公开(公告)号：US09634769B2

公开(公告)日：2017-04-25

申请号：US14582422

申请日：2014-12-24

Applicant: NATIONAL APPLIED RESEARCH LABORATORIES

Inventor： Shien-Kuei Liaw ,  Ren-Young Liu ,  Hsiang Wang ,  Yen-Hung Lu

IPC: H04J14/02 ,  G02B6/02 ,  G02B6/00 ,  H04B10/572 ,  H04B10/50 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/00

CPC classification number: H04B10/572 ,  H01S3/0064 ,  H01S3/06795 ,  H01S3/094015 ,  H01S3/09415 ,  H01S3/1608 ,  H04B10/503

Abstract: A robust broadband ASE (amplified spontaneous emission) fiber light source device outputs a light beam which is little affected by temperature and radiation. The light source device is a single-pass backward or double-pass backward architecture, and has a coolerless pump laser and temperature compensated bandpass reflector. The light source device may have a high pass filtering element disposed between the wavelength division multiplexer thereof and the optical isolator thereof, so as to compensate the effect of the temperature to the mean wavelength of the light beam. The specific band of the temperature compensated bandpass reflector which reflects the light beam, and the band which the high pass filtering element transmits the light beam are within the band which the ASE unit amplifies the light beam, and the high pass filtering element mainly absorbs the light beam outside the specific band.

公开(公告)号：US09077143B2

公开(公告)日：2015-07-07

申请号：US13937786

申请日：2013-07-09

Applicant: National Applied Research Laboratories

Inventor： Tz-Shiuan Peng ,  Ren-Young Liu ,  Lon Wang

IPC: H01S3/067 ,  H01S3/094 ,  H01S3/16

CPC classification number: H01S3/06754 ,  H01S3/067 ,  H01S3/094003 ,  H01S3/094023 ,  H01S3/1608

Abstract: An optical fiber apparatus is suitable to operate under irradiation, more particularly to mitigating the damage of a rare-earth-doped optical fiber element as part of an optical fiber assembly causes by irradiation. The irradiation mitigation attributes to a photo-annealing apparatus including at least a shorter wavelength photo-annealing spectral content, which is relative to that of a pump light source, for effectively photo-annealing the rare-earth-doped fiber element. Photo-annealing by such shorter wavelength light results in a fast and nearly complete recovery of radiation induced attenuation of the rare-earth-doped optical fiber element in the wavelength range from 900 nm to 1700 nm.

Abstract translation: 光纤设备适合于在照射下进行操作，更具体地说，是减轻作为光纤组件的一部分的掺杂稀土元素光纤元件的损害。 照射减轻属性属于光退火装置，其包括相对于泵浦光源的至少较短的波长光退火光谱含量，用于有效地对稀土掺杂的光纤元件进行光退火。 通过这种较短波长的光的光退火导致在900nm至1700nm的波长范围内的稀土掺杂光纤元件的辐射诱导衰减的快速且几乎完全的恢复。

公开(公告)号：US20140055786A1

公开(公告)日：2014-02-27

申请号：US13973495

申请日：2013-08-22

Applicant: National Cheng Kung University ,  National Applied Research Laboratories

Inventor： Yu-Lung Lo ,  Ren-Young Liu ,  Chih-Chung Yen ,  Yi-Fan Chung

IPC: G01J4/00

CPC classification number: G01J4/00 ,  G01C19/72 ,  G01J4/04 ,  G02B6/2793

Abstract: This invention relates to a near real time optical compensation verification system for verifying a fiber or fiber component through internal or external compensation to achieve equivalently free space propagation of a broadband light when coupled into fiber. Preferably, no component is added to the fiber or fiber component, and the compensation method is realized through real time fiber bending, twisting or other means at either or both ends of a fiber or fiber component. The output optical characteristics of the compensated fiber or fiber component are measured by a polarimeter through changing the input light properties. The required multi-variable compensation to achieve Unitary Matrix free space condition is computed in near real time, and as the feedback to formulate the required compensation. The disclosed invention not only enhances yield in the fiber and fiber component, but also accelerates the optimization of optical fiber sensors employed free space fiber coil.

Abstract translation: 本发明涉及一种用于通过内部或外部补偿来验证光纤或光纤部件的近实时光学补偿验证系统，以便在耦合到光纤中时实现宽带光的等效自由空间传播。 优选地，不向纤维或纤维组分添加组分，并且通过在纤维或纤维组分的任一端或两端实时纤维弯曲，扭曲或其它方式实现补偿方法。 通过改变输入光特性，通过偏振计来测量补偿光纤或光纤部件的输出光学特性。 实现单位矩阵自由空间条件所需的多变量补偿可以近似实时计算，并作为反馈来制定所需的补偿。 所公开的发明不仅提高了纤维和纤维成分的产量，而且加速了采用自由空间纤维线圈的光纤传感器的优化。

公开(公告)号：US20140023311A1

公开(公告)日：2014-01-23

申请号：US13941065

申请日：2013-07-12

Applicant: National Tsing Hua University ,  National Applied Research Laboratories

Inventor： Ming-Chang Lee ,  Ren-Young Liu

IPC: G02B6/26

CPC classification number: G02B6/26 ,  G02B6/105 ,  G02B6/2813

Abstract: This patent disclosure is based on a silicon, instead of LiNbO3, waveguide chip. The disclosed silicon-based multi-function integrated-optic chip comprises a unique design and fabrication features onto it. A unique polarization-diversity coupler is designed and fabricated to couple the external light into the silicon waveguide structure. A unique two-step (vertical and lateral) taper waveguide region is designed and fabricated to bridge the polarization-diversity coupler output with the input of a multi-mode interferometer (MMI) splitter for power loss reduction. At either end of the Y-junction output, there is a phase modulator to achieve optical phase modulation through various physics mechanisms. With this newly-developed silicon-based multi-function integrated optic chip, the size and cost of fiber sensors including FOG's can be greatly reduced.

