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CN-122002160-A - Optical switching device, system and control method

CN122002160ACN 122002160 ACN122002160 ACN 122002160ACN-122002160-A

Abstract

The application relates to the technical field of optical switching and discloses an optical switching device, a system and a control method, wherein an input conversion module is utilized to convert an electric signal into a single-wavelength optical signal based on a control signal and then transmit the single-wavelength optical signal to a selected first optical path through an internal switching mechanism, and when the single-wavelength optical signal moves to an optical wave filter with a corresponding wavelength along the first optical path, the single-wavelength optical signal is reflected to a second optical path by the optical wave filter and then transmitted to a signal receiving module through the second optical path, so that the directional distribution of the optical signal is realized, the time consumption caused by link switching in the related technology is greatly shortened, and the defect that the optical switching device disclosed in the related technology is difficult to meet the data transmission speed requirement of a data center is overcome.

Inventors

  • DONG KE

Assignees

  • 无锡众星微系统技术有限公司

Dates

Publication Date
20260508
Application Date
20251226

Claims (10)

  1. 1. An optical switching device, the device comprising: an input conversion module (20), a plurality of first optical paths (30), a plurality of second optical paths (40), and a signal receiving module (50); The output end of the input conversion module (20) is connected with a plurality of first light paths (30), each first light path (30) is respectively communicated with a plurality of second light paths (40) along the arrangement direction of the first light path, a light wave filter (60) is arranged at the communication position of each second light path (40) and the first light path (30), each light wave filter (60) is used for reflecting a single-wavelength light signal corresponding to a selected wavelength to the second light path (40), and the output end of each second light path (40) is connected with the signal receiving module (50); The input conversion module (20) is used for generating a single-wavelength optical signal corresponding to the control signal based on the control signal and sending the single-wavelength optical signal to the selected first optical path (30); The first light path (30) is used for transmitting the optical signal with single wavelength along the setting direction; The second optical path (40) is used for transmitting the single-wavelength optical signal reflected by the optical wave filter (60) to the signal receiving module (50).
  2. 2. The apparatus according to claim 1, wherein the input conversion module (20) comprises: And a plurality of input conversion units (201), wherein each input conversion unit (201) is connected with one first optical path (30) and is used for transmitting the generated single-wavelength optical signals to the corresponding first optical paths (30).
  3. 3. The apparatus according to claim 2, wherein the input conversion unit (201) comprises: An optical signal integration subunit (2011) and a plurality of optical signal modulation subunits (2012), wherein the input end of the optical signal integration subunit (2011) is connected with the output ends of the plurality of optical signal modulation subunits (2012); The optical signal modulation subunit (2012) is used for modulating the generation or the closing of the optical signal with the single wavelength corresponding to the optical signal modulation subunit based on the control signal of the controller; The optical signal integration subunit (2011) is configured to receive the single-wavelength optical signals transmitted by the plurality of optical signal modulation subunits (2012) and transmit the single-wavelength optical signals to the corresponding first optical paths (30).
  4. 4. The apparatus of claim 3, wherein the optical signal modulation subunit (2012) comprises: And the modulator is used for modulating the generation or the closing of the corresponding single-wavelength optical signals based on the received control signals of the controller.
  5. 5. A device according to claim 3, characterized in that the optical signal integration subunit (2011) comprises: An optical path multiplexer for receiving the single wavelength optical signals delivered by the plurality of optical signal modulation subunits (2012) and delivering to the corresponding first optical path (30).
  6. 6. The apparatus of claim 1, wherein the lightwave filter (60) comprises: The reflecting surface (601) and the transparent surface (602) are arranged opposite to each other, and the reflecting surface (601) is obliquely arranged towards one side, close to the signal receiving module (50), of the second optical path (40); The reflecting surface (601) is used for reflecting single-wavelength optical signals with selected wavelengths and transmitting optical signals with other wavelengths; the transparent transmission surface (602) is used for transmitting all the optical signals with the wavelengths.
  7. 7. An optical switching system, the system comprising: As in claim 1 6, And an optical switching device according to any one of claims.
  8. 8. The system of claim 7, wherein the system is applied to a data center, an input of the input conversion module is connected to at least one server or switch, and an output of the signal receiving module is connected to at least another server or switch.
  9. 9. The system of claim 8, wherein the system further comprises: and the controller is in communication connection with the input conversion module and is used for sending a control signal to the input conversion module based on target output port information in the data to be transmitted so as to control the input conversion module to generate an optical signal with a specific wavelength and inject the optical signal into a specific first optical path.
  10. 10. An optical switching control method, the method comprising: receiving data to be transmitted containing target output port information; determining a corresponding target wavelength and a target first light path according to the target output port information; and generating a control signal, wherein the control signal is used for controlling an input conversion module to generate an optical signal with the target wavelength and injecting the optical signal into the target first optical path.

