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Single & multimode VCSEL

Single-mode VCSEL

The VCSEL laser diode as a chip for high-volume applications and highly integrated sensors.

Single & multimode VCSEL

Single-mode VCSEL

Small 940 nm VCSEL arrays with Gaussian-shaped beam profile

Single-mode VCSELs, 850 mm, TO46 with TEC, TRUMPF Photonic Components
Single-mode VCSELs, 850 mm, TO46 with TEC, TRUMPF Photonic Components
Single & multimode VCSEL

Single-mode VCSEL

VCSEL with hermetically sealed TO housing and optional integrated TEC for demanding ambient conditions

Single & multimode VCSEL

Single-mode VCSEL

VCSEL with an integrated photodiode to pick up reflective signals.

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 divergence angle 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.

Beam profile

In the far field, the intensity distribution of the single-mode VCSEL is perfectly Gaussian-shaped

LIVT characteristic curve

Low threshold currents and a linear performance across a large temperature range make it easier to define a suitable operating point

Spectrum

Higher-order modes are strongly suppressed; the spectrum has an extremely narrow band

Graphic self-mixing interference technology
Self-mixing interference technology (SMI)

The single-mode VCSEL with integrated photodiode make SMI technology possible. With the trusted measuring procedures, an optical resonator captures the reflection of the laser beam and mixes it with the light in the resonator. The integrated photodiode measures the variation of the power caused by the interference. The system calculates the movement speed from the frequency difference. The direction of movement of the target object can be inferred from the modulation of the wavelength.

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) graphic, TRUMPF Photonic Components

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.

FURTHER INFORMATION
Laser parameters        
Laser type Single mode Single mode Single mode Single mode
Typical wavelength 850 nm 940 nm 850 nm 760, 763, 850 nm
Output power (min.) 2 mW 13.5 mW 0.3 mW -
Output power (max.) 2.5 mW 25 mW 0.75 mW -
Number of emitters 1 pieces 12 pieces 2 pieces 1 pieces
Gradient efficiency (at room temperature) 0.5 - 1 W/A 0.9 W/A - -
Laser safety class 3B 3B 3B 3B
Optics        
Optical element - - With polarization control TO package with integrated optics
Current        
Current voltage (at 25 mA and room temperature) 2.6 V 2.6 V 1.7 - 2.4 V -
Threshold current (at room temperature) 2 mA 3.6 mA 0.2 - 1.0 mA -
Size        
Width dimension 200 μm 187 μm 165 μm -
Height dimension 200 μm 187 μm 165 μm -
Depth dimension 99 μm 99 μm 130 μm -
Single-Mode-VCSEL, 850 nm

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.

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.

TO packages

VCSELs in a 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.

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.

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Industrial VCSEL solutions (TO packages)

VCSELs in a hermetically sealed TO housing allow easy handling of the laser diode and are suitable for operation in demanding ambient conditions. 

The success story of SICK AG

Find out how SICK AG – the specialist for industrial sensor solutions – is making contactless measuring a reality for mass production in production systems with VCSEL diodes from TRUMPF.

Optical sensors for industrial use

In production environments, optical sensor solutions based on VCSEL technology play an important role. Reliable and high-performance light sources for industrial sensor applications, VCSELs can be used for applications such as   oxygen sensors, humidity sensors, position sensors and proximity sensors.

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