WO2022021747A1 - Optical signal detection system - Google Patents

Optical signal detection system Download PDF

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Publication number
WO2022021747A1
WO2022021747A1 PCT/CN2020/136539 CN2020136539W WO2022021747A1 WO 2022021747 A1 WO2022021747 A1 WO 2022021747A1 CN 2020136539 W CN2020136539 W CN 2020136539W WO 2022021747 A1 WO2022021747 A1 WO 2022021747A1
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Prior art keywords
optical
optical signal
lens
signals
signal detection
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PCT/CN2020/136539
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French (fr)
Chinese (zh)
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曾云
谢卉
李恒超
谢兰枧
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武汉光迅科技股份有限公司
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Publication of WO2022021747A1 publication Critical patent/WO2022021747A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2803—Investigating the spectrum using photoelectric array detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J2003/1204—Grating and filter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J2003/1265—Generating the spectrum; Monochromators the wavelengths being separated in time, e.g. through optical fibre array

Definitions

  • the present invention relates to the technical field of optical communication, in particular to an optical signal detection system.
  • the embodiments of the present application provide an optical signal detection system, which can realize effective detection of multi-channel optical signals.
  • the embodiment of the present application provides an optical signal detection system, the system includes:
  • a light source configured to generate a first optical signal in a first wavelength range
  • an optical splitting device configured to convert the first optical signal into a second optical signal of different wavelengths exiting at different angles
  • An optical signal detection device is configured to detect the energy of the second optical signals of different wavelengths.
  • the system further includes: a first lens
  • the first lens is disposed between the light source and the spectroscopic device, and is configured to convert a first optical signal in a first wavelength range generated by the light source into a parallel optical signal.
  • the system further includes: a second lens
  • the second lens is disposed between the spectroscopic device and the optical signal detection device, and is configured to converge the second optical signals of different wavelengths.
  • the optical parameters of the first lens and the second lens are the same.
  • the curvature of the first lens varies continuously along a direction from the center of the first lens to the edge of the first lens;
  • the curvature of the second lens changes continuously along the direction from the center of the second lens to the edge of the second lens.
  • the optical signal detection device comprises: an optical fiber array
  • Each optical fiber included in the optical fiber array is used for receiving second optical signals of different wavelengths, so as to detect the energy of the second optical signals of different wavelengths.
  • the optical signal detection device further includes:
  • an array of photodiodes configured to detect energy of the second optical signal of different wavelengths.
  • the photodiode array includes the same number of photodiodes as the fiber array includes optical fibers.
  • the optical signal detection device further includes:
  • An actuator configured to control the optical fiber array to move in a direction perpendicular to the direction in which the second optical signal is transmitted in the optical fiber array.
  • the optical signal detection device includes:
  • the line array light sensor is configured to perform optical integration on second light signals of different wavelengths received by different point sensors of the line array light sensor, and then convert them into effective photoelectric signals, and detect the energy of the effective photoelectric signals.
  • the optical signal detection system includes: a light source, configured to generate a first optical signal in a first wavelength range; Two optical signals; an optical signal detection device, configured to detect the energy of the second optical signal.
  • a light source configured to generate a first optical signal in a first wavelength range
  • Two optical signals configured to detect the energy of the second optical signal.
  • the first optical signal generated by the light source is in the first wavelength range and includes a first optical signal of multiple wavelengths
  • the first optical signal of multiple wavelengths can be converted to emit at different angles through the spectroscopic device second optical signals of different wavelengths, so that the optical signal detection device detects the energy of the second optical signals of different wavelengths; and realizes effective detection of multi-channel optical signals.
  • FIG. 1 is a schematic diagram of an optional structure of an optical signal detection system provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a relationship between the wavelength of the first optical signal and the transmittance curve of the filter coated with the first film layer according to the embodiment of the present application;
  • FIG. 3 is a schematic diagram of another optional structure of an optical signal detection system provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another optional structure of an optical signal detection system provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of an optical signal detection system in the related art.
  • Tunable Optical Filter An important device in modern intelligent optical network is Tunable Optical Filter (TOF).
  • TOF Tunable Optical Filter
  • the research and development of tunable optical filter is of great significance for flexible selection and dynamic monitoring of optical channels.
  • the tunable optical filter in the related art has problems such as complex structure and high cost.
  • An embodiment of the present application provides an optical signal detection system.
  • An optional structure of the optical signal detection system 100, as shown in FIG. 1, includes:
  • the light source 101 is configured to generate a first optical signal in a first wavelength range.
  • the optical signal generated by the light source 101 has a first wavelength range, that is, the first optical signal generated by the light source 101 is a first optical signal with a wide wavelength range.
  • the first optical signal generated by the light source 101 may be transmitted through an optical fiber.
  • the optical splitting device 102 is configured to convert the first optical signal into a second optical signal with different wavelengths exiting at different angles.
  • the function of the spectroscopic device 102 may be implemented by a grating.
  • the grating utilizes the principle of optical multi-slit diffraction to disperse the first optical signal incident on the grating, and converts the first optical signal with a wide wavelength range incident on the grating into different diffraction angles.
  • the parallel optical signals of different wavelengths emitted according to different diffraction angles are multi-channel optical signals.
  • the optical signal detection device 103 is configured to detect the energy of the second optical signals of different wavelengths.
  • the optical signal detection device 103 can detect the energy of the optical signals of each channel in the multi-channel optical signals.
  • the optical signal detection system 100 may further include: a first lens 104, the first lens 104 is disposed between the light source 101 and the spectroscopic device 102, and is configured to connect the light source 101 The generated diverging first optical signals of the first wavelength range are converted into parallel optical signals.
  • the first lens 104 may be an aspherical lens, and the curvature of the aspherical lens varies continuously along the direction from the center of the first lens to the edge of the first lens.
  • the optical signal detection system 100 may further include: a second lens 105, the second lens 105 is disposed between the spectroscopic device 102 and the optical signal detection device 103, and is configured to The second optical signals of different wavelengths are aggregated.
