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CN-121995584-A - Optical module

CN121995584ACN 121995584 ACN121995584 ACN 121995584ACN-121995584-A

Abstract

The present disclosure provides an optical module including a first light emitting part, a first light receiving part, and a signal processing chip disposed along a first propagation direction of a first optical signal, the first light receiving part including a first reflection surface, a second reflection surface, a third reflection surface, and a light receiving chip, the first reflection surface being disposed on an optical path of the first propagation direction, the second reflection surface being disposed on an optical path of the second propagation direction, the third reflection surface being located on a reflection light path of the second reflection surface, the light receiving chip being located on a reflection light path of the third reflection surface. The first optical signal is reflected once through the first reflecting surface and then reflected once through the second reflecting surface, so that the propagation direction of the first optical signal is bent twice, the placing direction of the first optical receiving component is bent twice, the size of the first optical receiving component along the first propagation direction of the first optical signal is shortened, and the distance between the first optical transmitting component and the signal processing chip is shortened.

Inventors

  • ZHANG KAI
  • LI CHUANBIN
  • WANG TENGFEI

Assignees

  • 青岛海信宽带多媒体技术有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (10)

  1. 1. An optical module, comprising: The surface of the circuit board is provided with a signal processing chip; The first light receiving component is positioned on the surface of the circuit board and is used for receiving a first light signal; The first light emitting component is embedded in the circuit board or is positioned on the same surface of the circuit board as the first light receiving component and is electrically connected with the signal processing chip for emitting a second light signal; Wherein the first light receiving section includes: The first optical signal is reflected by the first reflecting surface, so that the propagation direction of the first optical signal is changed from the first propagation direction to the second propagation direction; The first optical signal is reflected by the second reflecting surface, so that the propagation direction of the first optical signal is changed from the second propagation direction to a third propagation direction, and the third propagation direction is different from the first propagation direction; The third reflecting surface is positioned on the reflecting light path of the second reflecting surface; The light receiving chip is positioned on the reflection light path of the third reflection surface; and the light receiving matching chip is electrically connected with the signal processing chip.
  2. 2. The optical module of claim 1, wherein the first light receiving means comprises: a collimating element comprising: the first tail fiber is oriented to the first reflecting surface and is used for transmitting a single beam of first optical signals with a plurality of wavelengths; The optical demultiplexer is positioned on the reflection optical path of the second reflecting surface, so that the optical demultiplexer and the collimating element are positioned on the same side of the second reflecting surface; the first lens array is positioned in the light emitting direction of the optical demultiplexer and positioned on the incident light path of the third reflecting surface.
  3. 3. The optical module of claim 1, wherein the first light receiving means comprises: The optical fiber array faces the first reflecting surface and comprises a plurality of tail fibers for transmitting a plurality of first optical signals; the first lens array is positioned on the incident light path of the third reflecting surface and on the reflecting light path of the second reflecting surface, so that the first lens array and the optical fiber array are positioned on the same side of the second reflecting surface.
  4. 4. The optical module of claim 1, wherein the first optical signal is reflected by the first reflecting surface and is not directed to the surface of the circuit board, the first optical signal is reflected by the second reflecting surface and is not directed to the surface of the circuit board, and the first optical signal is reflected by the third reflecting surface and is directed to the surface of the circuit board.
  5. 5. The light module of claim 1 wherein the second reflective surface is inclined toward the first reflective surface.
  6. 6. The optical module of claim 1, wherein the first reflecting surface and the second reflecting surface form a first displacement prism, the first reflecting surface and the second reflecting surface are different surfaces of the first displacement prism, the first reflecting surface and the second reflecting surface are respectively connected with an incident light emitting surface of the first displacement prism, and an inclination direction of the first reflecting surface relative to the incident light emitting surface is different from an inclination direction of the second reflecting surface relative to the incident light emitting surface.
  7. 7. The light module of claim 1 wherein the first reflective surface and the second reflective surface comprise a first displacement prism, the first displacement prism being a trapezoid, the first reflective surface and the second reflective surface being two opposing inclined surfaces of the trapezoid.
  8. 8. An optical module, comprising: The surface of the circuit board is provided with a signal processing chip; The first light receiving component is positioned on the surface of the circuit board and is used for receiving a first light signal; The first light emitting component is embedded in the circuit board or is positioned on the same surface of the circuit board as the first light receiving component and is electrically connected with the signal processing chip for emitting a second light signal; Wherein the first light receiving section includes: The first optical signal is reflected by the first reflecting surface, so that the propagation direction of the first optical signal is changed from the first propagation direction to the second propagation direction; the third reflecting surface is positioned on the reflecting light path of the first reflecting surface; The light receiving chip is positioned on the reflection light path of the third reflection surface; and the light receiving matching chip is electrically connected with the signal processing chip.
  9. 9. The optical module of claim 8, wherein the first light emitting component, the light receiving matching chip, and the signal processing chip are disposed along the first propagation direction, and the light receiving chip and the light receiving matching chip are disposed along another direction.
  10. 10. An optical module, comprising: The surface of the circuit board is provided with a signal processing chip; the first light receiving component and the signal processing chip are positioned on different surfaces of the circuit board and are used for receiving a first light signal; Wherein the first light receiving section includes: The first optical signal is reflected by the first reflecting surface, so that the propagation direction of the first optical signal is changed from the first propagation direction to the second propagation direction; The first optical signal is reflected by the second reflecting surface, so that the propagation direction of the first optical signal is changed from the second propagation direction to a third propagation direction, and the third propagation direction is different from the first propagation direction; The third reflecting surface is positioned on the reflecting light path of the second reflecting surface; The light receiving chip is positioned on the reflection light path of the third reflection surface; and the light receiving matching chip is electrically connected with the signal processing chip.

