Array element of beam splitting lens

Abstract

The invention relates to an array element of a beam splitting lens. The array element comprises a body, wherein a critical angle formed when incident light with the wavelength of 850nm enters the body to perform total reflection is smaller than 45 degrees. A first lateral surface is provided with a micro lens array A and a micro lens array C, a second lateral surface is provided with a micro lens array B, a third lateral surface is provided with two grooves recessed inwards, and the bottoms surfaces of the grooves are inclined surfaces. A first optical interface and a second optical interface are formed respectively, a 45-degree included angle is formed by the first optical interface and the first lateral surface, a 45-degree included angle is formed by the second optical interface and the first lateral surface, and the first optical interface is perpendicular to the second optical interface. After light penetrating through the micro lens array A is totally reflected by the first optical interface, one part of light enters the micro lens array C after being totally reflected by the second optical interface, the other part of light directly enters the micro lens array B, and the light entering the micro lens array C is used for monitoring backlight. A backlight monitoring function of QSFP and optical packaging can be achieved by means of the array element of the beam splitting lens. The array element of the beam splitting lens is simple in structure and low in cost.

Description

technical field [0001] The invention relates to a spectroscopic lens array element, which belongs to the field of optical fiber communication. Background technique [0002] At present, QSFP+ is a fiber optic solution born to meet the market demand for high-density, high-speed pluggable solutions. QSFP+ interfaces are widely used in: switches, routers, host adapter buses, enterprise storage, high-density, high-speed I / O and multi-channel interconnection. QSFP+ 4-channel pluggable interface transmission rate can reach 40Gbps, and can support data transmission of four channels at a speed of 10Gbps per channel under the same port volume of XFP, so the transmission density of QSFP+ can reach 4 times that of XFP products, and SFP+ products 3 times. [0003] attached figure 1 , figure 2 as well as image 3 It is a solution for the optical packaging part of the QSFP+ module of the traditional lens array element. The core of the solution is the lens array element with the func...

AI Technical Summary

Problems solved by technology

When the module fails (such as the module’s forward light output becomes smaller), the cause of the module failure can be quickly checked, but the addition of the backlight monitoring function to the QSFP+ module will correspondingly increase the difficulty of optical packaging, resulting in a complex structure and high cost.

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