WO2024012307A1 - 光信号传输装置和光学系统 - Google Patents

光信号传输装置和光学系统 Download PDF

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Publication number
WO2024012307A1
WO2024012307A1 PCT/CN2023/105521 CN2023105521W WO2024012307A1 WO 2024012307 A1 WO2024012307 A1 WO 2024012307A1 CN 2023105521 W CN2023105521 W CN 2023105521W WO 2024012307 A1 WO2024012307 A1 WO 2024012307A1
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Prior art keywords
optical
optical signal
waveguide
signal transmission
transmission device
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PCT/CN2023/105521
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English (en)
French (fr)
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段明慧
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中兴通讯股份有限公司
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Publication of WO2024012307A1 publication Critical patent/WO2024012307A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers

Definitions

  • the present disclosure relates to optical communication equipment, and in particular, to optical signal transmission devices and optical systems.
  • single-fiber bidirectional transmission (Bidirectional, BIDI) technology has emerged.
  • optical signals are coupled multiple times through separate combiners and demultiplexers and transmission and reflection optical components, and are packaged into devices to obtain optical input and output devices that can implement BIDI technology, and then connect them to the printed circuit board through metal pins.
  • PCB Print Circuit Board, PCB
  • This packaging method has complex processes and large packaging size, making it unsuitable for optical input and output (Optical I/O) usage scenarios.
  • the existing multiplexers and demultiplexers and transmission and reflection optical components can only be in the form of a single component, which cannot be further miniaturized on the existing basis, and silicon-based integration cannot be realized, that is, the chip integration process cannot be realized.
  • an optical signal transmission device including: an optical signal modulation component, a photodetection component, a coupling microring and an optical input and output port.
  • the coupling microring is used to input and output light into the optical signal.
  • the first incident optical signal of the port resonates and is coupled to the optical detection component, and does not resonate with the second incident optical signal flowing out of the optical signal modulation component, so that the second incident optical signal directly enters the optical signal modulation component.
  • Optical input and output port is provided, including: an optical signal modulation component, a photodetection component, a coupling microring and an optical input and output port.
  • an optical system includes a pair of optical signal transmission devices, wherein the optical signal transmission device is the optical signal transmission device provided by the first aspect of the disclosure. .
  • Figure 1 is a schematic diagram of an embodiment of an optical signal transmission device provided by the present disclosure
  • Figure 2 is a schematic diagram of an embodiment of the optical system provided by the present disclosure
  • FIG. 1 Schematic diagram of coupled microring to implement BIDI
  • Figure 4 is a schematic diagram of an embodiment of an optical signal transmission device in the optical system provided by the present disclosure
  • Figure 5 is a schematic diagram of another embodiment of an optical signal transmission device in the optical system provided by the present disclosure.
  • Figure 6 is a schematic diagram of an embodiment of another optical signal transmission device in the optical system provided by the present disclosure.
  • FIG. 7 is a schematic diagram of another embodiment of another optical signal transmission device in the optical system provided by the present disclosure.
  • an optical signal transmission device includes an optical signal modulation component 100 and an optical detection component 200 , wherein the optical signal transmission device further includes a coupling micro The ring 300 and the light input and output port 400, the coupling micro ring 300 is configured to resonate the first incident light signal entering the light input and output port 400, couple the first incident light signal to the light detection component 200, and couple the outflow light signal
  • the second incident optical signal of the modulation component 100 does not resonate, so that the second incident optical signal enters the optical input and output port 400 .
  • the solid arrow represents the second incident light signal
  • the dotted arrow represents the first incident light signal.
  • the coupling microring 300 When the optical input and output port 400 receives the first incident light signal, the coupling microring 300 resonantly couples the first incident light signal so that the first incident light signal can enter the light detection component 200 , and the coupling microring 300 The second incident optical signal emitted by the optical signal modulation component 100 is not resonant, so that the second incident optical signal can enter the optical input and output port 400 and directly exit from the optical input and output port 400 . It can be seen from this that in the present disclosure, BIDI technology can be implemented only by arranging the coupling microring 300, which simplifies the structure of the optical signal transmission device.
  • the optical input and output port 400 may include an input port, a through port, a drop port, and an add port.
