Methods and apparatus for radio frequency (RF) photonic spectrometer using optical frequency combs
US10084546B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2018 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC —)General
Abstract
A radio frequency (RF) photonic spectrometer may include a laser and a receiver branch including an optical modulator optically coupled to the laser and configured to modulate laser light based upon a radio frequency (RF) input signal, and an optical bandpass filter optically coupled to the optical modulator. The spectrometer may further include optical comb branches optically coupled to the laser and each including a frequency comb generator coupled to a respective RF reference signal, with the RF reference signals having different frequencies associated therewith. Furthermore, an output stage may be configured to determine a frequency of the RF input signal based upon outputs of the receiver branch and the optical comb branches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.