VCSEL device

By designing adjustment components in the VCSEL device, adjusting the distance between the grating lens and the chip, the problem of distance cannot be adjusted in the prior art is solved, and the optical signal transmission characteristics and coupling efficiency are optimized, and signal purity and adaptability are improved.

CN119695632AInactive Publication Date: 2025-03-25SHENZHEN LEPOWER CO LTD
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Patent Information

Application Number
CN202510196271.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the existing VCSEL devices, the distance between the VCSEL chip and the receiving sensor chip and the grating lens cannot be adjusted, which limits the application of the device.

Method used

A VCSEL device including a base, a VCSEL chip, a receiving sensor chip, a first grating lens and a second grating lens are designed. By separating the internal space of the base into a first cavity and a second cavity through the adjustment component, adjusting the distance between the grating lens and the chip is realized.

Benefits of technology

By adjusting the distance between the grating lens and the chip, the divergence angle or focus of the light beam can be flexibly adjusted, the transmission characteristics and coupling efficiency of the optical signal can be optimized, the signal purity can be improved, and the signal is compatible with more types of optical systems.

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Abstract

The invention provides a VCSEL (Vertical Cavity Surface Emitting Laser) device. The VCSEL device specifically comprises a base, a VCSEL chip and a receiving sensor chip, since the distance between the first grating lens and the VCSEL chip is adjustable, the divergence angle or focus point of the light beam can be flexibly adjusted, thereby optimizing the transmission characteristic of the optical signal. As the distance between the second grating lens and the receiving sensor chip is adjustable, the incident angle and the focal length of the light beam can be optimized, and the coupling efficiency of the optical signal is improved. The positions of the first grating lens and the second grating lens are adjusted through the adjusting assembly, and adaptive adjustment can be performed according to different application scenes, so that the optical system is compatible with more types of optical systems. Besides, the internal space of the VCSEL device is divided into the first cavity and the second cavity through the adjusting assembly, so that the interference between the two optical systems is effectively reduced, and the signal purity is improved. Therefore, the technical problem that the distance between the VCSEL chip and the grating lens and the distance between the receiving sensor chip and the grating lens cannot be adjusted in the prior art is solved.
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