来实现。 脉冲激光器可以具有包括可能具有Telcordia分级质量和可靠性的模块化设备的模块化设计。 从设备模块延伸的光纤尾纤可以拼接在一起形成激光系统。 在一个实施例中，在大约1050nm操作的激光系统包括具有约19nm的光谱带宽的振荡器。 该振荡器信号可被操纵以产生宽度低于大约90fs的脉冲。