300 GHz wave generation based on a Kerr microresonator frequency comb stabilized to a low noise microwave reference
Abstract
In this Letter, we experimentally demonstrate low noise 300 GHz wave generation based on a Kerr microresonator frequency comb operating in the soliton regime. The spectral purity of a 10 GHz GPS-disciplined dielectric resonant oscillator is transferred to the 300 GHz repetition rate frequency of the soliton comb through an optoelectronic phase-locked loop. Two adjacent comb lines beat on a uni-traveling carrier photodiode emitting the 300 GHz millimeter-wave signal into a waveguide. In an out-of-loop measurement, we measure the 300 GHz power spectral density of phase noise to be − 88 d B c / H z , − 105 d B c / H z at 10 kHz, and 1 MHz Fourier frequency, respectively. Phase-locking error instability reaches 2 × 10 − 15 at 1 s averaging time. Such a system provides a promising path to the realization of compact, low power consumption millimeter-wave oscillators with low noise performance for out-of-the-laboratory applications.
- Publication:
-
Optics Letters
- Pub Date:
- August 2020
- DOI:
- 10.1364/OL.398345
- arXiv:
- arXiv:2006.09281
- Bibcode:
- 2020OptL...45.4377T
- Keywords:
-
- Physics - Optics;
- Physics - Instrumentation and Detectors
- E-Print:
- 4 pages, 4 figures