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公开(公告)号：US20040246477A1
公开(公告)日：2004-12-09
申请号：US10800320
申请日：2004-03-11
Inventor： John A. Moon , James S. Sirkis , Ralph Jones , Charles R. Winston , David R. Fournier , Joseph Pinto , Robert N. Brucato , James R. Dunphy , Christopher J. Chestnut
IPC: G01J003/00 , G01J003/42
CPC classification number: G01J3/06 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/021 , G01J3/0218 , G01J3/0256 , G01J3/0291 , G01J3/18 , G01J3/28 , G01J3/32 , G01J3/36 , G01J2003/064 , G01J2003/1819 , G02B6/2931 , G02B6/4215 , H04B10/077 , H04B10/07955 , H04Q2011/0026 , H04Q2011/0049 , H04Q2011/0083
Abstract: An optical spectrum analyzer (OSA) 10 sequentially or selectively samples (or filters) a spectral band(s) 11 of light from a broadband optical input signal 12 and measures predetermined optical parameters of the optical signal (e.g., spectral profile) of the input light 12. The OSA 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates or spreads spatially the collimated input light, and reflects the dispersed light onto the mirror 22. A null/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the null/4 plate 26 to the diffraction grating 20, which reflects the light back through the collimating lens 18. The lens 18 focuses spectral bands of light (null1-nullN) at different focal points in space. One of the spectral bands 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each spectral band 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.
Abstract translation: 光谱分析仪（OSA）10顺序地或选择性地从宽带光输入信号12采样（或滤波）光谱带11，并且测量输入的光信号的光学参数（例如，光谱分布） OSA 10是自由空间光学装置，其包括准直器组件15，衍射光栅20和反射镜22.发射尾纤通过准直器组件15将信号发射到自由空间中，并将其输入到衍射光栅20上 ，其在空间上分离或扩展准直的输入光，并将分散的光反射到反射镜22上.λ/ 4板26设置在反射镜22和衍射光栅20之间。反射镜将分离的光反射回λ/ 4板26连接到衍射光栅20，其通过准直透镜18反射光。透镜18将光（λ1-λN）的光谱带聚焦在空间中的不同焦点处。 光谱带11中的一个聚焦在接收引线28上，接收引线28然后传播到光电检测器30.枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22，以顺序地或选择性地将每个光谱带11聚焦到 接收尾纤28.位置传感器42检测衍射光栅24或反射镜的位移。
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公开(公告)号：US07253897B2
公开(公告)日：2007-08-07
申请号：US10800320
申请日：2004-03-11
Applicant: John A. Moon , James S. Sirkis , Ralph Jones , Charles R. Winston , David R. Fournier , Joseph Pinto , Robert N. Brucato , James R. Dunphy , Christopher J. Chestnut
Inventor： John A. Moon , James S. Sirkis , Ralph Jones , Charles R. Winston , David R. Fournier , Joseph Pinto , Robert N. Brucato , James R. Dunphy , Christopher J. Chestnut
CPC classification number: G01J3/06 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/021 , G01J3/0218 , G01J3/0256 , G01J3/0291 , G01J3/18 , G01J3/28 , G01J3/32 , G01J3/36 , G01J2003/064 , G01J2003/1819 , G02B6/2931 , G02B6/4215 , H04B10/077 , H04B10/07955 , H04Q2011/0026 , H04Q2011/0049 , H04Q2011/0083
Abstract: An optical spectrum analyzer (OSA) 10 sequentially or selectively samples (or filters) a spectral band(s) 11 of light from a broadband optical input signal 12 and measures predetermined optical parameters of the optical signal (e.g., spectral profile) of the input light 12. The OSA 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates or spreads spatially the collimated input light, and reflects the dispersed light onto the mirror 22. A λ/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the λ/4 plate 26 to the diffraction grating 20, which reflects the light back through the collimating lens 18. The lens 18 focuses spectral bands of light (λ1–λN) at different focal points in space. One of the spectral bands 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each spectral band 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.