  • the second lens 105 may be an aspherical lens, and the curvature of the aspherical lens varies continuously along the direction from the center of the first lens to the edge of the second lens. After passing through the second lens 105, the parallel second optical signals of different wavelengths are focused on different positions on the focal plane of the second lens 105 according to the order of the wavelengths from large to small or from small to large.
  • the optical parameters of the first lens 104 and the second lens 105 are the same.
  • the optical parameters may at least include: curvature and/or focal length.
  • the optical signal detection device 103 includes an optical fiber array, and each optical fiber included in the optical fiber array is used to receive second optical signals of different wavelengths, so as to detect the energy of the second optical signals of different wavelengths.
  • a bundle of optical fibers is mounted on the array substrate using a V-groove
  • the optical fiber array is located on the focal plane of the second lens 105, and optical fibers at different positions on the optical fiber array are respectively used to receive second optical signals of different wavelengths.
  • the optical signal detection device 103 further includes: a photodiode array 107 for detecting the energy of the second optical signal with different wavelengths.
  • the number of fibers in the fiber array is the same as the number of photodiodes in the photodiode array; each fiber in the fiber array is connected to one photodiode in the photodiode array, and one photodiode is used for The energy of the second optical signal transmitted by the optical fiber connected thereto is detected.
  • the photodiode is a semiconductor device consisting of a PN junction configured to convert the received optical power of the second optical signal into an electrical current.
  • the optical signal detection system 100 further includes:
  • the actuator 106 is configured to control the optical fiber array to move in a direction perpendicular to the direction in which the second optical signal is transmitted in the optical fiber array.
  • the function of the transmission device 106 can be realized by a linear motor, the transmission device 106 converts electrical energy into mechanical energy of linear motion, and then drives the optical fiber array along the optical fiber with the second optical signal.
  • the direction of transmission in the array moves in the vertical direction.
  • the optical signal detection device 103 includes a line array light sensor, configured to perform optical integration on second light signals of different wavelengths received by different point sensors of the line array light sensor, and then convert them into effective photoelectricity signal, and detect the energy of the effective photoelectric signal.
  • the linear array optical sensor is a one-dimensional photoelectric sensor, which can perform optical integration on the second optical signal output by the optical fiber array to obtain effective optical signals corresponding to different wavelengths, and detect the effective optical signals of different wavelengths the energy of the signal.
  • the optical signal detection system includes: a light source 01, a first aspherical lens 04, grating 02, second aspheric lens 05 and fiber array 03.
  • the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths ⁇ 1 , ⁇ 2 , ⁇ 3 , . . . , ⁇ n ; the diverging optical signals are transmitted through the first
  • An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range.
  • the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. .
  • the parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
  • the optical fiber array 03 is located at the focal plane position of the second aspheric lens 05 , so that the optical fiber array 03 can receive the optical signal exiting through the second aspheric lens 05 . And each optical fiber in the optical fiber array 03 receives an optical signal of one wavelength emitted by the second aspherical lens 05, so that receiving optical signals of different wavelengths through different optical fibers can be used for wide-wavelength optical signals.
  • the separation of signals of different wavelengths realizes the function of a multi-channel optical filter.
  • the optical signal detection system includes: a light source 01 , a first aspherical lens 04 , a grating 02 , a second aspherical lens 05 , an optical fiber array 03 and a linear motor 06 .
  • the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths ⁇ 1 , ⁇ 2 , ⁇ 3 , . . . , ⁇ n ; the diverging optical signals are transmitted through the first
  • An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range.
  • the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. .
  • the parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
  • the optical fiber array 03 is located at the focal plane position of the second aspheric lens 05 , so that the optical fiber array 03 can receive the optical signal exiting through the second aspheric lens 05 . And each optical fiber in the optical fiber array 03 receives an optical signal of one wavelength emitted by the second aspherical lens 05, so that receiving optical signals of different wavelengths through different optical fibers can be used for wide-wavelength optical signals.
  • the separation of signals of different wavelengths realizes the function of a multi-channel optical filter.
  • the optical fiber array 03 is carried on the linear motor 06, so that the linear motor 06 can drive the optical fiber array 03 to move back and forth along the direction parallel to the focal plane of the second aspheric lens 05, so that the optical fiber array can be controlled Which fiber in 03 is used to receive which wavelength of optical signal.
  • the signals of different wavelengths in the wide-wavelength optical signal can be separated, and the optical fibers that receive the optical signals of different wavelengths can be selected, that is, the function of a multi-channel tunable optical filter can be realized.
  • the optical signal detection device including an optical fiber array, a linear motor, and a photodiode array, that is, a photodiode array is added on the basis of the optical signal detection system shown in FIG. 3 .
  • the optical signal detection system includes: a light source 01, a first aspherical lens 04, a grating 02, a second aspherical lens 05, an optical fiber array 03, a linear motor 06 and a photodiode array 07 .
  • the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths ⁇ 1 , ⁇ 2 , ⁇ 3 , . . . , ⁇ n ; the diverging optical signals are transmitted through the first
  • An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range.
  • the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. .
  • the parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
  • the optical fiber array 03 is located at the focal plane position of the second aspheric lens 05 , so that the optical fiber array 03 can receive the light signal exiting through the second aspheric lens 05 . And each optical fiber in the optical fiber array 03 receives an optical signal of one wavelength that is emitted through the second aspheric lens 05, so that receiving optical signals of different wavelengths through different optical fibers can be used for wide-wavelength optical signals.
  • the separation of signals of different wavelengths is to realize the function of multi-channel optical filter.
  • each fiber in fiber array 03 is connected to one photodiode in photodiode array 07, respectively.
  • the optical fiber array 03 is carried on the linear motor 06 , so that the linear motor 06 can drive the optical fiber array 03 to move back and forth along the direction parallel to the focal plane of the second aspheric lens 05 , by controlling the linear motor 06
  • the fast movement makes each fiber in the fiber array 03 quickly scan the optical signals of all wavelengths, and the optical signals are converted into electrical signals through the photodiode array 07 for spectral integration, thus realizing the multi-channel optical signal detection function .
