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1. 发明授权

US5042898A Incorporated Bragg filter temperature compensated optical waveguide device 失效
标题翻译：并入布拉格滤波器温度补偿光波导器件
公开(公告)号：US5042898A
公开(公告)日：1991-08-27
申请号：US456440
申请日：1989-12-26
申请人： William W. Morey , Walter L. Glomb
发明人： William W. Morey , Walter L. Glomb
IPC分类号： G02B6/02 , G02B6/34 , G02F1/01
CPC分类号： G02B6/29322 , G02B6/0218 , G02B6/29398 , G02F1/0134 , G02B6/022
摘要： A temperature compensated embedded grating optical waveguide light filtering device includes an optical fiber having an elongated core in which light is guided toward a core portion of a predetermined limited length that has embedded therein a multitude of grating elements extending with a substantially equal longitudinal spacing substantially normal to the longitudinal axis and collectively constituting a grating that reflects, of the light propagating in the path toward and reaching the grating elements, that of a wavelength within a narrow range about a central wavelength determined by the spacing of the grating elements and by the index of refraction of the material of the core as influenced by the temperature of and longitudinal strains applied to the grating, back into the path for longitudinal propagation therein opposite to the original propagation direction. Each end of the fiber portion is attached to a different one of two compensating members made of materials with such coefficients of thermal expansion relative to one another and to that of the fiber material as to apply to the fiber longitudinal strains the magnitude of which varies with temperature in such a manner that the changes in the central wavelength that are attributable to the changes in the longitudinal strains substantially compensate for those attributable to the changes in the temperature of the grating.
摘要翻译：温度补偿的嵌入式光栅光波导光滤波装置包括具有细长芯的光纤，光被引导到预定有限长度的芯部分，其中嵌入有大致相等的纵向间隔基本上正常延伸的多个光栅元件并且共同构成光栅，其反射在光路中朝向并到达光栅元件的光的传播的波长在由光栅元件的间隔决定的中心波长附近的窄范围内的波长，受到施加到光栅的温度和纵向应变影响的芯的材料的折射返回到与原始传播方向相反的纵向传播路径。纤维部分的每个端部附接到由具有相对于彼此的这种热膨胀系数的材料制成的两个补偿部件中的不同的一个，并且纤维材料的纤维材料应用于纤维纵向应变，其幅度随着温度，使得由于纵向应变的变化引起的中心波长的变化基本上补偿了由光栅的温度变化引起的变化。

2. 发明授权

US4748686A Coherence multiplexed optical position transducer 失效
标题翻译：相干多路复用光学位置传感器
公开(公告)号：US4748686A
公开(公告)日：1988-05-31
申请号：US919274
申请日：1986-10-15
申请人： Walter L. Glomb
发明人： Walter L. Glomb
IPC分类号： G01D5/26 , H04J14/00 , H04J14/08 , H04B9/00
CPC分类号： G01D5/268 , H04J14/08 , H04J14/002
摘要： An optical fiber transducer system employs a single optical fiber that carries an optical carrier signal to a remote transducer location and also carries a multiplexed multichannel signal, each channel having a characteristic delay and a binary amplitude value, to a receiving unit, where each channel of a set of reference signals having a corresponding characteristic delay interferes with the multiplexed signal to separate a channel signal that is envelope detected.
摘要翻译：光纤传感器系统采用将光载波信号传送到远程传感器位置的单一光纤，并且还将具有特征延迟和二进制振幅值的多路复用多信道信号传送到接收单元，其中每个信道具有对应的特征延迟的一组参考信号与多路复用的信号相互干扰，以分离被检测的包络的信道信号。

3. 发明授权

US5077816A Fiber embedded grating frequency standard optical communication devices 失效
标题翻译：光纤嵌入式频率标准光通信设备
公开(公告)号：US5077816A
公开(公告)日：1991-12-31
申请号：US457044
申请日：1989-12-16
申请人： Walter L. Glomb , Frederick J. Leonberger
发明人： Walter L. Glomb , Frederick J. Leonberger
IPC分类号： G02B6/293 , G02F1/01 , G02F2/00 , H01S5/0687 , H04B10/04 , H04B10/155 , H04B10/20 , G02B6/34 , H01S3/10 , H04J1/00
CPC分类号： H04B10/572 , H01S5/0687 , H04B10/503 , H04B10/506
摘要： A narrowband laser source includes an optical fiber section including a core centered on a longitudinal axis and a cladding surounding the core, and having a grating region embedded in the core. The grating region includes a multitude of Bragg grating elements extending with a substantially equal longitudinal spacing substantially normal to the longitudinal axis for the grating region to significantly reduce the amount of light passing therethrough when the frequency of such light is in a predetermined narrow range around and including a predetermined center frequency, to an extent proportionate to the deviation of such frequency from the center frequency. A portion of the light emitted by a laser at a frequency dependent on the amount of electric energy applied to the laser is supplied into the core of the fiber section for propagation toward the grating region. The amount of light passing through the grating region is detected, and the amount of energy applied to the laser is varied in dependence on the extent of deviation of the frequency of such light from the center frequency in such a sense as to reduce the extent of such deviation.

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