an optical module

Abstract

The present application provides an optical module, including: a circuit board with a power supply circuit and a signal circuit for supplying power and providing electrical signals; a light source connected to the power supply circuit for emitting light that does not carry signals; a first optical fiber ribbon , one end is connected to the light source, and the other end is connected to the silicon photonic chip, which is used to transmit the outgoing light emitted by the light source to the silicon photonic chip; the silicon photonic chip receives light from the light source through the first optical fiber ribbon The outgoing light is electrically connected to the signal circuit, and is used to generate signal-carrying light according to electrical signal modulation; the silicon photonic chip also includes a light splitting unit and several groups of light modulation units; the input end of the light splitting unit is connected to the input port of the silicon photonic chip, and the light splitting unit The output end of each group of light modulation units is correspondingly connected to the input end of each group of light modulation units, and the output end of each group of light modulation units is correspondingly connected to the output port of the silicon photonic chip through the optical waveguide. Realizing the multi-channel output of modulated optical signals by the optical module is conducive to meeting the high-speed development requirements of the optical module.

Description

technical field [0001] The present application relates to the technical field of optical communication, and in particular to an optical module. Background technique [0002] In the field of optical fiber communication, the optical module is a tool to realize the mutual conversion of photoelectric signals, and it is one of the key components in optical communication equipment. At the same time, with the development and demand of emerging services such as cloud computing and mobile Internet, the requirements for the rate of optical modules are getting higher and higher, and the types of corresponding optical modules are also increasing. [0003] There is an optical module, which includes a laser box and a silicon photonic chip. The light emitted by the laser box can be optically coupled into the silicon photonic chip. The laser box is used as a light source for emitting optical signals, and the silicon photonic chip is used to modulate the optical signal. Usually, in the proc...

AI Technical Summary

Problems solved by technology

Usually, in the process of optical signal modulation, there will be 20%-30% loss of optical power. In order to meet the requirements of optical power, it is usually necessary to increase the luminous power of the laser chip in the laser box, and as the rate of optical modules becomes higher and higher The requirements of the optical module will lead to higher and higher requirements for the luminous power of the laser chip in the laser box. However, when the luminous power of the laser chip in the laser box increases, its cost will increase significantly, which will greatly increase the manufacturing cost of the optical module. , which is not conducive to the development of high-speed optical modules

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