Abstract translation: 光谱分析仪（OSA）10顺序地或选择性地从宽带光输入信号12采样（或滤波）光谱带11，并且测量输入的光信号的光学参数（例如，光谱分布） 光12。 OSA 10是包括准直器组件15，衍射光栅20和反射镜22的自由空间光学装置。 发射尾纤通过准直器组件15将输入信号发射到自由空间中，并在衍射光栅20上分散或扩展空间上准直的输入光，并将分散的光反射到反射镜22上。 λ/ 4板26设置在反射镜22和衍射光栅20之间。 反射镜通过λ/ 4板26将分离的光反射回到衍射光栅20，衍射光栅20将光反射通过准直透镜18。 透镜18在空间中的不同焦点处聚焦光的光谱带（λ1 SUB-N N N）。 光谱带11中的一个聚焦在接收尾纤28上，接收引线28然后传播到光电检测器30。 枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22，以顺序地或选择性地将每个光谱带11聚焦到接收尾纤28。 位置传感器42检测衍射光栅24或反射镜的位移。
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公开(公告)号：US07463828B2
公开(公告)日：2008-12-09
申请号：US10159370
申请日：2002-05-31
Applicant: John Moon , Ralph Jones , Charles Winston , James Sirkis , David Fournier , Joseph Pinto , Robert Brucato , James Dunphy , Christopher Chestnut
Inventor： John Moon , Ralph Jones , Charles Winston , James Sirkis , David Fournier , Joseph Pinto , Robert Brucato , James Dunphy , Christopher Chestnut
CPC classification number: G01J3/28 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/021 , G01J3/0218 , G01J3/0256 , G01J3/0291 , G01J3/06 , G01J3/32 , G01J3/36 , G01J2003/064 , G01J2003/1819 , G02B6/2706 , G02B6/2793 , G02B6/2931 , G02B6/29313 , G02B6/29314 , G02B6/29385 , G02B6/29398 , G02B6/3512 , G02B6/359 , G02B6/4215 , G02B6/4246 , H04B10/077 , H04B10/07955 , H04Q2011/0026 , H04Q2011/0049 , H04Q2011/0083
Abstract: An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) 11 of light from a (WDM) optical input signal 12 and senses predetermined parameters of the each filtered optical signal (e.g., channel power, channel presence, signal-noise-ratio). The OCM 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates spatially each of the optical channels 11 of the collimated light, and reflects the separated channels of light onto the mirror 22. A λ/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the λ/4 plate 26 to the diffraction grating 20, which reflects the channels of light back through the collimating lens 18. The lens 18 focuses each separated channel of light (λ1-λN) at a different focal point in space. One of the optical channels 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each optical channel 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.
Abstract translation: 提供了一种光通道监视器，其顺序地或选择性地对来自（WDM）光输入信号12的光的通道11进行滤波，并且感测每个滤波的光信号的预定参数（例如，信道功率，信道存在， 噪声比）。 OCM 10是包括准直器组件15，衍射光栅20和反射镜22的自由空间光学装置。发射尾纤通过准直器组件15和衍射光栅20将衍射光栅20发射到自由空间中，输入信号分离 准直光的每个光通道11，并将分离的光反射到反射镜22上.λ/ 4板26设置在反射镜22和衍射光栅20之间。反射镜将分离的光反射回 λ/ 4板26到衍射光栅20，其反射通过准直透镜18的光通道。透镜18将每个分离的光（λ1-λN）通道在空间中的不同焦点处聚焦。 光通道11中的一个被聚焦到接收引线28上，接收引线28然后传播到光电检测器30.枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22，以顺序地或选择性地将每个光通道11聚焦到 接收尾纤28.位置传感器42检测衍射光栅24或反射镜的位移。
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公开(公告)号：US20030007148A1
公开(公告)日：2003-01-09
申请号：US10159370
申请日：2002-05-31
Inventor： John Moon , Ralph Jones , Charles Winston , James Sirkis , David Fournier , Joseph Pinto , Robert Brucato , James Dunphy , Christopher Chestnut
IPC: G01J003/28 , G01J003/18