  • a part of the optical signal ie, the first incident optical signal ⁇ '1, ⁇ '2,..., ⁇ 'n-1, ⁇ ' incident on the optical input and output port 400 n
  • the other part of the optical signal ie, the second incident optical signal ⁇ 1, ⁇ 2, ..., ⁇ n-1, ⁇ n generated by the optical signal modulation component 100
  • the optical signal coupled into the coupling microring 300 propagates through half the circumference of the coupling microring 300 and is output from the drop port, thereby realizing the BIDI technology.
  • the specific structure of the light detection component 200 is not particularly limited. As shown in FIG. 2 , the light detection assembly 200 may include a light detection element array 210 and a first dual through waveguide microring array filter 220 .
  • the photodetector element array 210 includes n photodetectors (Photodetectors, PDs), and the first double straight-through waveguide microring array filter 220 includes n first double straight-through waveguide microrings, n photodetectors and the nth said
  • the optical paths of a pair of straight-through waveguide microrings correspond one to one, and n first double-through waveguide microrings respectively correspond to n different wavelengths of light, where n is a positive integer.
  • the optical signal emitted by the optical transmission module at the opposite end can enter the optical input and output port 400 as the first incident optical signal, pass through the resonance of the coupling microring 300, enter the first dual through waveguide microring of the corresponding wavelength of the first incident optical signal, and then Enter the light detection element array 210 corresponding to the first dual through waveguide microring.
  • the first incident light signals with wavelengths ⁇ '1, ⁇ '2,..., ⁇ 'n-1, ⁇ 'n respectively enter the n-th into a pair of straight-through waveguide microrings, and finally enters the corresponding light detection element.
  • the light detection component 200 further includes a first optical waveguide, and the light detection element passes through the first double through-pass corresponding to the light detection element.
  • the waveguide microrings are connected.
  • the light detection element array 210 can be integrated on the same chip.
  • the specific structure of the optical signal modulation component 100 is not particularly limited. Certainly. As shown in FIGS. 2 and 4 , the optical signal modulation component 100 includes a modulator array 110 and a second dual through waveguide microring array filter 120 .
  • the modulator array 110 includes n modulators (modulators), and the second dual through waveguide microring array filter 120 includes n second dual through waveguide microring array filters, n modulators and n second dual through waveguide microring array filters.
  • the optical paths through the waveguide microring are in one-to-one correspondence, and n modulators can modulate second incident optical signals of n different wavelengths.
  • n modulators emit second incident optical signals with wavelengths ⁇ 1, ⁇ 2,..., ⁇ n-1, ⁇ n, which pass through the second dual through waveguide micro-ring array filter 120
  • the n second double through waveguide microrings are output to the optical input and output port 400 .
  • the structure of the optical signal modulation component 100 is not particularly limited.
  • the optical signal modulation component 100 may also include a second optical waveguide.
  • the modulator is connected to the second double through waveguide microring corresponding to the modulator through the second optical waveguide.
  • the first optical waveguide and the second optical waveguide are aligned for signal coupling.
  • the modulator array 110 can be integrated on the same chip.
  • the modulator array 110 of the optical signal modulation component 100 and the photodetection element array 210 of the photodetection component 200 are integrated on the same electrical chip (that is, the integrated photodetection element array 210 The chip is the same electrical chip as the chip of the integrated modulator array 110).
  • the first dual through waveguide microring array filter 220 and the second dual through waveguide microring array filter 120 are integrated on the same optical path chip. The first optical waveguide and the second optical waveguide between the electrical chip and the optical circuit chip are aligned for signal coupling.
  • the coupling microring 300 can also be integrated on the same optical path chip with at least one of the first dual through waveguide microring array filter 220 and the second dual through waveguide microring array filter 120, so that through a single A silicon-based integrated chip can realize BIDI transmission, which reduces the process difficulty of manufacturing optical signal transmission devices and reduces the cost of fiber laying. It also avoids the loss caused by multiple couplings during the optical transmission process, and can increase the packaging density and data transmission capacity.
  • the optical signal modulation component 100, the optical detection component 200, and the coupling microring 300 can be integrated on the same chip to further Reduce the size of the optical signal transmission device.