Description

Optical module Technical Field The disclosure relates to the technical field of optical fiber communication, and in particular relates to an optical module. Background With the development of new business and application modes such as cloud computing, mobile internet, video and the like, the development and progress of optical communication technology become more and more important. In the optical communication technology, the optical module is a tool for realizing the mutual conversion of optical signals, is one of key devices in optical communication equipment, and the transmission rate of the optical module is continuously improved along with the development of the optical communication technology. Disclosure of Invention The present disclosure provides an optical module that shortens a distance between a first light emitting part and a signal processing chip. In some embodiments, there is provided an optical module comprising: The surface of the circuit board is provided with a signal processing chip; a first light receiving part, which is positioned on the surface of the circuit board and is used for receiving a first light signal; the first light emitting component is embedded in the circuit board or is positioned on the same surface of the circuit board as the first light receiving component and is electrically connected with the signal processing chip for emitting a second light signal; Wherein the first light receiving section includes: the first optical signal is reflected by the first reflecting surface, so that the propagation direction of the first optical signal is changed from the first propagation direction to the second propagation direction; The first optical signal is reflected by the second reflecting surface, so that the propagation direction of the first optical signal is changed from the second propagation direction to a third propagation direction, and the third propagation direction is different from the first propagation direction; the third reflecting surface is positioned on the reflecting light path of the second reflecting surface; the light receiving chip is positioned on the reflection light path of the third reflection surface; the light receiving matching chip is electrically connected with the signal processing chip. The technical scheme has the advantages that the first light emitting part is embedded into the circuit board or is positioned on the same surface of the circuit board with the first light receiving part, and the first light emitting part and the first light receiving part cannot be arranged in parallel along the width direction of the circuit board due to the limited width dimension of the circuit board, so that the first light emitting part and the first light receiving part are arranged along the length direction of the circuit board, namely, the first light emitting part and the first light receiving part are arranged along the first propagation direction of the first optical signal. The light receiving matching chip of the first light receiving section and the first light emitting section are both connected to the signal processing chip through a high-speed data link. From the viewpoint of impedance matching, the shorter the distance between the first light emitting member and the signal processing chip is, the better. Since the first light emitting part, the first light receiving part, and the signal processing chip are disposed along the first propagation direction of the first optical signal, the distance between the first light emitting part and the signal processing chip can be shortened by shortening the size of the first light receiving part along the first propagation direction of the first optical signal. The first light receiving part comprises a first reflecting surface, a second reflecting surface, a third reflecting surface and a light receiving chip, wherein the first reflecting surface is arranged on an optical path in a first propagation direction, the first light signal is subjected to primary total reflection through the first reflecting surface so that the propagation direction of the first light signal is converted into a second propagation direction from the first propagation direction, the second reflecting surface is arranged on an optical path in the second propagation direction, and the first light signal is subjected to primary total reflection through the second reflecting surface so that the propagation direction of the first light signal is converted into a third propagation direction from the second propagation direction. The third reflecting surface is positioned on the reflecting light path of the second reflecting surface, and the light receiving chip is positioned on the reflecting light path of the third reflecting surface, so that the light receiving chip receives the first light signal reflected by the first reflecting surface. The third propagation direction is different from the first propagation direction, and the p