Description

Optical switching device, system and control method Technical Field The present application relates to the field of optical switching technologies, and in particular, to an optical switching device, a system, and a control method. Background With the rapid development of the technologies such as the Internet, the Internet of things and artificial intelligence, the global data traffic shows explosive growth. For example, AI training clusters have extremely high bandwidth requirements, while corresponding cloud service providers need to handle massive amounts of data, and the electrical switches of data centers in the related art have difficulty meeting their requirements for high bandwidth, low latency, which has prompted the need for optical switching technology. The optical switching device disclosed in the related art includes a micro electro mechanical system-based optical switching device, a digital liquid crystal-based optical switching device, and a piezoelectric ceramic-based optical switching device. The switching time of each link in the optical switching device disclosed in the related art is far longer than the transmission time of the electrical switching, so that the switching time of the links is longer, and the requirement of the data transmission speed of the data center is difficult to meet. Disclosure of Invention The application provides an optical switching device, an optical switching system and a control method, which are used for solving the problem that the optical switching device disclosed in the related technology is difficult to meet the requirement of data transmission speed of a data center. In a first aspect, the present application provides an optical switching device, the device comprising: The device comprises an input conversion module, a plurality of first light paths, a plurality of second light paths and a signal receiving module; The output end of the input conversion module is connected with a plurality of first light paths, each first light path is respectively communicated with a plurality of second light paths along the arrangement direction of the first light paths, a light wave filter is arranged at the communication position of each second light path and the first light path, each light wave filter is used for reflecting a single-wavelength light signal corresponding to a selected wavelength to the second light path, and the output ends of the plurality of second light paths are connected with the signal receiving module; the input conversion module is used for generating a single-wavelength optical signal corresponding to the control signal based on the received control signal of the controller and sending the single-wavelength optical signal to the selected first optical path; The first optical path is used for transmitting the optical signal with single wavelength along the setting direction; The second light path is used for transmitting the single-wavelength optical signal reflected by the optical wave filter to the signal receiving module. According to the embodiment, the input conversion module is utilized to convert the electric signal into the optical signal with the single wavelength based on the control signal, the optical signal with the single wavelength is sent to the selected first optical path through the internal switching mechanism, and when the optical signal with the single wavelength moves to the optical wave filter with the corresponding wavelength along the first optical path, the optical signal is reflected to the second optical path by the optical wave filter and then is transmitted to the signal receiving module through the second optical path, so that the directional distribution of the optical signal is realized, the time consumption caused by utilizing the link switching in the related technology is greatly shortened, and the defect that the optical switching device disclosed in the related technology is difficult to meet the data transmission speed requirement of the data center is overcome. In an alternative embodiment, the input conversion module includes: and each input conversion unit is connected with one first optical path and used for transmitting the generated single-wavelength optical signals to the corresponding first optical paths. Through the embodiment, each input conversion unit is respectively connected with the corresponding first optical path, so that each input conversion unit is guaranteed to be in one-to-one correspondence with one first optical path, different input conversion units can conveniently generate corresponding single-wavelength optical signals according to the respective accessed control signals, each single-wavelength optical signal is transmitted to the first optical path, and independent and accurate transmission control of a plurality of single-wavelength optical signals is realized. In an alternative embodiment, the input conversion unit includes: The optical signal integration subunit and the p