  • the specific structure of the optical input and output port 400 is not particularly limited, and the optical input and output port 400 may include an optical port waveguide.
  • an optical system includes a pair of optical signal transmission devices, wherein the optical signal transmission device is the optical signal transmission device provided by the first aspect of the disclosure. .
  • the optical signal transmission device provided by the present disclosure can implement BIDI technology through a simple structure.
  • the optical fiber 500 When transmitting optical signals, the optical fiber 500 needs to be installed between the optical input and output ports of the same pair of optical signal transmission devices.
  • the optical fiber 500 can be obtained through outsourcing.
  • the optical input and output ports of the two optical signal transmission devices are connected through optical fibers 500 .
  • the same pair of optical signal transmission devices includes optical signal transmission device A and optical signal transmission device B.
  • the optical signal transmission device A and the optical signal transmission device B are interconnected through the optical fiber 500.
  • Optical signal transmission device A serves as the optical receiving end:
  • the first incident optical signals with wavelengths ⁇ '1, ⁇ '2,..., ⁇ 'n-1, ⁇ 'n output by the optical signal transmission device B through the optical fiber 500 pass through the optical input and output ports of the optical signal transmission device A.
  • the straight waveguide input is then coupled into the coupling micro-ring 300 of the optical signal transmission device A.
  • the wavelengths in the coupling micro-ring 300 of the optical signal transmission device A are ⁇ '1, ⁇ '2,..., ⁇ 'n-1 respectively.
  • the optical signal of ⁇ 'n is coupled into the straight waveguide of the first dual straight-through waveguide micro-ring array filter 220 of the optical signal transmission device A, and then coupled into the first dual straight-through waveguide micro-ring array filter 220 of the optical signal transmission device A.
  • the first dual straight waveguide microring of the corresponding wavelength of the filter 220 outputs ⁇ '1, ⁇ '2,..., ⁇ 'n-1, ⁇ respectively through the other straight waveguide of the first dual straight waveguide microring array filter 220. 'n optical signal and enters the photodetection element array 210 of the optical signal transmission device A.
  • Optical signal transmission device A serves as the optical transmitter:
  • the modulator array 110 of the optical signal transmission device A modulates the second incident optical signals with wavelengths ⁇ 1, ⁇ 2, ..., ⁇ n-1, ⁇ n respectively.
  • the above-mentioned second incident optical signals are coupled into the second dual through waveguide micro-ring array filtering
  • the second double straight waveguide micro-ring of the corresponding wavelength of the device 120 is then coupled into the straight waveguide of the optical input and output port of the optical signal transmission device A, and is output to the optical signal transmission device B through the optical fiber 500.
  • Optical signal transmission device B serves as the optical receiving end:
  • the first incident optical signal with wavelengths ⁇ 1, ⁇ 2, ..., ⁇ n-1, ⁇ n output by the optical signal transmission device A through the optical fiber 500 is input through the straight waveguide of the optical input and output port of the optical signal transmission device B, and then coupled in The coupling micro-ring of the optical signal transmission device B.
  • the optical signals with wavelengths ⁇ 1, ⁇ 2,..., ⁇ n-1, and ⁇ n in the coupling micro-ring of the optical signal transmission device B are coupled into the first signal of the optical signal transmission device B.
  • the straight waveguide of the dual through waveguide microring array filter is then coupled into the first dual through waveguide microring of the corresponding wavelength of the first dual through waveguide microring array filter of the optical signal transmission device B, through the first dual through waveguide
  • the other straight waveguide of the microring array filter outputs the photodetection element arrays of ⁇ 1, ⁇ 2,..., ⁇ n-1, and ⁇ n of the optical signal transmission device B respectively.
  • Optical signal transmission device B serves as the optical transmitter:
  • the modulator array of the optical signal transmission device B modulates the second incident optical signals whose output wavelengths are ⁇ '1, ⁇ '2,..., ⁇ 'n-1, and ⁇ 'n respectively.
  • the above-mentioned second incident optical signals are coupled into the second incident light signal.
