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Vcsel

COHR WP OPSL Wavelength Flexibility final 4.17.18.pdf

COHR WP OPSL Wavelength Flexibility final 4.17.18.pdf

…laser (VCSEL). In a conventional VCSEL,
light is emitted perpendicularly to the junction and exits the face of the diode chip, rather than
the edge. The larger output aperture results in a lower divergence beam that can also be
symmetric. Unfortunately, electrically pumped VCSELs

Photonics Spectra - July 2017

Photonics Spectra - July 2017

…and Eindhoven, the Netherlands. The company is a leading supplier
of vertical-cavity surface-emitting lasers
(VCSELs), according to Pankert.
He added that VCSELs are prime
candidates for upcoming automotive
lidar applications. For this use, the ability
of semiconductor…

COHR WP OPSL Superior Reliability 5.30.18.pdf

COHR WP OPSL Superior Reliability 5.30.18.pdf

…pumped vertical cavity semiconductor laser (VCSEL), to give
it its full name. This monolithic III-V semiconductor chip contains layers of ternary quantum wells
(InGaAs) alternated between binary (GaAs) layers. The major advantages of the VCSEL
architecture arise because the output is…

Laser Focus World - January 2015

Laser Focus World - January 2015

…and fall times
are needed, explains
Ghosh. VCSEL arrays
give very fast rise and fall times, typically
<300 ps, and rise and fall times of <100
ps can be obtained with low-inductance
submounts.
VCSEL arrays also have a narrow emission wavelength (<1 nm)…

Sapphire-Advantage-Low-Noise.pdf

Sapphire-Advantage-Low-Noise.pdf

…intracavity frequency doubling. Figure 1 schematically illustrates the main components of an OPSL laser such as the Coherent Sapphire. A large area VCSEL (vertical cavity surface emitting laser) type chip is pumped by one or more laser diodes. This monolithic III-V semiconductor chip contains layers…