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850-nm single-mode VCSELs


Ideal Circular Gaussian Beam
Stable Polarization
Single-Mode
Application FTIR (Fourier-transform Infrared Spectroscopy
Optical Encoder for High-Precision Positioning
TDLAS (Tunable Diode Laser Absorption Spectroscopy)
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Product Info



850-nm single-mode VCSELs

850-nm 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) 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 defining a suitable operating point easier

Spectrum

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

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