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1. 发明授权

US06819429B2 Multi-pass optical spectrum analyzer having a polarization-dependent tunable filter 失效
标题翻译：具有偏振相关可调滤波器的多通光谱分析仪
公开(公告)号：US06819429B2
公开(公告)日：2004-11-16
申请号：US09827141
申请日：2001-04-06
申请人： Gang He , Daniel Gariépy , Gregory Walter Schinn , Martin Lamonde
发明人： Gang He , Daniel Gariépy , Gregory Walter Schinn , Martin Lamonde
IPC分类号： G01B902
CPC分类号： G02B5/3025
摘要： A polarization independent optical spectrum analyzer comprises an inherently polarization sensitive angle-tuned filter element and polarization-maintaining multi-pass optics for directing a light beam to and fro through the tunable filter element while maintaining its linear state of polarization. The optical spectrum analyzer comprises such a tunable optical filter in combination with a polarization control unit for decomposing a light beam for analysis into first and second beams having mutually orthogonal states of polarization (SOPs) and then adjusting one or both SOPs so that they are parallel to each other and to one of the principal axes of the angle-tuned filter which selects different wavelengths of the first and second light beams. The first and second light beams are passed through the filter repeatedly by multi-pass polarization-maintaining optics.
摘要翻译：偏振无关光谱分析仪包括固有偏振敏感角度调谐滤波器元件和偏振保持多通道光学器件，用于在保持其线性极化状态的同时引导光束通过可调滤波器元件。光谱分析仪包括与偏振控制单元组合的这种可调谐光学滤波器，用于将用于分析的光束分解成具有相互正交的偏振态（SOP）的第一和第二光束，然后调整一个或两个SOP，使得它们是平行的并且与角度调谐滤波器的主轴中的一个相对应，其选择第一和第二光束的不同波长。第一和第二光束通过多通道偏振保持光学器件重复地通过滤光器。

2. 发明授权

US07116848B2 Optical spectrum analyzer using a diffraction grating and multi-pass optics 有权
$Optical spectrum analyzer using a diffraction grating and multi-pass optics$
标题翻译：光谱分析仪采用衍射光栅和多通道光学
公开(公告)号：US07116848B2
公开(公告)日：2006-10-03
申请号：US10986833
申请日：2004-11-15
申请人： Gang He , Daniel Gariépy , Gregory Walter Schinn
发明人： Gang He , Daniel Gariépy , Gregory Walter Schinn
IPC分类号： G02B6/00 , G02B6/34 , G02B5/30 , G02B27/28 , G01J3/28
CPC分类号： G02B5/3025
摘要： A polarization independent optical spectrum analyzer comprises a diffraction grating, input and output slit means and polarization-maintaining multi-pass optics for directing a light beam to and fro across the diffraction grating while maintaining its linear state of polarization. The optical spectrum analyzer further comprises a polarization control unit for decomposing a light beam for analysis into first and second beams having mutually orthogonal states of polarization (SOPs) and then adjusting one or both SOPs so that they are parallel to each other and to one of the dispersion plane of the diffraction grating which is rotated to select different wavelengths of the first and second light beams. The first and second light beams are passed across the diffraction grating repeatedly by multi-pass polarization-maintaining optics and are outputted and detected separately.
摘要翻译：偏振无关光谱分析仪包括衍射光栅，输入和输出狭缝装置和偏振保持多通道光学器件，用于引导光束穿过衍射光栅，同时保持其线性极化状态。光谱分析仪还包括：偏振控制单元，用于将用于分析的光束分解成具有相互正交偏振态（SOP）的第一和第二光束，然后调整一个或两个SOP，使得它们彼此平行并且与衍射光栅的色散平面被旋转以选择第一和第二光束的不同波长。第一和第二光束通过多通道偏振保持光学器件反复穿过衍射光栅，并分别输出和检测。