  • the second double straight waveguide microring of the corresponding wavelength of the double straight waveguide microring array filter is then coupled into the straight waveguide of the optical input and output port of the optical signal transmission device B, and is output to the optical signal transmission device A through the optical fiber 500.
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes volatile and nonvolatile media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. removable, removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disk (DVD) or other optical disk storage, magnetic cassettes, tapes, disk storage or other magnetic storage devices, or may Any other medium used to store desired information and that can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Abstract

一种光信号传输装置和光学系统，光信号传输装置包括：光信号调制组件（100）、光探测组件（200）、耦合微环（300）和光输入输出端口（400），耦合微环（300）配置为对进入光输入输出端口（400）的第一入射光信号进行谐振，并耦合第一入射光信号至光探测组件（200），且对流出光信号调制组件（100）的第二入射光信号不发生谐振，使第二入射光信号直接进入光输入输出端口（400）。

Description

光信号传输装置和光学系统
相关申请的交叉引用
本申请要求于2022年7月11日提交的中国专利申请NO.202210812446.9的优先权，该中国专利申请的内容通过引用的方式整体合并于此。
技术领域
本公开涉及光通信设备，具体地，涉及光信号传输装置和光学系统。
背景技术
为了减少光纤铺设，出现了单纤双向传输(Bidirectional，BIDI)技术。在相关技术中，通过分立的合分波器、透射反射光学组件，对光信号进行多次耦合，封装成器件，获得能够实现BIDI技术的光学输入输出器件，然后通过金属引脚与印刷电路板(Printed Circuit Board，PCB)相连的方式将光信号调制器件和光信号探测器件固定在PCB上进行封装。这种封装方式工艺复杂，封装尺寸大，无法适用于光学输入输出(Optical I/O)的使用场景。且现有的合分波器、透射反射光学组件只能是单个组件的形式，无法在现有基础上进一步小型化，且无法实现硅基集成，即无法实现芯片集成工艺。
发明内容
作为本公开的第一个方面，提供一种光信号传输装置，包括：光信号调制组件、光探测组件、耦合微环和光输入输出端口，所述耦合微环用于对进入所述光输入输出端口的第一入射光信号进行谐振，并耦合至所述光探测组件，且对流出所述光信号调制组件的第二入射光信号不发生谐振，使所述第二入射光信号直接进入所述光输入输出 端口。
作为本公开的第二个方面，提供一种光学系统，所述光学系统包括成对的光信号传输装置，其中，所述光信号传输装置为本公开第一个方面所提供的光信号传输装置。
附图说明
图1是本公开所提供的光信号传输装置的一种实施方式的示意图；
图2是本公开所提供的光学系统的一种实施方式的示意图；
图3耦合微环实现BIDI的原理图；
图4是本公开所提供的光学系统中一个光信号传输装置的一种实施方式的示意图；
图5是本公开所提供的光学系统中一个光信号传输装置的另一种实施方式的示意图；
图6是本公开所提供的光学系统中另一个光信号传输装置的一种实施方式的示意图；以及
图7是本公开所提供的光学系统中另一个光信号传输装置的另一种实施方式的示意图。
具体实施方式