CPC classification number: G01J3/28 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/021 , G01J3/0218 , G01J3/0256 , G01J3/0291 , G01J3/06 , G01J3/32 , G01J3/36 , G01J2003/064 , G01J2003/1819 , G02B6/2706 , G02B6/2793 , G02B6/2931 , G02B6/29313 , G02B6/29314 , G02B6/29385 , G02B6/29398 , G02B6/3512 , G02B6/359 , G02B6/4215 , G02B6/4246 , H04B10/077 , H04B10/07955 , H04Q2011/0026 , H04Q2011/0049 , H04Q2011/0083
Abstract: An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) 11 of light from a (WDM) optical input signal 12 and senses predetermined parameters of the each filtered optical signal (e.g., channel power, channel presence, signal-noise-ratio). The OCM 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates spatially each of the optical channels 11 of the collimated light, and reflects the separated channels of light onto the mirror 22. A null/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the null/4 plate 26 to the diffraction grating 20, which reflects the channels of light back through the collimating lens 18. The lens 18 focuses each separated channel of light (null1-nullN) at a different focal point in space. One of the optical channels 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each optical channel 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.
Abstract translation: 提供了一种光通道监视器，其顺序地或选择性地对来自（WDM）光输入信号12的光的通道11进行滤波，并且感测每个滤波的光信号的预定参数（例如，信道功率，信道存在， 噪声比）。 OCM 10是包括准直器组件15，衍射光栅20和反射镜22的自由空间光学装置。发射尾纤通过准直器组件15和衍射光栅20将衍射光栅20发射到自由空间中，输入信号分离 准直光的每个光通道11，并将分离的光通道反射到反射镜22上。在反射镜22和衍射光栅20之间设置有羔羊/ 4板26。反射镜将分离的光反射回 骰子/ 4板26到衍射光栅20，其反射通过准直透镜18的光通道。透镜18将每个分离的光通道（lambd1-lambdN）聚焦在空间中的不同焦点处。 光通道11中的一个被聚焦到接收引线28上，接收引线28然后传播到光电检测器30.枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22，以顺序地或选择性地将每个光通道11聚焦到 接收尾纤28.位置传感器42检测衍射光栅24或反射镜的位移。
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Patent Agency Ranking
公开(公告)号：US08203789B1
公开(公告)日：2012-06-19
申请号：US12325937
申请日：2008-12-01
Applicant: Massimo Martinelli , Long Yang , Jeffrey E. Ehrlich , Mark H. Garrett
Inventor： Massimo Martinelli , Long Yang , Jeffrey E. Ehrlich , Mark H. Garrett
CPC classification number: G01J3/14 , G01J3/18 , G01J2003/1819 , G02B5/04 , G02B5/1814
Abstract: An optical assembly for double passing a transmission grating may include a prism having first, second and third surfaces. A transmission grating may be bonded to the first surface. A first mirror coating may be bonded to the second surface and a second mirror coating to the third surface. The first, second and third surfaces, the transmission grating and the first and second mirror coatings are configured such that light of a predetermined wavelength entering the prism that is incident on the transmission grating is diffracted a first time by the transmission grating towards the second surface, reflected from the second surface to the third surface, reflected from the third surface back to the transmission grating, and diffracted a second time by the transmission grating as the light exits the prism.
