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公开(公告)号：US5965877A
公开(公告)日：1999-10-12
申请号：US39591
申请日：1998-03-16
CPC分类号： F42B3/113 , G01D5/268 , G01K11/3213 , G01M11/31 , G01M11/3109
摘要： A built-in-test capability is provided for determining the integrity of an optical fiber connecting: (a) an optical firing unit having a primary light source emitting a first wavelength, a test light source emitting a second wavelength different from the first wavelength, a mechanism both for coupling light from the light sources to the optical fiber and also for coupling the return light to a detector; and (b) an optically-initiated device which is coupled to a second end of the optical fiber. The apparatus includes a photoluminescent material disposed at a junction of the optically-initiated device and the second end of the optical fiber. In test mode, this photoluminescent material is exposed to the test light source, which results in photoluminescence at a third wavelength. The photoluminescent light travels through the optical fiber to the detector, and when detected indicates optical fiber continuity. The present system can also measure the temperature at the distal end of the optical fiber by detecting changes in the peak wavelength or amplitude associated with the third wavelength as a function of temperature. When the system is used to initiate ordnance, the detector can also detect the initial flash of light produced by the ordnance to provide confirmation that the ordnance has ignited.
摘要翻译： 提供了内置测试能力，用于确定光纤的完整性，其连接：（a）具有发射第一波长的初级光源的光学激发单元，发射不同于第一波长的第二波长的测试光源， 用于将来自光源的光耦合到光纤并且还用于将返回光耦合到检测器的机构; 和（b）耦合到光纤的第二端的光学起始装置。 该装置包括设置在光引发装置和光纤的第二端的结处的光致发光材料。 在测试模式下，该光致发光材料暴露于测试光源，这导致第三波长的光致发光。 光致发光光通过光纤传播到检测器，当被检测到时表示光纤的连续性。 本系统还可以通过检测作为温度的函数的与第三波长相关联的峰值波长或振幅的变化来测量光纤远端处的温度。 当系统用于启动弹药时，检测器还可以检测由弹药产生的光的初始闪光，以提供军药点燃的确认。
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公开(公告)号：US5729012A
公开(公告)日：1998-03-17
申请号：US739641
申请日：1996-10-30
CPC分类号： G01M11/3109 , F42B3/113 , G01D5/268 , G01K11/3213 , G01M11/31
摘要： A built-in-test capability is provided for determining the integrity of an optical fiber connecting: (a) an optical firing unit having a primary light source emitting a first wavelength, a test light source emitting a second wavelength different from the first wavelength, a mechanism both for coupling light from the light sources to the optical fiber and also for coupling the return light to a detector; and (b) an optically-initiated device which is coupled to a second end of the optical fiber. The apparatus includes a photoluminescent material disposed at a junction of the optically-initiated device and the second end of the optical fiber. In test mode, this photoluminescent material is exposed to the test light source, which results in photoluminescence at a third wavelength. The photoluminescent light travels through the optical fiber to the detector, and when detected indicates optical fiber continuity. When the system is used to initiate ordnance, the detector can also detect the initial flash of light produced by the ordnance to provide confirmation that the ordnance has ignited.
摘要翻译： 提供了内置测试能力，用于确定光纤的完整性，其连接：（a）具有发射第一波长的初级光源的光学激发单元，发射不同于第一波长的第二波长的测试光源， 用于将来自光源的光耦合到光纤并且还用于将返回光耦合到检测器的机构; 和（b）耦合到光纤的第二端的光学起始装置。 该装置包括设置在光引发装置和光纤的第二端的结处的光致发光材料。 在测试模式下，该光致发光材料暴露于测试光源，这导致第三波长的光致发光。 光致发光光通过光纤传播到检测器，当被检测到时表示光纤的连续性。 当系统用于启动弹药时，检测器还可以检测由弹药产生的光的初始闪光，以提供军药点燃的确认。
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公开(公告)号：US06704480B2
公开(公告)日：2004-03-09
申请号：US10347642
申请日：2003-01-21
申请人： Terrance L. Worchesky , Lance A. Wood , Feng Liu
发明人： Terrance L. Worchesky , Lance A. Wood , Feng Liu
IPC分类号： G02B634
CPC分类号： G02B6/124 , G02B6/12002 , G02B6/12004 , G02B6/12007 , G02B2006/12107 , G02B2006/12121 , G02B2006/12123
摘要： A demultiplexer is disclosed. The demultiplexer incorporates a reflective grating that is associated with a first waveguide through which a multiplexed optical signal may be transmitted. Individual wavelengths of light that have been reflected by the reflective grating are able to pass through a barrier layer which separates the first waveguide from a second waveguide. A plurality of photodetectors are associated with the second waveguide to read out the individual, wavelength-specific optical signals. The reflective grating is preferably formed on a surface of the first waveguide which projects away from the second waveguide, while the photodetectors are preferably formed at least in part by processing a surface of the second waveguide that projects away from the first waveguide. Both polarities of light are preferably accounted for/collected by the grating as well.
