| Abstract: A coupled-cavity vertical-cavity surface-emitting laser (VCSEL) is
disclosed. The coupled-cavity VCSEL includes a passive cavity and an
additional distributed Bragg Reflector (DBR) not found in conventional
VCSELs, all in a monolithic device. By including these two elements, the
photon lifetime may be increased by a factor of approximately ten,
leading to a reduction in the laser linewidth by a factor of
approximately 100 compared to conventional VCSELs. The two additional
elements also serve to ensure single-mode operation of the coupled-cavity
VCSEL. |
| Filed: 8/15/2019 |
| Application Number: 16/541237 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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