Abstract translation: 用于双重通过透射光栅的光学组件可以包括具有第一，第二和第三表面的棱镜。 透射光栅可以结合到第一表面。 可以将第一镜面涂层粘合到第二表面，并将第二镜面涂覆到第三表面。 第一表面，第二表面和第三表面，透射光栅和第一和第二镜面涂层被配置为使得入射到透射光栅上的进入棱镜的预定波长的光首先被透射光栅朝向第二表面衍射 从第二表面反射到第三表面，从第三表面反射回传输光栅，并且当光离开棱镜时由传输光栅第二次衍射。
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公开(公告)号：US20050073679A1
公开(公告)日：2005-04-07
申请号：US10625528
申请日：2003-07-24
Applicant: Gang He , Daniel Gariepy
Inventor： Gang He , Daniel Gariepy
CPC classification number: G01J3/02 , G01J3/0202 , G01J3/021 , G01J3/0224 , G01J3/0294 , G01J3/18 , G01J2003/1819
Abstract: A dual-channel, double-filtering, multi-pass OSA having a narrow spectral linewidth response and high ORR comprises a diffraction grating (DG), two input ports (P1′, P1″) for directing first and second input light beams (LR, LT) onto the grating; a retroreflector (RAM1) for returning the dispersed light beams to the grating for dispersion again; two intermediate output ports (P2′, P2″) for receiving the twice-dispersed light beams; two secondary input ports (P3′, P3″) coupled to the intermediate output ports by polarization-maintaining waveguides (PMF2′, PMF2″) for directing the light beams onto the grating a third time, with their SOPs having a predetermined orientation relative to the SOPs of the first and second light beams when first incident upon the grating, the retroreflector (RAM1) returning the three-times-dispersed light beams to the grating for dispersion a fourth time; and two output ports (P4′, P4″) for receiving the light beams after dispersion the fourth time.
Abstract translation: 具有窄光谱线宽响应和高ORR的双通道双滤波多通道OSA包括衍射光栅（DG），用于引导第一和第二输入光束的两个输入端口（P1'，P1“） LR，LT）到光栅上; 用于将分散的光束返回到光栅以用于再分散的后向反射器（RAM1）; 用于接收两倍分散光束的两个中间输出端口（P2'，P2“）; 通过偏振保持波导（PMF2'，PMF2“）耦合到中间输出端口的用于将光束第三次引导到光栅上的两个次级输入端口（P3'，P3”），其SOP具有预定方向 相对于第一和第二光束在第一次入射到光栅时的SOP，后向反射器（RAM1）将三次分散的光束第四次返回到光栅分散; 以及用于在第四次分散之后接收光束的两个输出端口（P4'，P4“）。
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公开(公告)号：US06930776B2
公开(公告)日：2005-08-16
申请号：US10625528
申请日：2003-07-24
Applicant: Gang He , Daniel Gariépy
Inventor： Gang He , Daniel Gariépy
CPC classification number: G01J3/02 , G01J3/0202 , G01J3/021 , G01J3/0224 , G01J3/0294 , G01J3/18 , G01J2003/1819
Abstract: A dual-channel, double-filtering, multi-pass OSA having a narrow spectral linewidth response and high ORR comprises a diffraction grating (DG), two input ports (P1′, P1″) for directing first and second input light beams (LR, LT) onto the grating; a retroreflector (RAM1) for returning the dispersed light beams to the grating for dispersion again; two intermediate output ports (P2′, P2″) for receiving the twice-dispersed light beams; two secondary input ports (P3′, P3″) coupled to the intermediate output ports by polarization-maintaining waveguides (PMF2′, PMF2″) for directing the light beams onto the grating a third time, with their SOPs having a predetermined orientation relative to the SOPs of the first and second light beams when first incident upon the grating, the retroreflector (RAM1) returning the three-times-dispersed light beams to the grating for dispersion a fourth time; and two output ports (P4′, P4″) for receiving the light beams after dispersion the fourth time.
