The semiconductor gain chip is another critical component and one that is unique to the OPSL.
The gain disk is actually an optically pumped vertical cavity semiconductor laser (VCSEL), to give
it its full name. This monolithic III-V semiconductor chip contains layers of ternary…
…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 of tertiary quantum wells (InGaAs) alternated between binary (GaAs)…
…the camera chip is attached with
a narrowband filter.
Princeton Optronics' technology has
been developed with funding from the
U.S. Defense Advanced Research Projects
Agency (DARPA) and other agencies,
says Ghosh. "We have developed VCSEL
chips with power levels…
…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…
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