Integrated silicon-based nonlinear photodetector
First Claim
Patent Images
1. A system comprising:
- an integrated silicon-based structure comprising an optical waveguide for receiving an input beam carrying an optical signal and a microcavity optically coupled to the waveguide and configured to receive optical energy from the input beam and absorb the optical energy by a nonlinear multi-photon absorption process,the integrated silicon-based structure further comprising electrodes responsive to the nonlinear multi-photon absorption process in the microcavity for producing an electronic signal indicative of the optical signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a system including an integrated silicon-based structure including a microcavity configured to receive optical energy from an input beam carrying an optical signal and absorb the optical energy by a nonlinear multi-photon absorption process. For example, the multi-photon absorption process can be two-photon absorption (TPA). The integrated silicon-based structure further includes electrodes responsive to the nonlinear multi-photon absorption process in the microcavity for producing an electronic signal indicative of the optical signal. A related method is also disclosed.
8 Citations
33 Claims
-
1. A system comprising:
-
an integrated silicon-based structure comprising an optical waveguide for receiving an input beam carrying an optical signal and a microcavity optically coupled to the waveguide and configured to receive optical energy from the input beam and absorb the optical energy by a nonlinear multi-photon absorption process, the integrated silicon-based structure further comprising electrodes responsive to the nonlinear multi-photon absorption process in the microcavity for producing an electronic signal indicative of the optical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. Apparatus comprising:
-
an integrated silicon-based structure comprising an optical waveguide for receiving an input beam carrying an optical signal and a microcavity optically coupled to the waveguide and configured to receive optical energy from the input beam and absorb the optical energy by a nonlinear multi-photon absorption process, the integrated silicon-based structure further comprising electrodes responsive to the nonlinear multi-photon absorption process in the microcavity for producing an electronic signal indicative of the optical signal, wherein the microcavity comprises silicon and wherein the nonlinear multi-photon absorption process is in the silicon, and wherein the micro cavity has a resonant frequency ω
0, a quality factor Q, and a modal volume VMODE, and wherein the input beam carrying the optical signal has a wavelength in air equal to λ
AIR, with 1.2 μ
m<
λ
AIR<
2.4 μ
m, and wherein Q>
100 and VMODE<
1000 λ
AIR3. - View Dependent Claims (24, 25, 26, 27)
-
-
28. A system comprising:
-
an integrated silicon-based structure comprising a micro cavity configured to receive optical energy from an input beam carrying an optical signal and absorb the optical energy by a nonlinear multi-photon absorption process, the integrated silicon-based structure further comprising electrodes responsive to the nonlinear multi-photon absorption process in the microcavity for producing an electronic signal indicative of the optical signal, wherein the microcavity comprises silicon and wherein the nonlinear multi-photon absorption process is in the silicon. - View Dependent Claims (29, 30, 31, 32, 33)
-
Specification