  • the optical signal detection system includes: a light source 01, a first non- Spherical lens 04 , grating 02 , second aspherical lens 05 and linear light sensor 08 .
  • the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths ⁇ 1 , ⁇ 2 , ⁇ 3 , . . . , ⁇ n ; the diverging optical signals are transmitted through the first
  • An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range.
  • the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. .
  • the parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
  • the line array light sensor 08 is located at the focal plane position of the second aspherical lens 05 , so that the line array light sensor 08 can receive the light signal emitted through the second aspherical lens 05 . And each point light sensor in the line array light sensor 08 receives a light signal of one wavelength emitted through the second aspheric lens 05 , so that it is received by different point light sensors in the line array light sensor 08 Optical signals of different wavelengths can separate the signals of different wavelengths in the wide-wavelength optical signal, that is, to realize the function of a multi-channel optical filter.
  • the effective photoelectric signals After receiving the optical signals of different wavelengths by different point light sensors in the linear light sensor 08, the effective photoelectric signals are obtained through the optical integration pair, and then the spectral information of the full wavelength range can be obtained in real time, and the optical signal of a wide wavelength range can be obtained. detection.
  • the optical signal detection system provided in the embodiments of the present application can implement the functions of a multi-channel optical filter, a multi-channel tunable optical filter, multi-channel optical performance monitoring, and real-time optical performance monitoring.
  • the optical signal detection system provided by the embodiments of the present application has a simple optical path and various achievable functions; since the optical signal detection system provided by the embodiments of the present application has no moving parts, the performance of the optical signal detection system is stable.

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Abstract

An optical signal detection system, comprising: a light source (101), configured to generate a first optical signal in a first wavelength range; a light splitting apparatus (102), configured to convert the first optical signal into a second optical signal having a different wavelength and emitted at a different angle; an optical signal detection apparatus (103), configured to detect the energy of the second optical signal having a different wavelength.

Description

一种光信号检测系统An optical signal detection system
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请基于申请号为202010740641.6、申请日为2020年07月28日的中国专利申请提出，并要求中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。This application is based on the Chinese patent application with the application number of 202010740641.6 and the filing date of July 28, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is incorporated herein by reference.
技术领域technical field
本发明涉及光通信技术领域，尤其涉及一种光信号检测系统。The present invention relates to the technical field of optical communication, in particular to an optical signal detection system.
背景技术Background technique
随着智能光网络日新月异的发展及智能光网络应用范围的扩大，对于智能光网络中多通道光信号的有效检测，一直是光通信技术追求的目标。With the rapid development of intelligent optical networks and the expansion of the application scope of intelligent optical networks, the effective detection of multi-channel optical signals in intelligent optical networks has always been the goal pursued by optical communication technology.
发明内容SUMMARY OF THE INVENTION
本申请实施例提供一种光信号检测系统，能够实现对多通道光信号的有效检测。The embodiments of the present application provide an optical signal detection system, which can realize effective detection of multi-channel optical signals.
本申请实施例的技术方案是这样实现的：The technical solutions of the embodiments of the present application are implemented as follows:
本申请实施例提供一种光信号检测系统，所述系统包括：The embodiment of the present application provides an optical signal detection system, the system includes:
光源，配置为产生第一波长范围的第一光信号；a light source configured to generate a first optical signal in a first wavelength range;
分光装置，配置为将所述第一光信号转换为以不同角度出射的不同波长的第二光信号；an optical splitting device, configured to convert the first optical signal into a second optical signal of different wavelengths exiting at different angles;
光信号检测装置，配置为检测所述不同波长的第二光信号的能量。An optical signal detection device is configured to detect the energy of the second optical signals of different wavelengths.
在一些实施例中，所述系统还包括：第一透镜；In some embodiments, the system further includes: a first lens;
所述第一透镜设置于所述光源与所述分光装置之间，配置为将所述光源产生的第一波长范围的第一光信号转换为平行光信号。The first lens is disposed between the light source and the spectroscopic device, and is configured to convert a first optical signal in a first wavelength range generated by the light source into a parallel optical signal.
在一些实施例中，所述系统还包括：第二透镜；In some embodiments, the system further includes: a second lens;
所述第二透镜设置于所述分光装置与所述光信号检测装置之间，配置为对所述不同波长的第二光信号进行汇聚。The second lens is disposed between the spectroscopic device and the optical signal detection device, and is configured to converge the second optical signals of different wavelengths.
在一些实施例中，所述第一透镜与所述第二透镜的光学参数相同。In some embodiments, the optical parameters of the first lens and the second lens are the same.
在一些实施例中，所述第一透镜的曲率沿着所述第一透镜的中心到所述第一透镜的边缘的方向连续变化；In some embodiments, the curvature of the first lens varies continuously along a direction from the center of the first lens to the edge of the first lens;
和/或，所述第二透镜的曲率沿着所述第二透镜的中心到所述第二透镜的边缘的方向连续变化。And/or, the curvature of the second lens changes continuously along the direction from the center of the second lens to the edge of the second lens.
在一些实施例中，所述光信号检测装置包括：光纤阵列；In some embodiments, the optical signal detection device comprises: an optical fiber array;
所述光纤阵列包括的每条光纤用于接收不同波长的第二光信号，以便检测不同波长的第二光信号的能量。Each optical fiber included in the optical fiber array is used for receiving second optical signals of different wavelengths, so as to detect the energy of the second optical signals of different wavelengths.
在一些实施例中，所述光信号检测装置还包括：In some embodiments, the optical signal detection device further includes:
光电二极管阵列，配置为检测不同波长的第二光信号的能量。an array of photodiodes configured to detect energy of the second optical signal of different wavelengths.
在一些实施例中，所述光电二极管阵列所包括的光电二极管的数量与所述光纤阵列包括的光纤的数量相同。In some embodiments, the photodiode array includes the same number of photodiodes as the fiber array includes optical fibers.
