Purpose-Built for Quantum Technology
We develop precision VCSEL solutions for atomic clocks, quantum technology,
and advanced photonic systems for research, industrial, and emerging quantum applications.
VCSEL Die
——Select VCSEL die by wavelength, output power, package type and application.
Ace Photonics provides VCSEL die from 760 nm to 895 nm, with solutions specifically developed for quantum technology, atomic sensing, spectroscopy and other precision photonic applications.
To meet the requirements of magnetically sensitive quantum systems, Ace Photonics offers multiple non-magnetic packaging options, including TO, SMD and customized package configurations. Bare die, standard packages and fully customized assemblies are also available. Wavelength, output power, package materials, optical windows, thermal-control components and mechanical structures can be customized according to specific application requirements.
VCSELs emit light vertically from the chip surface, enabling compact device structures, wafer-level testing and flexible integration. Their wavelength can be controlled through device design, drive current and temperature, making them well suited to precision optical and atomic sensing systems.
Ace Photonics has experience supporting research institutes and industry partners with 795 nm and 895 nm VCSEL solutions, including multiple output-power options, non-magnetic packaging and customized integration for different atomic clock, magnetometer and spectroscopy designs.
Die Drawings: Aperture Quantities
How to Choose a VCSEL Die
1. Wavelength
Choose the target wavelength and tolerance according to your application.
2. Output Power
Specify the required optical power based on system losses and operating conditions.
3. Spectral Characteristics
Confirm requirements for linewidth, mode behavior, wavelength stability and polarization.
4. Package
Select bare die, TO, SMD, non-magnetic or custom packaging according to integration needs.
5. Temperature
Consider the operating temperature range and whether thermistor or TEC control is required.
6. Application Requirements
Provide any special requirements such as beam divergence, magnetic restrictions, optical windows or custom testing.
Our VCSEL chip benefits from advanced semiconductor processing techniques that ensure optimal efficiency, reduced power consumption, and minimized heat generation. Our extensive range of bare die options is ideal for integration into various applications, including 3D sensing, facial recognition systems, LiDAR, optical communication networks, medical instrumentation, quantum sensing, and chip-scale quantum magnetometers.
Manufactured under stringent quality controls, our VCSEL die, SMD, VCSEL TO46 packages, and VCSEL non-magnetic package products provide unmatched flexibility, enabling seamless integration and customization within your product designs. Leveraging our cutting-edge wafer-level fabrication capabilities, each bare die undergoes rigorous testing and inspection, ensuring top-tier performance and durability.
VCSELs (vertical cavity surface emitting lasers VCSEL ) have various advantages over other types of lasers.
Include:
Surface emission, which offers design flexibility in addressable arrays
Low-temperature dependence of the lasing wavelength
Superior reliability
A wafer-level manufacturing process
These features make VCSELs better suited to various applications than conventional edge-emitting diode lasers and LEDs.
VCSEL technology includes epitaxial structure and chip design, epitaxial growth, front-end and back-end processing, packaging, and advanced testing and simulation. ACE PHOTONICS VCSELs are rated for operating ambient temperatures up to 100°C.
760 nm VCSELs for Oxygen Sensing
The oxygen (O₂) A-band is located around 760 nm, making this wavelength region important for optical oxygen sensing and absorption spectroscopy.
Ace Photonics provides 760 nm VCSEL dies for oxygen-sensing applications. Their compact size, low power consumption and wavelength tunability make them suitable for integration into compact optical gas-sensing systems.
For oxygen sensing, the VCSEL should be selected according to the specific absorption line and system requirements. Important parameters include:
Target wavelength and tuning range
Output power
Spectral characteristics
Operating temperature
Current and temperature tuning
Package configuration
Ace Photonics also supports TO, SMD, non-magnetic and customized packaging options according to the optical, mechanical and environmental requirements of the sensing system.
850 nm VCSELs for 3D Sensing
Ace Photonics provides 850 nm VCSEL dies with output-power options up to 3 mW for optical sensing and selected 3D sensing applications.
VCSELs offer several characteristics that support compact sensing systems, including small device size, fast modulation capability, symmetrical beam characteristics and compatibility with integrated optics.
The suitability of a specific 850 nm VCSEL for a 3D sensing system depends on the required optical power, beam divergence, modulation characteristics, field of illumination, operating distance and optical architecture.
Ace Photonics supports bare die, TO, SMD and customized packaging for 850 nm VCSEL applications.
Ace Photonics' single-mode VCSELs have the advantages of a wide operating temperature range and high wavelength and polarization stability. According to the difference in power and operating temperature, our products are divided into 0.1/1 mW and other series. The output power of our single-mode VCSEL is close to 5mW in the laboratory pre-development stage.
In addition, our single-mode VCSEL covers the 750-900nm band, improving energy efficiency while maintaining high output performance. Through integrated packaging, we integrate single-mode VCSEL chips with temperature controllers and temperature sensors to meet the requirements of various application environments.
Based on these advantages, we believe that single-mode VCSEL has become an ideal choice for atomic sensing spectroscopy, high-precision instruments, and other fields.
VCSELs possess performance advantages over both conventional LEDs and edge-emitting lasers.
Wafer Surface Emission
Surface emission allows full testing at the wafer level
High efficiency and low power consumption
Symmetric, low divergence output beams
Scalable die designs for high-power
Fast rise and fall times
Controllable single transversal mode and polarization
Exceptional wavelength stability with temperature
Flexibility in packaging
Ace Photonics VCSEL & Quantum Sensing
Vertical-Cavity Surface-Emitting Lasers (VCSELs) have become the light source of choice for modern quantum sensors. Their ultra-narrow linewidth, low threshold current, and superb beam quality let VCSELs efficiently pump or probe quantum media such as nitrogen-vacancy (NV) centers in diamond, alkali-vapor cells, and cold-atom ensembles.
Why Non-Magnetic Packaging VCSELs Matters
Quantum sensors detect minute magnetic, electric, or inertial signals; any ferromagnetic material in the opto-electronic package introduces stray fields that degrade accuracy. A non-magnetic VCSEL package—using ceramics, or specialty composites—keeps the magnetic background below the femtotesla level, preserves linewidth, and eliminates hysteresis drift during field sweeps. Commercial examples report order-of-magnitude improvements in signal-to-noise when substituting a non-magnetic VCSEL for a standard steel-can device.
Choose us
VCSEL epitaxial structures and device designs can be customized according to wavelength, optical power, spectral performance and application requirements.
Custom VCSEL Design
Semiconductor Processing Capability
Our device fabrication capabilities include ICP etching, wet oxidation, BCB processing and other VCSEL manufacturing processes.
Packaging and Application Support
We support bare die, TO, SMD, non-magnetic and customized packaging configurations for research, industrial and OEM applications.