| Abstract: A heterodyne photomixer spectrometer comprises a receiver photomixer that
is driven at a different frequency than the source photomixer, thereby
maintaining the coherent nature of the detection, eliminating etalon
effects, and providing not only the amplitude but also the phase of the
received signal. The heterodyne technique can be applied where the source
and receiver elements are components of a waveguide thereby forming an
on-chip heterodyne spectrometer. |
| Filed: 9/28/2010 |
| Application Number: 12/892625 |
| 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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