Beam profile
In the far field, the intensity distribution of the single-mode VCSEL is perfectly Gaussian-shaped
Single-mode VCSEL
Single-mode VCSELs are the perfect choice for demanding sensor applications due to their improved optical characteristics. Higher-order longitudinal and transversal modes are suppressed by the innovative chip design; at the same time, the polarization is linearly stable.
Gaussian-shaped beam profile
The absolutely symmetrical and Gaussian-shaped beam profile makes the optical design of your application significantly easier.
Low beam divergence
A reproducible angle of divergence in the range of 20° (1/e2) or less makes beam guidance easier.
Low spectral width
The laser line with a spectral width of a typical figure of 100 MHz makes this laser perfect for spectroscopic applications.
Low power input
A power input in the range of a few milliwatts allows battery operation in mobile applications.
Optical encoder for high-precision positioning
Single-mode VCSELs are perfectly suited to use in optical encoders due to their Gaussian-shaped beam profile, their low power input, their long coherence length and their outstanding reliability.
FTIR (Fourier-transform infrared spectroscopy)
Due to the low temperature dependence of the emission wavelength (0.06 nm/K) and the narrowband spectral emission of typically 100 MHz, temperature-stabilized single-mode VCSELs are particularly suitable as a wavelength reference for FTIR spectrometers.
Oxygen sensors
Single-mode VCSELs are excellent for TDLAS applications (Tunable Diode Laser Absorption Spectroscopy). TDLAS systems benefit from the narrow line width and fine controllability offered by the single-mode VCSEL with TEC.
Highly precise depth sensor
Single-mode VCSEL arrays are supremely suited for highly precise ToF applications (Time-of-Flight). Linear depth measurements ranging from several meters up to 0 mm can be carried out with single-mode VCSEL arrays.
Industrial speed and distance sensors
TO housings are robust enough for use in industrial environments. They are used as speed and distance sensors for various materials, including sensitive materials like fabrics.
850 nm chip
The 850 nm chip offers a high output with simultaneously low power consumption. The chip is suitable for high-volume and highly-integrated applications. The laser diodes are supplied as chips on a tape. This delivery format requires a pick&place or a die-bonding process for processing the laser diodes.
Small 940 nm VCSEL array with Gaussian-shaped beam profile
12 emitters mini single-mode VCSEL array for highly precise time-of-flight sensors. VCSEL arrays with Gaussian-shaped beam profile and low rise and fall times.
850 nm ViP (VCSEL with integrated photodiode)
The integrated VCSEL solution ViP is fitted with a photo diode which is directly integrated into the VCSEL to pick up reflective signals for further processing. The patented solution thus supports the self-mixing interference technology, or SMI for short. SMI is a trusted optical measurement method for applications in industrial sensor systems or consumer electronics.
760 nm – 766 nm VCSEL
The VCSELs with one emitter each provide an output of 0.3 mW. VCSELs in the wavelength range between 760 nm and 766 nm are suitable for oxygen measurements and gas sensors. The VCSEL components are available in TO packages for easy handling and integration.
TO Packages
VCSELs in hermetically sealed TO housing allow easy handling of the laser diode and are suitable for operation in demanding ambient conditions. In addition, a burn-in test is made possible; an integrated Zener diode reduces the ESD sensitivity.
TO with TEC
A TO package with an integrated TEC is suitable for applications that demand a large temperature window or require spectral stabilization of the laser diode. The Peltier element makes it possible to precisely regulate the laser temperature using the NTC resistance; there is no condensation on the VCSEL due to the hermeticity of the housing.
Polarization control
Single-mode VCSELs with stable, advanced, linear polarization improve exposure quality and the resolution in demanding 3D lighting applications.
The surface grating enables stable polarization and is etched directly into the GaAs. Thanks to the optimized grid design, the polarized VCSELs achieve almost 100 percent power efficiency compared to non-polarized VCSELs. TRUMPF has developed the patented technology of VCSELs with stable polarization for large-scale applications.
There is also the option of double polarization, so that two directions of polarization are integrated in one VCSEL.
TO packages
Single-mode VCSELs in a hermetically sealed TO housing allow easy handling of the laser diode and are suitable for operation in demanding ambient conditions. The products can also be optionally fitted with a tempering system (TEC, thermistor).
Integrated photodiode
VCSELs with integrated photodiodes (ViP) allow reflected signals to be picked up for further processing. The patented solution thus supports the self-mixing interference technology, or SMI for short. SMI is a trusted optical measurement procedure for applications in industrial sensor systems or consumer electronics.
This product range and information may vary depending on the country. Subject to changes to technology, equipment, price, and range of accessories. Please get in touch with your local contact person to find out whether the product is available in your country.
Contact
Downloads
Flyer Industrial Sensing: Particulate Matter Measurement
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250 KB
Flyer Industrial Sensing: Highly precise and robust VCSEL solutions
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367 KB
White paper ViP
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1 MB
Data sheet: Small 940 nm VCSEL array with Gaussian shaped beam profile
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258 KB
Data sheet: ViP (VCSEL with integrated Photodiode)
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294 KB
Data sheet for 850 nm, single-mode, polarization-stable VCSEL
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528 KB
Data sheet for 760 nm VCSEL for oxygen measurement
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434 KB
Data sheet for 763 nm VCSEL for oxygen measurement
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434 KB
General Terms and Conditions TRUMPF Photonic Components
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280 KB