在一些实施例中，所述光信号检测装置还包括：In some embodiments, the optical signal detection device further includes:
传动装置，配置为控制所述光纤阵列沿着与所述第二光信号在所述光纤阵列中传输的方向垂直的方向移动。An actuator configured to control the optical fiber array to move in a direction perpendicular to the direction in which the second optical signal is transmitted in the optical fiber array.
在一些实施例中，所述光信号检测装置包括：In some embodiments, the optical signal detection device includes:
线阵光传感器，配置为对所述线阵光传感器的不同点传感器接收的不同波长的第二光信号进行光积分后转换为有效光电信号，并检测所述有效光电信号的能量。The line array light sensor is configured to perform optical integration on second light signals of different wavelengths received by different point sensors of the line array light sensor, and then convert them into effective photoelectric signals, and detect the energy of the effective photoelectric signals.
本申请实施例提供的光信号检测系统包括：光源，配置为产生第一波长范围的第一光信号；分光装置，配置为将所述第一光信号转换为以不同角度出射的不同波长的第二光信号；光信号检测装置，配置为检测所述第二光信号的能量。如此，由于光源产生的第一光信号是在第一波长范围内的，是包括多种波长的第一光信号，经过分光装置，能够将多种波长的第一光信号转换为以不同角度出射的不同波长的第二光信号，以便光信号检测装置检测所述不同波长的 第二光信号的能量；实现对多通道光信号的有效检测。The optical signal detection system provided by the embodiment of the present application includes: a light source, configured to generate a first optical signal in a first wavelength range; Two optical signals; an optical signal detection device, configured to detect the energy of the second optical signal. In this way, since the first optical signal generated by the light source is in the first wavelength range and includes a first optical signal of multiple wavelengths, the first optical signal of multiple wavelengths can be converted to emit at different angles through the spectroscopic device second optical signals of different wavelengths, so that the optical signal detection device detects the energy of the second optical signals of different wavelengths; and realizes effective detection of multi-channel optical signals.
附图说明Description of drawings
图1为本申请实施例提供的光信号检测系统的一种可选结构示意图；FIG. 1 is a schematic diagram of an optional structure of an optical signal detection system provided by an embodiment of the present application;
图2为本申请实施例第一光信号的波长与镀有第一膜层的滤波片的透过率曲线之间的一种关系示意图；2 is a schematic diagram of a relationship between the wavelength of the first optical signal and the transmittance curve of the filter coated with the first film layer according to the embodiment of the present application;
图3为本申请实施例提供的光信号检测系统的另一种可选结构示意图；3 is a schematic diagram of another optional structure of an optical signal detection system provided by an embodiment of the present application;
图4为本申请实施例提供的光信号检测系统的又一种可选结构示意图；FIG. 4 is a schematic diagram of another optional structure of an optical signal detection system provided by an embodiment of the present application;
图5为相关技术中光信号检测系统的结构示意图。FIG. 5 is a schematic structural diagram of an optical signal detection system in the related art.
具体实施方式detailed description
以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
现代智能光网络中的一个重要器件是可调谐光滤波器(Tunable Optical Filter，TOF)，可调谐光滤波器的研究和发展对灵活选择和动态监测光通道具有十分重要的意义。然而，相关技术中的可调谐光滤波器存在结构复杂，成本高昂等问题。An important device in modern intelligent optical network is Tunable Optical Filter (TOF). The research and development of tunable optical filter is of great significance for flexible selection and dynamic monitoring of optical channels. However, the tunable optical filter in the related art has problems such as complex structure and high cost.
本申请实施例提供一种光信号检测系统，所述光信号检测系统100的一种可选结构，如图1所示，包括：An embodiment of the present application provides an optical signal detection system. An optional structure of the optical signal detection system 100, as shown in FIG. 1, includes:
光源101，配置为产生第一波长范围的第一光信号。The light source 101 is configured to generate a first optical signal in a first wavelength range.
在一些实施例中，所述光源101产生的光信号具有第一波长范围，即所述光源101产生的第一光信号为宽波长范围的第一光信号。In some embodiments, the optical signal generated by the light source 101 has a first wavelength range, that is, the first optical signal generated by the light source 101 is a first optical signal with a wide wavelength range.
在一些实施例中，所述光源101产生的第一光信号可以通过光纤进行传输。In some embodiments, the first optical signal generated by the light source 101 may be transmitted through an optical fiber.
分光装置102，配置为将所述第一光信号转换为以不同角度出射的不同波长的第二光信号。The optical splitting device 102 is configured to convert the first optical signal into a second optical signal with different wavelengths exiting at different angles.
在一些实施例中，所述分光装置102的功能可以由光栅实现。在所述分光装置102为光纤的情况下，光栅利用光学多缝衍射原理使入射至光栅的第一光 信号发生色散，将入射至光栅的宽波长范围的第一光信号转换为按照不同衍射角度出射的不同波长的平行光信号。其中，按照不同衍射角度出射的不同波长的平行光信号即为多通道光信号。In some embodiments, the function of the spectroscopic device 102 may be implemented by a grating. In the case where the spectroscopic device 102 is an optical fiber, the grating utilizes the principle of optical multi-slit diffraction to disperse the first optical signal incident on the grating, and converts the first optical signal with a wide wavelength range incident on the grating into different diffraction angles. Outgoing parallel light signals of different wavelengths. The parallel optical signals of different wavelengths emitted according to different diffraction angles are multi-channel optical signals.
光信号检测装置103，配置为检测所述不同波长的第二光信号的能量。The optical signal detection device 103 is configured to detect the energy of the second optical signals of different wavelengths.
在一些实施例中，由于不同波长的第二光信号即为多通道光信号，因此，光信号检测装置103能够检测多通道光信号中每个通道的光信号的能量。In some embodiments, since the second optical signals of different wavelengths are multi-channel optical signals, the optical signal detection device 103 can detect the energy of the optical signals of each channel in the multi-channel optical signals.
