CN-122027032-A - Optical device, optical network unit and rate switching method

CN122027032ACN 122027032 ACN122027032 ACN 122027032ACN-122027032-A

Abstract

The application discloses an optical device, an optical network unit and a rate switching method. The public optical interface module is used for accessing the external optical fiber. The set of communication rates supported by the plurality of optical transceiver modules includes at least two different communication rates. The optical splitting element is used for distributing the optical signals of the common optical interface module to all the optical transceiver modules simultaneously. In this way, the application uses the optical splitting element to simultaneously distribute the input optical signals to each optical transceiver module by arranging the common optical interface module, the optical transceiver modules supporting multiple communication rates and the optical splitting element. The optical transceiver module with the corresponding speed is activated only by software switching when the network is upgraded, and the optical cat or the optical device is not required to be replaced manually, so that the labor cost and the material cost of the network upgrading are obviously reduced, and the upgrading efficiency and the user experience are greatly improved.

Inventors

WANG QIAO
ZHAO BIAO
CHEN YUWEN
YANG YUHAO
WU WEIXING
ZHAO FULIN

Assignees

深圳市力子光电科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (10)

1. An optical device, comprising: the public optical interface module is used for accessing an external optical fiber; a plurality of optical transceiver modules, wherein the set of communication rates supported by the plurality of optical transceiver modules includes at least two different communication rates, and And the optical splitting element is used for distributing the optical signals of the public optical interface module to all the optical transceiver modules at the same time.
2. The optical device according to claim 1, wherein the plurality of optical transceiver modules includes a first optical transceiver module and a second optical transceiver module, a communication rate of the first optical transceiver module and a communication rate of the second optical transceiver module are different, and the common optical interface module, the first optical transceiver module and the second optical transceiver module are sequentially connected through optical fibers; The optical signals coming from the public optical interface module form a first optical signal and a second optical signal after being acted by the light splitting element, the first optical signal is transmitted to the first optical transceiver module, and the second optical signal is transmitted to the second optical transceiver module.
3. The optical device according to claim 2, wherein the light splitting element comprises a glass slide and a light splitting film layer, the light splitting film layer is disposed on the glass slide, the first optical signal is formed after the optical signal coming from the common optical interface module is transmitted through the light splitting film layer, and the second optical signal is formed after the optical signal coming from the common optical interface module is reflected through the light splitting film layer.
4. The optical device of claim 2, wherein the first optical transceiver module comprises a housing, a glass tube disposed within the housing, a collimating lens, a focusing lens, and a photodetector; The light splitting element is arranged in the shell, and the glass tube, the collimating lens, the light splitting element, the focusing lens and the photoelectric detector are sequentially arranged at intervals along the light path direction of the first optical signal.
5. The optical device of claim 4, further comprising a first optical fiber and a second optical fiber, wherein one end of the first optical fiber is connected to the common optical interface module, the other end of the first optical fiber is connected to the glass tube, one end of the second optical fiber is connected to the glass tube, and the other end of the second optical fiber is connected to the second optical transceiver module.
6. The optical device of claim 4, wherein the photodetector is a TO-packaged photodetector.
7. The optical device of claim 1, wherein a plurality of the optical transceiver modules are configured to receive optical signals of the same wavelength; And/or the light splitting element is a non-wavelength selective light splitting element, and the light splitting element has fixed transmittance and reflectivity at the working wavelength.
8. An optical network unit comprising a housing, a main circuit board, and an optical device according to any one of claims 1 to 7, the optical device being disposed within the housing and electrically connected to the main circuit board.
9. A rate switching method applied to the optical device of any one of claims 1 to 7, the method comprising: responding to a rate switching instruction; Determining a target optical transceiver module from a plurality of optical transceiver modules according to the rate switching instruction; And controlling the target optical transceiver module to work.
10. The rate switching method according to claim 9, wherein the controlling the target optical transceiver module to operate includes: pre-activating the target optical transceiver module; and after detecting that the target optical transceiver module is initialized, controlling the target optical transceiver module to be in a working state.

Description

Optical device, optical network unit and rate switching method Technical Field The present application relates to the field of optical communications technologies, and in particular, to an optical device, an optical network unit, and a rate switching method. Background With the rapid development of optical fiber communication technology, fiber-to-the-home has become the dominant way of broadband access. In the application scenario of the optical network unit, as the bandwidth requirement of the user increases continuously, the transmission rate of the optical communication system has evolved from 2.5G, 10G to higher rates. In existing optical network upgrades, the optical devices in the optical cat typically need to be replaced according to new rate standards. However, existing optical devices usually only support a single rate, and when the network is upgraded, operators must send professionals to visit to replace optical cats or optical modules inside the optical cats, which not only results in high labor cost, but also causes waste of old equipment, and reduces the efficiency of the network upgrade. Therefore, how to design an optical device that can be compatible with multiple rates without manually replacing hardware is a technical problem that needs to be solved currently. Disclosure of Invention The embodiment of the application provides an optical device, an optical network unit and a rate switching method, which can solve at least one technical problem. In a first aspect, an embodiment of the present application provides an optical apparatus, including: the public optical interface module is used for accessing an external optical fiber; A plurality of optical transceiver modules, each of which is configured to support a set of communication rates including at least two different communication rates, and And the optical splitting element is used for distributing the optical signals of the public optical interface module to all the optical transceiver modules at the same time. In some embodiments, the plurality of optical transceiver modules includes a first optical transceiver module and a second optical transceiver module, the communication rate of the first optical transceiver module and the communication rate of the second optical transceiver module are different, and the common optical interface module, the first optical transceiver module and the second optical transceiver module are sequentially connected through an optical fiber; the optical signals coming in from the public optical interface module form a first optical signal and a second optical signal after being acted by the light splitting element, the first optical signal is transmitted to the first optical transceiver module, and the second optical signal is transmitted to the second optical transceiver module. In some embodiments, the light splitting element includes a glass slide and a light splitting film layer, the light splitting film layer is disposed on the glass slide, the light signal coming from the common optical interface module forms a first light signal after being transmitted by the light splitting film layer, and the light signal coming from the common optical interface module forms a second light signal after being reflected by the light splitting film layer. In some embodiments, the first optical transceiver module includes a housing, a glass tube disposed within the housing, a collimating lens, a focusing lens, and a photodetector; The light splitting element is arranged in the shell, and the glass tube, the collimating lens, the light splitting element, the focusing lens and the photoelectric detector are sequentially arranged at intervals along the light path direction of the first optical signal. In some embodiments, the optical device further comprises a first optical fiber and a second optical fiber, wherein one end of the first optical fiber is connected to the common optical interface module, the other end of the first optical fiber is connected to the glass tube, one end of the second optical fiber is connected to the glass tube, and the other end of the second optical fiber is connected to the second optical transceiver module. In some embodiments, the photodetectors are TO-packaged photodetectors. In some embodiments, the plurality of optical transceiver modules are configured to receive optical signals of the same wavelength; and/or the spectroscopic element is a non-wavelength selective spectroscopic element, the spectroscopic element having a fixed transmittance and reflectance at its operating wavelength. In a second aspect, an embodiment of the present application provides an optical network unit, including a housing, a main circuit board, and an optical device according to any of the foregoing embodiments, where the optical device is disposed in the housing and electrically connected to the main circuit board. In a third aspect, an embodiment of the present application provides a rate switching method