摘要翻译： 公开了解复用器。 解复用器包括与第一波导相关联的反射光栅，通过该第一波导可以传输复用的光信号。 已经被反射光栅反射的各个波长的光能够通过将第一波导与第二波导分离的阻挡层。 多个光电检测器与第二波导相关联以读出单独的波长特定光信号。 反射光栅优选地形成在远离第二波导的第一波导的表面上，而光电探测器优选地至少部分地通过处理突出于第一波导的第二波导的表面形成。 光的两极性优选也由光栅考虑/收集。
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公开(公告)号：US06549708B2
公开(公告)日：2003-04-15
申请号：US09923168
申请日：2001-08-06
申请人： Terrance L. Worchesky , Lance A. Wood , Feng Liu
发明人： Terrance L. Worchesky , Lance A. Wood , Feng Liu
IPC分类号： G02B634
CPC分类号： G02B6/124 , G02B6/12002 , G02B6/12004 , G02B6/12007 , G02B2006/12107 , G02B2006/12121 , G02B2006/12123
摘要： A demultiplexer is disclosed. The demultiplexer incorporates a reflective grating that is associated with a first waveguide through which a multiplexed optical signal may be transmitted. Individual wavelengths of light that have been reflected by the reflective grating are able to pass through a barrier layer which separates the first waveguide from a second waveguide. A plurality of photodetectors are associated with the second waveguide to read out the individual, wavelength-specific optical signals. The reflective grating is preferably formed on a surface of the first waveguide which projects away from the second waveguide, while the photodetectors are preferably formed at least in part by processing a surface of the second waveguide that projects away from the first waveguide. Both polarities of light are preferably accounted for/collected by the grating as well.
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公开(公告)号：US06731840B2
公开(公告)日：2004-05-04
申请号：US10314787
申请日：2002-12-09
IPC分类号： G02B634
CPC分类号： G02B6/124 , G02B6/12002 , G02B6/12004 , G02B6/12007 , G02B2006/12107 , G02B2006/12121 , G02B2006/12123
摘要： An optical switch is disclosed having what may be characterized as an optically-induced grating. One embodiment of such an optical switch includes first and second waveguides. An optical mask is formed on a side of the first waveguide opposite that which faces the second waveguide. Multiple slits exist in this optical mask in alignment with an output from a light source. Changing the mode of this light force changes the output of the light source directed onto the slits, and changes the state of the first and second waveguides from being optically decoupled to optically coupled.
摘要翻译： 公开了具有可以被表征为光学感应光栅的光开关。 这种光开关的一个实施例包括第一和第二波导。 光学掩模形成在与第二波导相对的第一波导的一侧。 在该光学掩模中存在与光源的输出对准的多个狭缝。 改变该光力的模式改变了被引导到狭缝上的光源的输出，并且使第一和第二波导的状态从光学解耦到光学耦合。
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公开(公告)号：US5572016A
公开(公告)日：1996-11-05
申请号：US428377
申请日：1995-04-25
CPC分类号： G01M11/31 , F42B3/113 , G01D5/268 , G01K11/3213
摘要： A built-in-test capability is provided for determining the integrity of an optical fiber connecting: (a) an optical firing unit having a primary light source emitting a first wavelength, a test light source emitting a second wavelength different from the first wavelength, a mechanism both for coupling light from the light sources to the optical fiber and also for coupling the return light to a filter/detector; and (b) an optically initiated device which is coupled to a second end of the optical fiber. The apparatus includes a photoluminescent material disposed at a junction of the optically initiated device and the optical-fiber-second-end. This photoluminescence material photoluminesces at a third wavelength (when exposed to the test light source), and the light travels through the optical fiber and, when detected indicates optical fiber continuity.
摘要翻译： 提供了内置测试能力，用于确定光纤的完整性，其连接：（a）具有发射第一波长的初级光源的光学激发单元，发射不同于第一波长的第二波长的测试光源， 用于将来自光源的光耦合到光纤并且还用于将返回光耦合到滤波器/检测器的机构; 和（b）耦合到光纤的第二端的光学启动器件。 该装置包括设置在光引发装置和光纤二端的连接处的光致发光材料。 该光致发光材料以第三波长（当暴露于测试光源时）照射光，并且光穿过光纤，并且当检测到时指示光纤连续性。
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