在一些实施例中，所述光信号检测系统100还可以包括：第一透镜104，所述第一透镜104设置于所述光源101与所述分光装置102之间，配置为将所述光源101产生的第一波长范围的发散的第一光信号转换为平行光信号。In some embodiments, the optical signal detection system 100 may further include: a first lens 104, the first lens 104 is disposed between the light source 101 and the spectroscopic device 102, and is configured to connect the light source 101 The generated diverging first optical signals of the first wavelength range are converted into parallel optical signals.
在一些实施例中，所述第一透镜104可以是非球面透镜，非球面透镜的曲率沿着所述第一透镜的中心到所述第一透镜的边缘的方向连续变化。In some embodiments, the first lens 104 may be an aspherical lens, and the curvature of the aspherical lens varies continuously along the direction from the center of the first lens to the edge of the first lens.
在一些实施例中，所述光信号检测系统100还可以包括：第二透镜105，所述第二透镜105设置于所述分光装置102与所述光信号检测装置103之间，配置为对所述不同波长的第二光信号进行汇聚。In some embodiments, the optical signal detection system 100 may further include: a second lens 105, the second lens 105 is disposed between the spectroscopic device 102 and the optical signal detection device 103, and is configured to The second optical signals of different wavelengths are aggregated.
在一些实施例中，所述第二透镜105可以是非球面透镜，非球面透镜的曲率沿着所述第一透镜的中心到所述第二透镜的边缘的方向连续变化。不同波长的平行的第二光信号经所述第二透镜105后，按照波长从大到小的顺序或者从小到大的顺序聚焦于第二透镜105的焦平面上不同的位置。In some embodiments, the second lens 105 may be an aspherical lens, and the curvature of the aspherical lens varies continuously along the direction from the center of the first lens to the edge of the second lens. After passing through the second lens 105, the parallel second optical signals of different wavelengths are focused on different positions on the focal plane of the second lens 105 according to the order of the wavelengths from large to small or from small to large.
在一些实施例中，所述第一透镜104与所述第二透镜105的光学参数相同。其中，所述光学参数至少可以包括：曲率和/或焦距。In some embodiments, the optical parameters of the first lens 104 and the second lens 105 are the same. Wherein, the optical parameters may at least include: curvature and/or focal length.
在一实施方式中，所述光信号检测装置103包括光纤阵列，所述光纤阵列包括的每条光纤用于接收不同波长的第二光信号，以便检测不同波长的第二光信号的能量。In one embodiment, the optical signal detection device 103 includes an optical fiber array, and each optical fiber included in the optical fiber array is used to receive second optical signals of different wavelengths, so as to detect the energy of the second optical signals of different wavelengths.
在一些实施例中，利用V形槽将一束光纤安装在阵列基片上，In some embodiments, a bundle of optical fibers is mounted on the array substrate using a V-groove,
在一些实施例中，所述光纤阵列位于所述第二透镜105的焦平面上，所述光纤阵列上不同位置的光纤分别用于接收不同波长的第二光信号。In some embodiments, the optical fiber array is located on the focal plane of the second lens 105, and optical fibers at different positions on the optical fiber array are respectively used to receive second optical signals of different wavelengths.
在一些实施例中，所述光信号检测装置103还包括：光电二极管阵列107， 用于检测不同波长的第二光信号的能量。In some embodiments, the optical signal detection device 103 further includes: a photodiode array 107 for detecting the energy of the second optical signal with different wavelengths.
在一些实施例中，所述光纤阵列中光纤的数目与所述光电二极管阵列中光电二极管的数目相同；光纤阵列中的每条光纤与光电二极管阵列中的一个光电二极管连接，一个光电二极管用于检测与之连接的光纤传输的第二光信号的能量。In some embodiments, the number of fibers in the fiber array is the same as the number of photodiodes in the photodiode array; each fiber in the fiber array is connected to one photodiode in the photodiode array, and one photodiode is used for The energy of the second optical signal transmitted by the optical fiber connected thereto is detected.
在一些实施例中，所述光电二极管是有一个PN结组成的半导体器件，配置为将接收到的第二光信号的光功率转换为电流。In some embodiments, the photodiode is a semiconductor device consisting of a PN junction configured to convert the received optical power of the second optical signal into an electrical current.
在一些实施例中，所述光信号检测系统100还包括：In some embodiments, the optical signal detection system 100 further includes:
传动装置106，配置为控制所述光纤阵列沿着与所述第二光信号在所述光纤阵列中传输的方向垂直的方向移动。The actuator 106 is configured to control the optical fiber array to move in a direction perpendicular to the direction in which the second optical signal is transmitted in the optical fiber array.
在一些实施例中，所述传动装置106的功能可以由直线电机实现，所述传动装置106将电能转换为直线运动的机械能，进而带动光纤阵列沿着与所述第二光信号在所述光纤阵列中传输的方向垂直的方向移动。In some embodiments, the function of the transmission device 106 can be realized by a linear motor, the transmission device 106 converts electrical energy into mechanical energy of linear motion, and then drives the optical fiber array along the optical fiber with the second optical signal. The direction of transmission in the array moves in the vertical direction.
在另一实施方式中，所述光信号检测装置103包括线阵光传感器，配置为对所述线阵光传感器的不同点传感器接收的不同波长的第二光信号进行光积分后转换为有效光电信号，并检测所述有效光电信号的能量。In another embodiment, the optical signal detection device 103 includes a line array light sensor, configured to perform optical integration on second light signals of different wavelengths received by different point sensors of the line array light sensor, and then convert them into effective photoelectricity signal, and detect the energy of the effective photoelectric signal.
在一些实施例中，所述线阵光传感器是一维光电传感器，可以将光纤阵列输出的第二光信号进行光积分，得到对应不同波长的有效光信号，并检测所述不同波长的有效光信号的能量。In some embodiments, the linear array optical sensor is a one-dimensional photoelectric sensor, which can perform optical integration on the second optical signal output by the optical fiber array to obtain effective optical signals corresponding to different wavelengths, and detect the effective optical signals of different wavelengths the energy of the signal.