Abstract translation: 该专利公开是基于硅，而不是LiNbO 3波导芯片。 所公开的硅基多功能集成光学芯片包括其独特的设计和制造特征。 设计并制造了一种独特的极化分集耦合器，将外部光耦合到硅波导结构中。 设计并制造了一个独特的两步（垂直和横向）锥形波导区域，以便将偏振分集耦合器输出与多模干涉仪（MMI）分离器的输入端桥接，以降低功率损耗。 在Y结输出的任一端，存在通过各种物理机制实现光相位调制的相位调制器。 利用这种新开发的硅基多功能集成光学芯片，可大大降低包括FOG在内的光纤传感器的尺寸和成本。

公开(公告)号：US20130293948A1

公开(公告)日：2013-11-07

申请号：US13937786

申请日：2013-07-09

Applicant: National Applied Research Laboratories

Inventor： Tz-Shiuan Peng ,  Ren-Young Liu ,  Lon Wang

IPC: H01S3/067

CPC classification number: H01S3/06754 ,  H01S3/067 ,  H01S3/094003 ,  H01S3/094023 ,  H01S3/1608

Abstract: An optical fiber apparatus is suitable to operate under irradiation, more particularly to mitigating the damage of a rare-earth-doped optical fiber element as part of an optical fiber assembly causes by irradiation. The irradiation mitigation attributes to a photo-annealing apparatus including at least a shorter wavelength photo-annealing spectral content, which is relative to that of a pump light source, for effectively photo-annealing the rare-earth-doped fiber element. Photo-annealing by such shorter wavelength light results in a fast and nearly complete recovery of radiation induced attenuation of the rare-earth-doped optical fiber element in the wavelength range from 900 nm to 1700 nm.

Abstract translation: 光纤设备适合于在照射下进行操作，更具体地说，是减轻作为光纤组件的一部分的掺杂稀土元素光纤元件的损害。 照射减轻属性属于光退火装置，其包括相对于泵浦光源的至少较短的波长光退火光谱含量，用于有效地对稀土掺杂的光纤元件进行光退火。 通过这种较短波长的光的光退火导致在900nm至1700nm的波长范围内的稀土掺杂光纤元件的辐射诱导衰减的快速且几乎完全的恢复。

公开(公告)号：US10177523B2

公开(公告)日：2019-01-08

申请号：US14854020

申请日：2015-09-14

Applicant: NATIONAL APPLIED RESEARCH LABORATORIES

Inventor： Sheng Hsiung Chang ,  Ren-Young Liu ,  Chii-Chang Chen ,  Chao-Yi Tai

IPC: H01S3/094 ,  H01S3/00 ,  H01S3/16 ,  H01S3/067 ,  G02B6/00

Abstract: An optical fiber apparatus and a method of recovering radiation-induced-attenuation (RIA) onto a rare-earth-doped optical fiber under irradiation are provided in this disclosure. A light source is coupled to a rare-earth doped optical fiber. The light source emits a combination of mode locked pulsed light and non-mode locked quasi-continuous-wave light. The mode locked pulsed light are used to recover RIA onto the rare-earth doped optical fiber in real time, and the non-mode locked light are used to pump the rare-earth doped optical fiber as a gain medium. Each pulsed duration of the mode locked pulsed light is much shorter than operation duration of the non-mode locked light, such that an instantaneous power of the mode locked pulsed light exceeds a saturated pumping power required for the rare-earth doped optical fiber, so as to effectively elevate the core temperature of rare-earth doped fiber to achieve a confined photo-annealed recovery of RIA onto rare-earth doped fibers.

公开(公告)号：US08805135B2

公开(公告)日：2014-08-12

申请号：US13941065

申请日：2013-07-12

Applicant: National Applied Research Laboratories ,  National Tsing Hua University

Inventor： Ming-Chang Lee ,  Ren-Young Liu

IPC: G02B6/27 ,  G02B6/26 ,  G02B6/28 ,  G02B6/10

CPC classification number: G02B6/26 ,  G02B6/105 ,  G02B6/2813

Abstract: This patent disclosure is based on a silicon, instead of LiNbO3, waveguide chip. The disclosed silicon-based multi-function integrated-optic chip comprises a unique design and fabrication features onto it. A unique polarization-diversity coupler is designed and fabricated to couple the external light into the silicon waveguide structure. A unique two-step (vertical and lateral) taper waveguide region is designed and fabricated to bridge the polarization-diversity coupler output with the input of a multi-mode interferometer (MMI) splitter for power loss reduction. At either end of the Y-junction output, there is a phase modulator to achieve optical phase modulation through various physics mechanisms. With this newly-developed silicon-based multi-function integrated optic chip, the size and cost of fiber sensors including FOG's can be greatly reduced.

Abstract translation: 该专利公开是基于硅，而不是LiNbO 3波导芯片。 所公开的硅基多功能集成光学芯片包括其独特的设计和制造特征。 设计并制造了一种独特的极化分集耦合器，将外部光耦合到硅波导结构中。 设计并制造了一个独特的两步（垂直和横向）锥形波导区域，以便将偏振分集耦合器输出与多模干涉仪（MMI）分离器的输入端桥接，以降低功率损耗。 在Y结输出的任一端，存在通过各种物理机制实现光相位调制的相位调制器。 利用这种新开发的硅基多功能集成光学芯片，可大大降低包括FOG在内的光纤传感器的尺寸和成本。