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Light module

An optical module and laser technology, applied in the field of optical modules, can solve the problems affecting the optical coupling effect, etc., to achieve the effect of ensuring the optical coupling effect, reducing the return loss of received light, and reducing the impact

Active Publication Date: 2019-11-19
HISENSE BROADBAND MULTIMEDIA TECH
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  • Abstract
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Problems solved by technology

[0005] The invention provides an optical module to solve the problem that the existing optical module is prone to produce optical return loss and affect the optical coupling effect

Method used

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Embodiment Construction

[0033] One of the core links of optical fiber communication is the conversion of photoelectric signals. Optical fiber communication uses optical signals carrying information to be transmitted in optical fibers / optical waveguides, and low-cost, low-loss information transmission can be achieved by using the passive transmission characteristics of light in optical fibers. However, information processing equipment such as computers use electrical signals, which requires mutual conversion between electrical signals and optical signals during signal transmission.

[0034] The optical module realizes the above-mentioned photoelectric conversion function in the field of optical fiber communication technology, and the mutual conversion between optical signals and electrical signals is the core function of the optical module. The optical module realizes the electrical connection with the external host computer through the gold finger on the circuit board. The main electrical connection ...

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Abstract

The invention discloses a light module, which includes a casing and a fiber adapter located at one end of the casing. The casing internally includes a laser chip, a first filter sheet, a reflection sheet, a second filter sheet, a reflective prism assembly, and a light receiving chip. The light signal emitted by the laser chip enters the fiber adapter through the first filter sheet and is emitted;the light signal from the fiber adapter is reflected by the first filter sheet and the reflection sheet and is emitted to the reflective prism assembly through the second filter sheet; the light incoming surface of the reflective prism assembly and the propagation direction of the light signal present a non-vertical angle; the non-vertical angle can reduce the return loss of the received light; the tail end surface of the reflective prism assembly is an oblique reflective bevel, the light signal is propagated to the reflective bevel and is reflected and is then emitted to a light outgoing bottom surface and is received by a light receiving chip below the light outgoing bottom surface. Thus, according to the light module provided by the invention, the light incoming surface of the reflective prism assembly is subjected to inclined treatment, the return loss of the received light can be reduced, influences on light signal transmission are further reduced, and the light coupling effects are ensured.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to an optical module. Background technique [0002] Due to the increasingly high requirements for communication bandwidth in the field of optical fiber communication, the global optical communication is in a period of rapid development. In the field of high-speed data communication, in order to ensure long-distance high-speed transmission of data, optical modules are usually used in this field to realize the transmission and reception of light of different wavelengths. [0003] Existing optical modules generally refer to integrated modules for photoelectric conversion, which are respectively equipped with corresponding optical fiber adapters for the light emitting device and the light receiving device to form a coaxially packaged optical module. However, due to the large volume of the optical fiber adapter, the optical module is adapted to two optical fiber adap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
CPCG02B6/4204G02B6/4206G02B6/4208G02B6/4214G02B6/4215G02B6/4244
Inventor 葛建平傅钦豪黄绪杰谢一帆
Owner HISENSE BROADBAND MULTIMEDIA TECH
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