为使本领域的技术人员更好地理解本公开的技术方案，下面结合附图对本公开提供的光信号传输装置和光学系统进行详细描述。
在下文中将参考附图更充分地描述示例实施例，但是所述示例实施例可以以不同形式来体现且不应当被解释为限于本文阐述的实施例。提供这些实施例的目的在于使本公开更加透彻和完整，并使本领域技术人员充分理解本公开的范围。
在不冲突的情况下，本公开各实施例及实施例中的各特征可相互组合。
如本文所使用的，术语“和/或”包括一个或多个相关列举条目的任何和所有组合。
本文所使用的术语仅用于描述特定实施例，且不意欲限制本公开。如本文所使用的，单数形式“一个”和“该”也意欲包括复数形式，除非上下文另外清楚指出。还将理解的是，当本说明书中使用术语“包括”和/或“由……制成”时，指定存在特定特征、整体、步骤、操作、元件和/或组件，但不排除存在或可添加一个或多个其它特征、整体、步骤、操作、元件、组件和/或其群组。
除非另外限定，否则本文所用的所有术语(包括技术和科学术语)的含义与本领域普通技术人员通常理解的含义相同。还将理解，诸如在常用字典中限定的术语应当被解释为具有与其在相关技术以及本公开的背景下的含义一致的含义，且将不解释为具有理想化或过度形式上的含义，除非本文明确如此限定。
作为本公开的一个方面，提供一种光信号传输装置，如图1中所示，该光信号传输装置包括光信号调制组件100和光探测组件200，其中，所述光信号传输装置还包括耦合微环300和光输入输出端口400，耦合微环300配置为对进入光输入输出端口400的第一入射光信号进行谐振，并耦合所述第一入射光信号至光探测组件200，且对流出光信号调制组件100的第二入射光信号不发生谐振，使所述第二入射光信号进入光输入输出端口400。需要指出的是，在本公开中，实线箭头表示的是第二入射光信号，虚线箭头表示的是第一入射光信号。
在光输入输出端口400接收到第一入射光信号时，耦合微环300对第一入射光信号进行谐振耦合，使得所述第一入射光信号可以进入光探测组件200中，而耦合微环300对光信号调制组件100发出的第二入射光信号不谐振，使得该第二入射光信号可以进入光输入输出端口400、并直接从光输入输出端口400出射。由此可知，在本公开中，仅通过设置耦合微环300即可实现BIDI技术，简化了光信号传输装置的结构。
在本公开中，如图3所示，光输入输出端口400可以包括输入口(Input port)、通过口(Through port)、跌落口(Drop port)、添加口(Add port)。
下面结合图2和图3介绍耦合微环300实现合分波及单纤双向的原理。
光经过耦合微环300的中间耦合区域时，一部分光信号(即，入射到光输入输出端口400的第一入射光信号λ’1、λ’2、……、λ’n-1、λ’n)耦合到环形的耦合微环300中，另一部分光信号(即，光信号调制组件100产生的第二入射光信号λ1、λ2、……、λn-1、λn)保留在光输入输出端口400中，并直接从光输入输出端口400的通过口出射。耦合进入耦合微环300中的光信号，经过耦合微环300半个周长的传播后，从跌落口输出，从而可以实现BIDI技术。
在本公开中，对光探测组件200的具体结构不做特殊的限定。如图2中所示，光探测组件200可以包括光探测元件阵列210和第一双直通波导微环阵列滤波器220。
光探测元件阵列210包括n个光探测元件(Photodetector，PD)，第一双直通波导微环阵列滤波器220包括n个第一双直通波导微环，n个光探测元件和n个所述第一双直通波导微环的光路一一对应，n个所述第一双直通波导微环分别对应n种不同波长的光，其中，n为正整数。
对端的光传输模块发出的光信号能够作为第一入射光信号进入光输入输出端口400，经过耦合微环300的谐振，进入第一入射光信号的相应波长的第一双直通波导微环，再进入与第一双直通波导微环相对应的光探测元件阵列210。
在图2、图4和图6中所示的实施方式中，波长为λ’1、λ’2、……、λ’n-1、λ’n的第一入射光信号分别进入n个第一双直通波导微环中，最后进入相应的光探测元件中。
为了缩小光探测组件200的体积，如图5所示，光探测组件200还包括第一光波导，光探测元件通过所述第一光波导与所述光探测元件对应的所述第一双直通波导微环相连。
为了进一步缩小光探测组件200的体积，可将光探测元件阵列210集成在同一芯片上。
在本公开中，对光信号调制组件100的具体结构不做特殊的限 定。如图2和图4所示，所述光信号调制组件100包括调制器阵列110和第二双直通波导微环阵列滤波器120。