下面以光信号检测装置包括光纤阵列为例，对本申请实施例提供的光信号检测系统的组成结构进行说明，如图2所示：所述光信号检测系统包括：光源01、第一非球面透镜04、光栅02、第二非球面透镜05和光纤阵列03。The following describes the composition and structure of the optical signal detection system provided by the embodiment of the present application by taking the optical signal detection device including an optical fiber array as an example, as shown in FIG. 2 : the optical signal detection system includes: a light source 01, a first aspherical lens 04, grating 02, second aspheric lens 05 and fiber array 03.
在一些实施例中，光源01产生的宽波长范围的光信号通过光纤传输，该光信号包括波长为λ 1、λ 2、λ 3、…、λ n的发散光信号；发散的光信号经第一非球面透镜04后转换为宽波长范围的平行光信号。经所述第一非球面透镜04的宽波长范围的平行光信号入射至光栅02后，光栅02将入射的宽波长范围的平行光信号分解为按照不同的衍射角度出射的不同波长的平行光信号。经所述光 栅02出射的不同波长的平行光信号经第二非球面透镜05后，按照波长由大到小或由小到大的顺序聚焦于第二非球面透镜05的不同位置。 In some embodiments, the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths λ 1 , λ 2 , λ 3 , . . . , λ n ; the diverging optical signals are transmitted through the first An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range. After the parallel light signal with a wide wavelength range of the first aspheric lens 04 is incident on the grating 02, the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. . The parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
在一些实施例中，所述光纤阵列03位于第二非球面透镜05的焦平面位置，如此，光纤阵列03能够接收到经过所述第二非球面透镜05出射的光信号。且所述光纤阵列03中的每条光纤接收经过所述第二非球面透镜05出射的一种波长的光信号，如此，通过不同的光纤接收不同波长的光信号，能够对宽波长光信号中不同波长信号的分离，即实现多通道光滤波器的功能。In some embodiments, the optical fiber array 03 is located at the focal plane position of the second aspheric lens 05 , so that the optical fiber array 03 can receive the optical signal exiting through the second aspheric lens 05 . And each optical fiber in the optical fiber array 03 receives an optical signal of one wavelength emitted by the second aspherical lens 05, so that receiving optical signals of different wavelengths through different optical fibers can be used for wide-wavelength optical signals. The separation of signals of different wavelengths realizes the function of a multi-channel optical filter.
下面以光信号检测装置包括光纤阵列和直线电机为例，即在图2所示的光信号检测系统的基础上增加直线电机，对本申请实施例提供的光信号检测系统的组成结构进行说明，如图3所示：所述光信号检测系统包括：光源01、第一非球面透镜04、光栅02、第二非球面透镜05、光纤阵列03和直线电机06。Taking the optical signal detection device including an optical fiber array and a linear motor as an example, that is, adding a linear motor on the basis of the optical signal detection system shown in FIG. 2 , the composition structure of the optical signal detection system provided by the embodiment of the present application will be described. As shown in FIG. 3 , the optical signal detection system includes: a light source 01 , a first aspherical lens 04 , a grating 02 , a second aspherical lens 05 , an optical fiber array 03 and a linear motor 06 .
在一些实施例中，光源01产生的宽波长范围的光信号通过光纤传输，该光信号包括波长为λ 1、λ 2、λ 3、…、λ n的发散光信号；发散的光信号经第一非球面透镜04后转换为宽波长范围的平行光信号。经所述第一非球面透镜04的宽波长范围的平行光信号入射至光栅02后，光栅02将入射的宽波长范围的平行光信号分解为按照不同的衍射角度出射的不同波长的平行光信号。经所述光栅02出射的不同波长的平行光信号经第二非球面透镜05后，按照波长由大到小或由小到大的顺序聚焦于第二非球面透镜05的不同位置。 In some embodiments, the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths λ 1 , λ 2 , λ 3 , . . . , λ n ; the diverging optical signals are transmitted through the first An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range. After the parallel light signal with a wide wavelength range of the first aspheric lens 04 is incident on the grating 02, the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. . The parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
在一些实施例中，所述光纤阵列03位于第二非球面透镜05的焦平面位置，如此，光纤阵列03能够接收到经过所述第二非球面透镜05出射的光信号。且所述光纤阵列03中的每条光纤接收经过所述第二非球面透镜05出射的一种波长的光信号，如此，通过不同的光纤接收不同波长的光信号，能够对宽波长光信号中不同波长信号的分离，即实现多通道光滤波器的功能。In some embodiments, the optical fiber array 03 is located at the focal plane position of the second aspheric lens 05 , so that the optical fiber array 03 can receive the optical signal exiting through the second aspheric lens 05 . And each optical fiber in the optical fiber array 03 receives an optical signal of one wavelength emitted by the second aspherical lens 05, so that receiving optical signals of different wavelengths through different optical fibers can be used for wide-wavelength optical signals. The separation of signals of different wavelengths realizes the function of a multi-channel optical filter.
在一些实施例中，光纤阵列03承载于所述直线电机06之上，使得直线电机06能够带动光纤阵列03沿着平行于第二非球面透镜05的焦平面方向来回运动，如此能够控制光纤阵列03中的哪条光纤用于接收哪个波长的光信号。如此，能够对宽波长光信号中不同波长信号的分离，且能够选择接收不同波长的光信 号的光纤，即实现多通道可调谐光滤波器的功能。In some embodiments, the optical fiber array 03 is carried on the linear motor 06, so that the linear motor 06 can drive the optical fiber array 03 to move back and forth along the direction parallel to the focal plane of the second aspheric lens 05, so that the optical fiber array can be controlled Which fiber in 03 is used to receive which wavelength of optical signal. In this way, the signals of different wavelengths in the wide-wavelength optical signal can be separated, and the optical fibers that receive the optical signals of different wavelengths can be selected, that is, the function of a multi-channel tunable optical filter can be realized.