3. 发明授权

US06636306B2 Optical spectrum analyzer 有权
标题翻译：光谱分析仪
公开(公告)号：US06636306B2
公开(公告)日：2003-10-21
申请号：US09753673
申请日：2001-01-04
申请人： Gang He , Daniel Gariépy , Gregory Walter Schinn
发明人： Gang He , Daniel Gariépy , Gregory Walter Schinn
IPC分类号： G01J328
CPC分类号： G01J3/447 , G01J3/12
摘要： An optical spectrum analyzer comprises a diffraction grating (DG), a polarization decomposing unit (PDM) for decomposing the input light beam into first and second light beams having mutually-perpendicular linear states of polarization, and two output ports (FP2/1, FP2/2) each for receiving from the grating, substantially exclusively, a respective one of the polarized light beams (LT, LR) after diffraction by the diffraction grating (DG). Each of the linearly-polarized light beams is directed onto the diffraction grating with its linear state of polarization at any prescribed angle to a corresponding plane of diffraction of the diffraction grating The arrangement is such that the state of polarization of the light beams, at any particular wavelength within an operating band of the analyzer remains substantially unchanged with respect to time, The analyzer also may have a reflector (RAM) for reflecting the light beams leaving the diffraction grating after diffraction a first time so as to return them to the diffraction grating for diffraction a second time.
摘要翻译：光谱分析仪包括衍射光栅（DG），用于将输入光束分解成具有相互垂直的极化状态的第一和第二光束的偏振分解单元（PDM）和两个输出端口（FP2 / 1，FP2 / 2），每个用于在衍射光栅（DG）衍射之后从光栅接收基本上仅相应的一个偏振光束（LT，LR）。每个线性偏振光束以与其衍射光栅的相应衍射平面成任意规定角度的线性极化状态被引导到衍射光栅上。这种布置使得光束的偏振状态分析仪的工作频带内的特定波长相对于时间保持基本不变。分析仪还可以具有用于在衍射之后第一次反射离开衍射光栅的光束的反射器（RAM），以便将它们返回到衍射光栅用于衍射第二次。

4. 发明授权

US07382810B2 Widely-tunable laser apparatus 失效
标题翻译：广泛可调的激光设备
公开(公告)号：US07382810B2
公开(公告)日：2008-06-03
申请号：US11652634
申请日：2007-01-12
申请人： Gang He , Daniel Gariépy , Hongxin Chen , François Babin
发明人： Gang He , Daniel Gariépy , Hongxin Chen , François Babin
IPC分类号： H01S3/10
CPC分类号： H01S3/083 , H01S5/141 , H01S5/4087
摘要： A widely-tunable laser apparatus comprises a plurality of tunable lasers having different ranges that overlap to encompass a desired operating range of wavelengths (for example from 1250 nm to 1650 nm) of the widely-tunable laser apparatus. The tunable lasers are tunable synchronously and selectively with their respective outputs connected in common to sweep the output of the widely-tunable laser apparatus substantially continuously over said operating range. The tunable lasers share the same tuning means which has a plurality of independent channels, each for light from a respective one of the tunable lasers.
摘要翻译：广泛可调谐的激光装置包括具有不同范围的多个可调激光器，其重叠以包含广泛可调激光装置的期望的波长（例如1250nm至1650nm）的工作范围。可调谐激光器可以同步和选择性地可调谐，其各自的输出共同连接，以在所述操作范围内基本连续地扫描广泛可调激光设备的输出。可调激光器共享相同的调谐装置，该调谐装置具有多个独立通道，每个独立通道用于来自可调激光器的相应一个的光。

5. 发明授权

US06930776B2 High optical rejection optical spectrum analyzer/monochromator 有权
标题翻译：高光抑制光谱分析仪/单色仪
公开(公告)号：US06930776B2
公开(公告)日：2005-08-16
申请号：US10625528
申请日：2003-07-24
申请人： Gang He , Daniel Gariépy
发明人： Gang He , Daniel Gariépy
IPC分类号： G01J3/18 , G01J3/28
CPC分类号： G01J3/02 , G01J3/0202 , G01J3/021 , G01J3/0224 , G01J3/0294 , G01J3/18 , G01J2003/1819
摘要： 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.
摘要翻译：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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