调制器阵列110包括n个调制器(modulator)，第二双直通波导微环阵列滤波器120包括n个第二双直通波导微环阵列滤波器，n个调制器和n个所述第二双直通波导微环的光路一一对应，n个所述调制器能够调制出n种不同波长的第二入射光信号。
如图2、图4和图5所示，n个调制器发出波长为λ1、λ2、……、λn-1、λn的第二入射光信号，经过第二双直通波导微环阵列滤波器120中的n个第二双直通波导微环输出至光输入输出端口400。
在本公开中，对光信号调制组件100的结构不做特殊的限定，为了缩小光信号调制组件100的体积，如图5和图7所示，光信号调制组件100还可以包括第二光波导，调制器通过所述第二光波导与所述调制器对应的所述第二双直通波导微环相连。
所述第一光波导与所述第二光波导对准后进行信号耦合。
为了进一步缩小光信号调制组件100的体积，可将调制器阵列110集成在同一芯片上。
为了进一步缩小光信号传输装置的体积，光信号调制组件100的调制器阵列110、以及光探测组件200的光探测元件阵列210集成在同一电芯片上(也就是说，集成光探测元件阵列210的芯片、与集成调制器阵列110的芯片为同一电芯片)。并且，第一双直通波导微环阵列滤波器220和第二双直通波导微环阵列滤波器120集成在同一光路芯片上。电芯片和光路芯片之间的第一光波导和第二光波导对准后进行信号耦合。在本公开中，耦合微环300也可以与第一双直通波导微环阵列滤波器220和第二双直通波导微环阵列滤波器120中的至少一者集成在同一光路芯片上，这样通过单片硅基集成芯片即可实现BIDI传输，降低了制造光信号传输装置的工艺难度、并降低了光纤铺设成本，还避免了光传输过程中多次耦合造成的损耗，并且可以提高封装密度以及数据传输容量。
作为一种可选实施方式，在本公开中，光信号调制组件100、光探测组件200、以及耦合微环300可以集成在同一芯片上，以进一步 降低光信号传输装置的体积。
在本公开中，对光输入输出端口400的具体结构不做特殊的限定，光输入输出端口400可以包括光口波导。
作为本公开的第二个方面，提供一种光学系统，所述光学系统包括成对的光信号传输装置，其中，所述光信号传输装置为本公开第一个方面所提供的光信号传输装置。
如上文中所述，本公开所提供的光信号传输装置可以通过简单的结构实现BIDI技术。
在传递光信号时，需要在同一对光信号传输装置的光学输入输出端口之间设置光纤500。在本公开中，对如何获得光纤500不做特殊的限定。例如，可以通过外购的方式获得光纤500。
作为一些示例性实施方式，在同一对光信号传输装置中，两个所述光信号传输装置的光输入输出端口通过光纤500相连。
下面结合图2对同一对光信号传输装置的工作原理进行简单的介绍和说明。
如图2所示，同一对光信号传输装置包括光信号传输装置A和光信号传输装置B。光信号传输装置A和光信号传输装置B通过光纤500互联。
光信号传输装置A的光路说明：
光信号传输装置A作为光接收端：
光信号传输装置B通过光纤500输出的波长为λ’1、λ’2、……、λ’n-1、λ’n的第一入射光信号，通过光信号传输装置A的光输入输出端口的直波导输入，然后耦合进入光信号传输装置A的耦合微环300，光信号传输装置A的耦合微环300里的波长分别为λ’1、λ’2、……、λ’n-1、λ’n的光信号，耦合进入光信号传输装置A的第一双直通波导微环阵列滤波器220的直波导，然后再耦合进入光信号传输装置A的第一双直通波导微环阵列滤波器220的相应波长的第一双直通波导微环，通过第一双直通波导微环阵列滤波器220的另一直波导分别输出λ’1、λ’2、……、λ’n-1、λ’n光信号，并进入光信号传输装置A的光探测元件阵列210。
光信号传输装置A作为光发射端：
光信号传输装置A调制器阵列110分别调制出波长为λ1、λ2、……、λn-1、λn的第二入射光信号，上述第二入射光信号耦合进入第二双直通波导微环阵列滤波器120的相应波长的第二双直通波导微环，再耦合进入光信号传输装置A的光输入输出端口的直波导，经过光纤500输出给光信号传输装置B。
光信号传输装置B的光路说明：
光信号传输装置B作为光接收端：
光信号传输装置A通过光纤500输出的波长为λ1、λ2、……、λn-1、λn的第一入射光信号，通过光信号传输装置B的光输入输出端口的直波导输入，然后耦合进入光信号传输装置B的耦合微环，光信号传输装置B的耦合微环里的波长分别为λ1、λ2、……、λn-1、λn的光信号，耦合进入光信号传输装置B的第一双直通波导微环阵列滤波器的直波导，然后再耦合进入光信号传输装置B的第一双直通波导微环阵列滤波器的相应波长的第一双直通波导微环，通过第一双直通波导微环阵列滤波器的另一直波导分别输出λ1、λ2、……、λn-1、λn光信号传输装置B的光探测元件阵列。
