Parallel Multi-Channel Transmission Optical Components with Backlight Monitoring

Abstract

The invention provides a parallel multi-channel transmission light assembly with backlight monitoring, comprising a lens base, an incident collimation lens array, a backlight monitoring collimation lens array, an outgoing focusing lens array, a VCSEL chip array and a backlight monitoring chip array; The incident collimating lens array and the backlight monitoring collimating lens array are arranged on the same side of the lens base, and the outgoing focusing lens array is arranged on the other side of the lens base; The first 45° interface and the second 45° interface, and the lens base is also provided with a third 45° interface and a fourth 45° interface perpendicular to each other. The invention can realize the backlight monitoring of parallel multi-channel transmission, and does not need to add additional lenses while realizing the backlight monitoring function, and makes full use of the parallel optical path channels of the array lens, which is not only conducive to the realization of the active coupling packaging scheme, but also the realization of Passive coupling package solution.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a parallel multi-channel transmission optical component with backlight monitoring. Background technique [0002] With the rapid growth of services such as the Internet, cloud computing, and big data, the large-scale construction of large-capacity and high-bandwidth data centers is being promoted. In the field of optical communication, VCSEL lasers are used as light sources to achieve high-bandwidth transmission, and parallel multi-channels are used to achieve large capacity. [0003] In practical applications, the VCSEL laser is in a non-airtight environment, and the performance of the laser is easily affected by the environment. In particular, the threshold current and output optical power change with temperature and age with long-time operation. In order to ensure that the laser maintains a stable output optical power during use, the output optical power should be monitor...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a parallel multi-channel transmission optical assembly for backlight monitoring, which aims to solve the problem that the existing optical assembly cannot realize the backlight monitoring of more channels and that all channels of the existing array lens are not fully used

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