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VCSEL Core Technologies and Innovations


Raysees VCSEL technology is not built on imitation, but on original innovation. We focus on solving the core bottlenecks of VCSELs in optical sensing — performance, mass production, and application integration — driving continuous breakthroughs from chip design to system deployment.


  • Epitaxial Design

  • Device Design

  • Electromagnetic Simulation

  • Thermal Management

Solving Key Challenges

  • How can VCSELs break performance limits for advanced optical applications?
  • How do we simplify optical system integration while maximizing VCSEL system performance?
  • How can VCSELs deliver higher performance for complex optical applications?

Highlights

  • Automotive 2D Addressable VCSEL

    Automotive 2D Addressable VCSEL

    Pixel-level control
    for robust LiDAR

  • High-Density Random Array

    High-Density Random Array

    <24 µm pitch
    higher density

  • Oxide-Confined Narrow-Divergence VCSEL

    Oxide-Confined Narrow-Divergence VCSEL

    <15° divergence for
    compact optics.

  • Single-Mode Polarized VCSEL

    Single-Mode Polarized VCSEL

    Stable polarization
    high-SNR sensing

  • Flip-Chip VCSEL

    Flip-Chip VCSEL

    Microlens integration
    for beam shaping

  • Multi-Junction VCSEL

    Multi-Junction VCSEL

    High optical density
    for compact devices

  • Red VCSEL

    Red VCSEL

    Visible emission for
    health sensing

  • Automotive CW VCSEL

    Automotive CW VCSEL

    Validated CW reliability
    for automotive systems

Core VCSEL Technologies

Solving industry bottlenecks through proprietary chip innovation

  • 01 2D Addressable VCSEL

  • 02 Ultra-Low-Divergence VCSEL

  • 03 Backside-Emitting Microlens VCSEL

  • 04 High Power Density & High Peak Power VCSEL

  • 05 High-Speed Datacom VCSEL

Raysees 2D Addressable VCSEL enables pixel-level electrical addressing at the chip level. Built on a highly uniform vertical-cavity resonant architecture, it supports selective pixel activation, dynamic pattern projection, and programmable timing control — delivering higher optical power density and greater system flexibility for intelligent LiDAR sensing.

Raysees Ultra-Low-Divergence VCSEL technology uses advanced chip architecture and process optimization to achieve <15° beam divergence while maintaining high optical output power. It reduces optical crosstalk between the transmit and return paths, enabling more compact proximity sensing modules, simplified optical design, and higher-precision distance measurement.

Raysees backside-emitting microlens-integrated VCSEL uses a flip-chip architecture for faster pulse rise/fall times and higher peak optical power. By integrating microlenses on the backside-emitting VCSEL, it improves beam control while reducing optical stack height — enabling compact sensing modules for space-constrained smartphones, VR, and AR systems.

Raysees high-power-density, high-peak-power VCSEL technology delivers several times higher optical output power without increasing chip size, while improving power conversion efficiency. It enables compact, long-range optical sensing systems for applications such as 3D dToF and LiDAR.

High-speed VCSELs serve as core light sources for short-reach interconnects in data centers and AI clusters, primarily in parallel optical links. Optimized for array uniformity, modulation performance, and long-term reliability, they enable scalable bandwidth, controlled power consumption, and stable operation for next-generation optical modules.

量产制造

Scalable VCSEL Manufacturing

Raysees delivers high-quality VCSEL chips at scale, with optimized process control, proven reliability, and stable wafer-level yield above 90%. With over 200 million chips shipped, Raysees has built a mature volume manufacturing platform supported by world-class epitaxy and wafer foundry partners.


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