光信号传输装置B作为光发射端：
光信号传输装置B调制器阵列分别调制输出波长为λ’1、λ’2、……、λ’n-1、λ’n的第二入射光信号，上述第二入射光信号耦合进入第二双直通波导微环阵列滤波器的相应波长的第二双直通波导微环，再耦合进入光信号传输装置B的光输入输出端口的直波导，经过光纤500输出给光信号传输装置A。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器(如中央处理器、数字信号处理器或微处理器)执行的软件，或者被实施 为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其它数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其它存储器技术、CD-ROM、数字多功能盘(DVD)或其它光盘存储、磁盒、磁带、磁盘存储或其它磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其它的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其它传输机制之类的调制数据信号中的其它数据，并且可包括任何信息递送介质。
一般说明性含义，并且不用于限制的目的。在一些实例中，对本领域技术人员显而易见的是，除非另外明确指出，否则与特定实施例相结合描述的特征、特性和/或元素可单独使用，或可与结合其它实施例描述的特征、特性和/或元件组合使用。因此，本领域技术人员将理解，在不脱离由所附的权利要求阐明的本公开的范围的情况下，可进行各种形式和细节上的改变。

Claims (10)

  1. 一种光信号传输装置，包括：光信号调制组件、光探测组件、耦合微环和光输入输出端口；
    所述耦合微环配置为对进入所述光输入输出端口的第一入射光信号进行谐振，并耦合所述第一入射光信号至所述光探测组件，且对流出所述光信号调制组件的第二入射光信号不发生谐振，使所述第二入射光信号直接进入所述光输入输出端口。
  2. 根据权利要求1所述的光信号传输装置，其中，所述光探测组件包括光探测元件阵列和第一双直通波导微环阵列滤波器，
    所述光探测元件阵列包括n个光探测元件，所述第一双直通波导微环阵列滤波器包括n个第一双直通波导微环，n个所述光探测元件和n个所述第一双直通波导微环的光路一一对应，n个所述第一双直通波导微环分别对应n种不同波长的光，其中，n为正整数。
  3. 根据权利要求2所述的光信号传输装置，其中，所述光探测组件还包括第一光波导，所述光探测元件通过所述第一光波导与所述光探测元件对应的所述第一双直通波导微环相连。
  4. 根据权利要求2所述的光信号传输装置，其中，所述光探测元件阵列集成在同一芯片上，和/或，所述第一双直通波导微环阵列滤波器与所述耦合微环集成在同一芯片上。
  5. 根据权利要求1所述的光信号传输装置，其中，所述光信号调制组件包括调制器阵列和第二双直通波导微环阵列滤波器；
    所述调制器阵列包括n个调制器，所述第二双直通波导微环阵列滤波器包括n个第二双直通波导微环阵列滤波器，n个所述调制器和n个所述第二双直通波导微环的光路一一对应，n个所述调制器能够调制出n种不同波长的第二入射光信号，其中，n为正整数。
  6. 根据权利要求5所述的光信号传输装置，其中，所述光信号调制组件还包括第二光波导，所述调制器通过所述第二光波导与所述调制器对应的所述第二双直通波导微环相连。
  7. 根据权利要求5所述的光信号传输装置，其中，所述调制器阵列集成在同一芯片上，和/或，所述第二双直通波导微环阵列滤波器与所述耦合微环集成在同一芯片上。
  8. 根据权利要求1至7中任意一项所述的光信号传输装置，其中，所述光输入输出端口包括光口波导。
  9. 一种光学系统，所述光学系统包括成对的光信号传输装置，其中，所述光信号传输装置为权利要求1至8中任意一项所述的光信号传输装置。
  10. 根据权利要求9所述的光学系统，其中，在同一对所述光信号传输装置中，两个所述光信号传输装置的光输入输出端口通过光纤相连。
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