1.6 T SR8 optical engine
By independently coupling the array VCSEL chip to the TX lens and the array PD chip to the RX lens, and by adding carbon powder inside the TX lens, the problems of high coupling accuracy and high cost in traditional optical engines are solved, achieving rapid coupling and low-cost production.
CN224553544UActive Publication Date: 2026-07-24UNI-LIGHT HEFEI ELECTRONICS TECH CO LTD
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Patent Information
- Application Number
- CN202522291480.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-10-29
AI Technical Summary
Technical Problem
In the traditional 1.6T SR8 optical engine, the photosensitive surface of the PD chip with a single wavelength of 200G is small and the coupling tolerance is small, resulting in high patching precision, slow coupling speed and high cost.
Method used
The array VCSEL chip is coupled to the TX lens, and the array PD chip is coupled to the RX lens. They are coupled independently, and carbon powder is added to the TX lens to increase light attenuation. The array chip is a 2×4 array, which reduces the requirements for patch precision.
Benefits of technology
It improves coupling speed and product yield, reduces production costs, and avoids the use of additional attenuation plates.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to a 1.6 T SR8 optical engine, which comprises a PCB (printed circuit board), a TX lens and an RX lens, the TX lens and the RX lens are arranged on the PCB, an array Vcsel chip and a Driver chip are arranged in a coverage area of the TX lens on the PCB, the array Vcsel chip is coupled with the TX lens, and the Driver chip is electrically connected with the array Vcsel chip; an array PD chip and a TIA chip are arranged in the coverage area of the RX lens on the PCB, the array PD chip is coupled with the RX lens, and the TIA chip is electrically connected with the array PD chip. The method has the advantages that the array Vcsel chip is only coupled with one TX lens, the array PD chip is only coupled with one RX lens, the TX lens only guarantees the annular flux of the Vcsel chip during coupling, the RX lens only guarantees the responsivity of the PD chip, the coupling speed is high, the product performance is optimal, and the yield is high.
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