下面以光信号检测装置包括光纤阵列、直线电机和光电二极管阵列为例，即在图3所示的光信号检测系统的基础上增加光电二极管阵列，对本申请实施例提供的光信号检测系统的组成结构进行说明，如图4所示：所述光信号检测系统包括：光源01、第一非球面透镜04、光栅02、第二非球面透镜05、光纤阵列03、直线电机06和光电二极管阵列07。The following is an example of an optical signal detection device including an optical fiber array, a linear motor, and a photodiode array, that is, a photodiode array is added on the basis of the optical signal detection system shown in FIG. 3 . The structure is described, as shown in Figure 4: the optical signal detection system includes: a light source 01, a first aspherical lens 04, a grating 02, a second aspherical lens 05, an optical fiber array 03, a linear motor 06 and a photodiode array 07 .
在一些实施例中，光源01产生的宽波长范围的光信号通过光纤传输，该光信号包括波长为λ 1、λ 2、λ 3、…、λ n的发散光信号；发散的光信号经第一非球面透镜04后转换为宽波长范围的平行光信号。经所述第一非球面透镜04的宽波长范围的平行光信号入射至光栅02后，光栅02将入射的宽波长范围的平行光信号分解为按照不同的衍射角度出射的不同波长的平行光信号。经所述光栅02出射的不同波长的平行光信号经第二非球面透镜05后，按照波长由大到小或由小到大的顺序聚焦于第二非球面透镜05的不同位置。 In some embodiments, the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths λ 1 , λ 2 , λ 3 , . . . , λ n ; the diverging optical signals are transmitted through the first An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range. After the parallel light signal with a wide wavelength range of the first aspheric lens 04 is incident on the grating 02, the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. . The parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
在一些实施例中，所述光纤阵列03位于第二非球面透镜05的焦平面位置，如此，光纤阵列03能够接收到经过所述第二非球面透镜05出射的光信号。且所述光纤阵列03中的每条光纤接收经过所述第二非球面透镜05出射的一种波长的光信号，如此，通过不同的光纤接收不同波长的光信号，能够对宽波长光信号中不同波长信号的分离，即实现多通道光滤波器的功能。In some embodiments, the optical fiber array 03 is located at the focal plane position of the second aspheric lens 05 , so that the optical fiber array 03 can receive the light signal exiting through the second aspheric lens 05 . And each optical fiber in the optical fiber array 03 receives an optical signal of one wavelength that is emitted through the second aspheric lens 05, so that receiving optical signals of different wavelengths through different optical fibers can be used for wide-wavelength optical signals. The separation of signals of different wavelengths is to realize the function of multi-channel optical filter.
在一些实施例中，光纤阵列03中的每条光纤分别连接光电二极管阵列07中的一个光电二极管。In some embodiments, each fiber in fiber array 03 is connected to one photodiode in photodiode array 07, respectively.
在一些实施例中，光纤阵列03承载于所述直线电机06之上，使得直线电机06能够带动光纤阵列03沿着平行于第二非球面透镜05的焦平面方向来回运动，通过控制直线电机06快速的运动，使得光纤阵列03中的每条光纤均快速扫描所有波长的光信号，并通过光电二极管阵列07将光信号转换为电信号后进行光谱积分，如此，实现了多通道光信号检测功能。In some embodiments, the optical fiber array 03 is carried on the linear motor 06 , so that the linear motor 06 can drive the optical fiber array 03 to move back and forth along the direction parallel to the focal plane of the second aspheric lens 05 , by controlling the linear motor 06 The fast movement makes each fiber in the fiber array 03 quickly scan the optical signals of all wavelengths, and the optical signals are converted into electrical signals through the photodiode array 07 for spectral integration, thus realizing the multi-channel optical signal detection function .
下面以光信号检测装置包括线阵光传感器为例，对本申请实施例提供的光信号检测系统的组成结构进行说明，如图5所示：所述光信号检测系统包括： 光源01、第一非球面透镜04、光栅02、第二非球面透镜05和线阵光传感器08。The composition and structure of the optical signal detection system provided by the embodiment of the present application will be described below by taking the optical signal detection device including a linear array optical sensor as an example, as shown in FIG. 5 : the optical signal detection system includes: a light source 01, a first non- Spherical lens 04 , grating 02 , second aspherical lens 05 and linear light sensor 08 .
在一些实施例中，光源01产生的宽波长范围的光信号通过光纤传输，该光信号包括波长为λ 1、λ 2、λ 3、…、λ n的发散光信号；发散的光信号经第一非球面透镜04后转换为宽波长范围的平行光信号。经所述第一非球面透镜04的宽波长范围的平行光信号入射至光栅02后，光栅02将入射的宽波长范围的平行光信号分解为按照不同的衍射角度出射的不同波长的平行光信号。经所述光栅02出射的不同波长的平行光信号经第二非球面透镜05后，按照波长由大到小或由小到大的顺序聚焦于第二非球面透镜05的不同位置。 In some embodiments, the optical signal with a wide wavelength range generated by the light source 01 is transmitted through the optical fiber, and the optical signal includes diverging optical signals with wavelengths λ 1 , λ 2 , λ 3 , . . . , λ n ; the diverging optical signals are transmitted through the first An aspherical lens 04 is then converted into a parallel light signal with a wide wavelength range. After the parallel light signal with a wide wavelength range of the first aspheric lens 04 is incident on the grating 02, the grating 02 decomposes the incident parallel light signal with a wide wavelength range into parallel light signals with different wavelengths that are emitted according to different diffraction angles. . The parallel light signals of different wavelengths emitted through the grating 02 pass through the second aspherical lens 05 and then focus on different positions of the second aspherical lens 05 according to the order of wavelengths from large to small or from small to large.