Abstract translation: 具有窄光谱线宽响应和高ORR的双通道双滤波多通道OSA包括衍射光栅（DG），用于引导第一和第二输入光的两个输入端口（P 1'，P 1“） 光束（LR，LT）到光栅上; 用于将分散的光束返回到光栅以用于再次分散的后向反射器（RAM1）; 用于接收两倍分散光束的两个中间输出端口（P 2'，P 2“）; 通过偏振保持波导（PMF 2'，PMF 2“）耦合到中间输出端口的用于将光束第三次引导到光栅上的两个次级输入端口（P 3'，P 3”），其SOP 当第一次入射到光栅上时，具有相对于第一和第二光束的SOP的预定取向，后向反射器（RAM1）将三次分散的光束第四次返回到光栅以进行分散; 以及用于在第四次分散之后接收光束的两个输出端口（P 4'，P 4“）。
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8.发明授权
公开(公告)号：US5359409A
公开(公告)日：1994-10-25
申请号：US98559
申请日：1993-07-28
Applicant: Kenneth R. Wildnauer , James R. Stimple , John D. Knight , Joseph N. West , Barry G. Broome
Inventor： Kenneth R. Wildnauer , James R. Stimple , John D. Knight , Joseph N. West , Barry G. Broome
CPC classification number: G01J3/18 , G01J2003/062 , G01J2003/069 , G01J2003/1819 , G01J2003/1828 , G01J3/0221 , G01J3/2889
Abstract: A double-pass scanning monochromator for use in an optical spectrum analyzer includes an input optical fiber for emitting an input light beam, a diffraction grating for diffracting the input light beam to produce a spatially dispersed light beam, a slit for passing a selected portion of the dispersed light beam, a motor for rotating the diffraction grating, a shaft angle encoder for sensing grating position, and an output optical fiber. The light that passes through the slit is directed to the diffraction grating and is recombined by the diffraction grating to produce an output light beam. The light beam to be analyzed is incident on the diffraction grating during first and second passes. A polarization rotation device rotates the polarization components of the light beam by 90.degree. between the first and second passes so that the output of the monochromator is independent of the polarization of the input light beam. The output optical fiber is translated by a micropositioning assembly in a plane perpendicular to the output light beam during rotation of the diffraction grating to automatically track the output light beam and to provide optical chopping.
Abstract translation: 用于光谱分析仪的双通扫描单色仪包括用于发射输入光束的输入光纤，用于衍射输入光束以产生空间分散的光束的衍射光栅，用于使所选择的部分通过的狭缝 分散的光束，用于旋转衍射光栅的电动机，用于感测光栅位置的轴角编码器和输出光纤。 通过狭缝的光被引导到衍射光栅，并且被衍射光栅重新组合以产生输出光束。 要分析的光束在第一次和第二次通过期间入射到衍射光栅上。 偏振旋转装置在第一和第二遍之间使光束的偏振分量旋转90°，使得单色仪的输出与输入光束的偏振无关。 在衍射光栅旋转期间，输出光纤由垂直于输出光束的平面中的微定位组件平移，以自动跟踪输出光束并提供光学切割。
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公开(公告)号：US5233405A
公开(公告)日：1993-08-03
申请号：US788444
申请日：1991-11-06
Applicant: Kenneth R. Wildnauer , James R. Stimple , John D. Knight , Joseph N. West , Barry G. Broome
Inventor： Kenneth R. Wildnauer , James R. Stimple , John D. Knight , Joseph N. West , Barry G. Broome
CPC classification number: G01J3/18 , G01J2003/062 , G01J2003/069 , G01J2003/1819 , G01J2003/1828 , G01J3/0221 , G01J3/2889
Abstract: A double pass scanning monochromator for use in an optical spectrum analyzer includes an input optical fiber for emitting an input light beam, a diffraction grating for diffracting the input light beam to produce a spatially dispersed light beam, a slit for passing a selected portion of the dispersed light beam, a motor for rotating the diffraction grating, a shaft angle encoder for sensing grating position, and an output optical fiber. The light that passes through the slit is directed to the diffraction grating and is recombined by the diffraction grating to produce an output light beam. The light beam to be analyzed is incident on the diffraction grating during first and second passes. A polarization rotation device rotates the polarization components of the light beam by 90.degree. between the first and second passes so that the output of the monochromator is independent of the polarization of the input light beam. The output optical fiber is translated by a micropositioning assembly in a plane perpendicular to the output light beam during rotation of the diffraction grating to automatically track the output light beam and to provide optical chopping.
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