Back to results
US 2014/0348516 A1Published application
Monolithic widely-tunable coherent receiver
AssigneeFreedom Photonics LLC
InventorsJonathon Barton, Milan Mashanovitch
Life of this patent
Estimating the term…
Abstract
Various embodiments of a coherent receiver including a widely tunable local oscillator laser are described herein. In some embodiments, the coherent receiver can be integrated with waveguides, optical splitters and detectors to form a monolithic optical hetero/homodyne receiver. In some embodiments, the coherent receiver can demodulate the full phase information in two polarizations of a received optical signal over a range of optical wavelengths.
Claims18
-10. (canceled)
A monolithically integrated optical receiver comprising:
- at least one substrate;
- a tunable laser resonator monolithically integrated with the substrate, the laser resonator configured to output radiation along an optical axis;
- a plurality of photodetectors monolithically integrated with the substrate;
- an optical mixer monolithically integrated with the substrate, the optical mixer including:
- a first input waveguide optically connected to the laser resonator;
- a second input waveguide configured to propagate a modulated optical signal;
- a plurality of output waveguides, each of the plurality of photodetectors being optically connected to one of the plurality of output waveguides;
- and
- an optical redirector integrated with at least one of the first input waveguide, the second input waveguide or at least one of the plurality of output waveguides, the optical redirector configured to change the direction of propagation of optical radiation in the waveguide it is integrated with.
6 more elements
Dependencies are inferred from the claim text.