-
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
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
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
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。
-
4.发明授权
公开(公告)号：US5317576A
公开(公告)日：1994-05-31
申请号：US13117
申请日：1993-02-01
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：US5042897A
公开(公告)日：1991-08-27
申请号：US456450
申请日：1989-12-26
申请人： Gerald Meltz , William H. Glenn
发明人： Gerald Meltz , William H. Glenn
CPC分类号： G02B6/02133 , G02B6/02109 , G02B6/02128
摘要： An optical waveguide light tapping arrangement includes an optical waveguide having solid portions that guide light in a first path along a longitudinal axis, with at least one grating region being embedded in the solid portion at a location remote from its end portions. The grating region includes a multitude of grating elements extending with a substantially equal longitudinal spacing at an oblique angle relative to the longitudinal axis to redirect light reaching the grating elements between the first path and at least one second path extending externally of the waveguide at an angle relative to the longitudinal axis that depends on the oblique angle. When light is directed in one of the first and second paths toward the grating region, it is redirected by the grating elements into the respectively other of the second and first paths with attendant in-phase combination in the other path of light having a wavelength within a narrow range around a central wavelength that is in a predetermined relationship to the spacing of the grating elements. The light propagating in the other path can then be captured. The grating elements are formed in the core by exposing the core to an interference pattern of two ultraviolet radiation beams that are symmetrical with respect to a plane extending at the oblique angle relative to the core axis.
-
公开(公告)号：US4818102A
公开(公告)日：1989-04-04
申请号：US945158
申请日：1986-12-22
申请人： William H. Glenn
发明人： William H. Glenn
CPC分类号： G01J5/08 , G01J5/0834 , G01J5/0896 , G01J5/60 , G01J2001/4242 , G01J2005/0051
摘要： An optical pyrometer makes a temperature measurement of a remote body that is insensitive to spurious radiation by modulating the temperature of the body of optical irradiation in a first optical wavelength range at a low modulation frequency and synchronous detection of emitted optical radiation in a second optical wavelength range, together with modulation in the second optical wavelength range and detection in the first wavelength range. The measurement so made are combined to form a parameter representative of the body temperature that is insensitive to the environment of the body.
摘要翻译： 光学高温计通过在低调制频率下调制第一光波长范围内的光照射体的温度并以第二光波长的发射光辐射进行同步检测，来对偏振辐射不敏感的远端体进行温度测量 范围，以及在第二光学波长范围内的调制和在第一波长范围内的检测。 将如此制成的测量结合形成表示对身体环境不敏感的体温的参数。
-
公开(公告)号：US5007705A
公开(公告)日：1991-04-16
申请号：US456449
申请日：1989-12-26
CPC分类号： G02B6/29322 , G02B6/022 , G02B6/02204 , G02B6/29395 , G02F1/0115 , G02F1/0126 , G02F1/0131 , G02F1/0147 , G02F1/125 , G02F2201/02 , G02F2201/307 , G02F2203/055
摘要： A variable light filtering arrangement includes at least one optical fiber section including a waveguiding core, and at least one permanent Bragg grating region in the optical fiber section. The grating region includes a plurality of grating elements constituted by periodic refractive index variations of a predetermined initial periodicity and cumulatively redirecting, of the light launched into the core for guided propagation therein, that having an axial wavelength within a narrow band around a central wavelength that is determined by the periodicity and refractive index variations of the grating elements. At least one of the periodicity and refractive index variations of the grating region is controlledly modified in such a manner as to temporarily change the central wavelength within a predetermined wavelength range.
摘要翻译： 可变光滤波装置包括至少一个包括波导芯的光纤部分和光纤部分中的至少一个永久布拉格光栅区域。 光栅区域包括多个光栅元件，其由预定的初始周期的周期性折射率变化构成，并且累积地重定向发射到芯中的光，用于在其中引导传播，其具有围绕中心波长的窄带内的轴向波长， 由光栅元件的周期性和折射率变化决定。 光栅区域的周期性和折射率变化中的至少一种可以以预定波长范围内暂时改变中心波长的方式进行可变地修改。
-
公开(公告)号：US4123149A
公开(公告)日：1978-10-31
申请号：US814052
申请日：1977-07-08
IPC分类号： H01S3/082
CPC分类号： H01S3/0826
摘要： An unstable resonator having high magnification and capable of accommodating an active medium having high gain and small dimensions is disclosed. The unstable resonator, formed with a pair of coupled cavities, has a diffraction grating capable of providing high resolution of the bandwidth of radiation from a high gain medium such as a dye medium and is capable of providing a laser beam with a continuous cross-section having far field characteristics of high quality.
摘要翻译： 公开了一种具有高放大率并且能够容纳具有高增益和小尺寸的有源介质的不稳定谐振器。 形成有一对耦合空腔的不稳定谐振器具有能够提供来自诸如染料介质的高增益介质的辐射带宽的高分辨率的衍射光栅，并且能够提供具有连续横截面的激光束 具有高品质的远场特性。
-
公开(公告)号：US5230005A
公开(公告)日：1993-07-20
申请号：US788015
申请日：1991-11-05
IPC分类号： H01S3/1055 , H01S3/139 , H01S3/213
CPC分类号： H01S3/139 , H01S3/1055 , H01S3/213
摘要： A broadband laser which can be electronically tuned to a narrow line by insertion of a frequency selective element in the laser cavity.
摘要翻译： 宽带激光器，其可以通过在激光腔中插入频率选择元件而被电子调谐到窄线。
-
公开(公告)号：US4807950A
公开(公告)日：1989-02-28
申请号：US122830
申请日：1987-11-19
申请人： William H. Glenn , Gerald Meltz , Elias Snitzer
发明人： William H. Glenn , Gerald Meltz , Elias Snitzer
IPC分类号： G01J1/02 , G01K11/12 , G01L1/00 , G02B5/18 , G02B6/00 , G02B6/02 , G02B6/124 , G02B6/34 , G02F1/01
CPC分类号： G02B5/18 , G02B6/02133 , G02B6/022 , G02B6/02204 , G02B6/124 , Y10S359/90
摘要： An optical fiber has a dielectric periodic index of refraction phase grating established in its core by intense angled application of several transverse beams of ultraviolet light, enabling the establishment of a distributed, spatially resolving optical fiber strain gauge.
摘要翻译： 光纤通过强烈的角度施加几个紫外线的横梁，具有建立在其芯中的折射相位光栅的介电周期性折射率，使得能够建立分布式空间分辨的光纤应变计。
-
-
-
-
-
-
-
-
-
搜索结果
19 条记录 (耗时 0.03 秒)