在一些实施例中，所述线阵光传感器08位于第二非球面透镜05的焦平面位置，如此，线阵光传感器08能够接收到经过所述第二非球面透镜05出射的光信号。且所述线阵光传感器08中的每个点光传感器接收经过所述第二非球面透镜05出射的一种波长的光信号，如此，通过线阵光传感器08中的不同的点光传感器接收不同波长的光信号，能够对宽波长光信号中不同波长信号的分离，即实现多通道光滤波器的功能。通过线阵光传感器08中的不同的点光传感器接收不同波长的光信号之后，通过光积分对得到有效光电信号，进而能够获得实时全波长范围的光谱信息，实现对宽波长范围的光信号的检测。In some embodiments, the line array light sensor 08 is located at the focal plane position of the second aspherical lens 05 , so that the line array light sensor 08 can receive the light signal emitted through the second aspherical lens 05 . And each point light sensor in the line array light sensor 08 receives a light signal of one wavelength emitted through the second aspheric lens 05 , so that it is received by different point light sensors in the line array light sensor 08 Optical signals of different wavelengths can separate the signals of different wavelengths in the wide-wavelength optical signal, that is, to realize the function of a multi-channel optical filter. After receiving the optical signals of different wavelengths by different point light sensors in the linear light sensor 08, the effective photoelectric signals are obtained through the optical integration pair, and then the spectral information of the full wavelength range can be obtained in real time, and the optical signal of a wide wavelength range can be obtained. detection.
综上，本申请实施例提供的光信号检测系统可以实现多通道光滤波器、多通道可调谐光滤波器、多通道光性能监控以及实时光性能监控的功能。并且，本申请实施例提供的光信号检测系统的光路简单、可实现的功能多样化；由于本申请实施例提供的光信号检测系统无可移动的部件，使得光信号检测系统性能稳定。To sum up, the optical signal detection system provided in the embodiments of the present application can implement the functions of a multi-channel optical filter, a multi-channel tunable optical filter, multi-channel optical performance monitoring, and real-time optical performance monitoring. In addition, the optical signal detection system provided by the embodiments of the present application has a simple optical path and various achievable functions; since the optical signal detection system provided by the embodiments of the present application has no moving parts, the performance of the optical signal detection system is stable.
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (10)

  1. 一种光信号检测系统，所述系统包括：An optical signal detection system, the system includes:
    光源，配置为产生第一波长范围的第一光信号；a light source configured to generate a first optical signal in a first wavelength range;
    分光装置，配置为将所述第一光信号转换为以不同角度出射的不同波长的第二光信号；an optical splitting device, configured to convert the first optical signal into a second optical signal of different wavelengths exiting at different angles;
    光信号检测装置，配置为检测所述不同波长的第二光信号的能量。An optical signal detection device is configured to detect the energy of the second optical signals of different wavelengths.
  2. 根据权利要求1所述的系统，其中，所述系统还包括：第一透镜；The system of claim 1, wherein the system further comprises: a first lens;
    所述第一透镜设置于所述光源与所述分光装置之间，配置为将所述光源产生的第一波长范围的第一光信号转换为平行光信号。The first lens is disposed between the light source and the spectroscopic device, and is configured to convert a first optical signal in a first wavelength range generated by the light source into a parallel optical signal.
  3. 根据权利要求2所述的系统，其中，所述系统还包括：第二透镜；The system of claim 2, wherein the system further comprises: a second lens;
    所述第二透镜设置于所述分光装置与所述光信号检测装置之间，配置为对所述不同波长的第二光信号进行汇聚。The second lens is disposed between the spectroscopic device and the optical signal detection device, and is configured to converge the second optical signals of different wavelengths.
  4. 根据权利要求3所述的系统，其中，所述第一透镜与所述第二透镜的光学参数相同。The system of claim 3, wherein the first lens and the second lens have the same optical parameters.
  5. 根据权利要求3所述的系统，其中，所述第一透镜的曲率沿着所述第一透镜的中心到所述第一透镜的边缘的方向连续变化；The system of claim 3, wherein the curvature of the first lens varies continuously along a direction from a center of the first lens to an edge of the first lens;
    和/或，所述第二透镜的曲率沿着所述第二透镜的中心到所述第二透镜的边缘的方向连续变化。And/or, the curvature of the second lens changes continuously along the direction from the center of the second lens to the edge of the second lens.
  6. 根据权利要求1至5任一项所述的系统，其中，所述光信号检测装置包括：光纤阵列；The system according to any one of claims 1 to 5, wherein the optical signal detection device comprises: an optical fiber array;
    所述光纤阵列包括的每条光纤用于接收不同波长的第二光信号，以便检测不同波长的第二光信号的能量。Each optical fiber included in the optical fiber array is used for receiving second optical signals of different wavelengths, so as to detect the energy of the second optical signals of different wavelengths.
  7. 根据权利要求6所述的系统，其中，所述光信号检测装置还包括：The system according to claim 6, wherein the optical signal detection device further comprises:
    光电二极管阵列，配置为检测不同波长的第二光信号的能量。an array of photodiodes configured to detect energy of the second optical signal of different wavelengths.
  8. 根据权利要求7所述的系统，其中，所述光电二极管阵列所包括的光电二极管的数量与所述光纤阵列包括的光纤的数量相同。8. The system of claim 7, wherein the photodiode array includes the same number of photodiodes as the fiber array includes optical fibers.
  9. 根据权利要求6所述的系统，其中，所述光信号检测装置还包括：The system according to claim 6, wherein the optical signal detection device further comprises:
    传动装置，配置为控制所述光纤阵列沿着与所述第二光信号在所述光纤阵列中传输的方向垂直的方向移动。An actuator configured to control the optical fiber array to move in a direction perpendicular to the direction in which the second optical signal is transmitted in the optical fiber array.
  10. 根据权利要求1至5任一项所述的系统，其中，所述光信号检测装置包括：The system according to any one of claims 1 to 5, wherein the optical signal detection device comprises:
    线阵光传感器，配置为对所述线阵光传感器的不同点传感器接收的不同波长的第二光信号进行光积分后转换为有效光电信号，并检测所述有效光电信号的能量。The line array light sensor is configured to perform optical integration on second light signals of different wavelengths received by different point sensors of the line array light sensor, and then convert them into effective photoelectric signals, and detect the energy of the effective photoelectric signals.
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