Optical module

An optical module and beam technology, applied in the field of optical modules, can solve problems such as fluctuations in optical path coupling efficiency, and achieve the effect of improving coupling efficiency and achieving high-precision optical alignment

Pending Publication Date: 2021-10-22
HISENSE BROADBAND MULTIMEDIA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides an optical module to solve the problem that the current TO-packaged optical module is prone to fluctuations in optical coupling efficiency due to the sealing accuracy of the TO tube cap

Method used

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Embodiment Construction

[0034] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0035] One of the core links of optical fiber communication is the mutual conversion of optical and electrical signals. Optical fiber communication uses optical signals carrying information to be transmitted in information transmission equipment such as optical fibers / optical waveguides, and the passive transmission characteristics of light i...

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Abstract

The invention discloses an optical module, which comprises a circuit board and a light emitting device. The light emitting device comprises the following components of: a TO tube seat; a TO tube cap arranged on the TO tube seat in a covering manner; a laser which is arranged on the surface of the TO tube seat and used for emitting signal light beams, and the light emitting direction of the laser is not consistent with the light transmitting direction of the TO tube cap; a reflector which is provided with a bottom plateau, a top plateau and an inclined plane, wherein the bottom plateau is fixed on the TO tube seat, and the inclined plane is used for reflecting the signal light beams from the laser, so that the light emitting direction of the reflected signal light beams is consistent with the light transmitting direction of the TO tube cap; a lens which is arranged on the surface of the top plateau of the reflector and is used for converging the reflected signal light beams; and a photodiode which is arranged on one side, opposite to the reflector, of the laser and used for detecting the optical power of the light beams emitted by the laser. The lens is arranged on the TO tube seat, optical high-precision alignment of the lens relative to the laser is achieved through the reflector, and the optical path coupling efficiency is greatly improved.

Description

technical field [0001] The present application relates to the technical field of optical fiber communication, and in particular to an optical module. Background technique [0002] The optical module is mainly used for photoelectric and electro-optical conversion. Its transmitting end converts electrical signals into optical signals and transmits them through optical fibers, and its receiving end converts received optical signals into electrical signals. Currently, the packaging forms of optical modules mainly include TO (Transistor-Outline, coaxial) packaging and COB (Chip on Board, chip-on-board) packaging. [0003] The core components of the optical module are the laser LD and the photodiode PD. The function of the laser is to convert the electrical signal into an optical signal, and the optical signal is coupled into the optical fiber to realize the transmission of the signal. The percentage of the total light intensity emitted by the laser that can be coupled into the o...

Claims

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Application Information

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IPC IPC(8): G02B6/42
CPCG02B6/428G02B6/4214G02B6/4204G02B6/4296
Inventor 邵乾刘维伟张占鹏任乐燕
Owner HISENSE BROADBAND MULTIMEDIA TECH
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