Excess noise and photoinduced effects in highly reflective crystalline mirror coatings

J Yu, S Häfner, T Legero, S Herbers, D Nicolodi, CY Ma… - Physical Review X, 2023 - APS
Thermodynamically induced length fluctuations of high-reflectivity mirror coatings put a
fundamental limit on sensitivity and stability of precision optical interferometers like …

Parity-time–symmetric optoelectronic oscillator

J Zhang, J Yao - Science advances, 2018 - science.org
An optoelectronic oscillator (OEO) is a hybrid microwave and photonic system incorporating
an amplified positive feedback loop to enable microwave oscillation to generate a high …

Experimental implementations of cavity-magnon systems: from ultra strong coupling to applications in precision measurement

G Flower, M Goryachev, J Bourhill… - New Journal of …, 2019 - iopscience.iop.org
Several experimental implementations of cavity-magnon systems are presented. First an
Yttrium Iron Garnet (YIG) block is placed inside a re-entrant cavity where the resulting hybrid …

Ultralow noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock

J Millo, M Abgrall, M Lours, EML English… - Applied Physics …, 2009 - pubs.aip.org
We demonstrate the use of a fiber-based femtosecond laser locked onto an ultrastable
optical cavity to generate a low-noise microwave reference signal. Comparison with both a …

Colloquium: Comparison of astrophysical and terrestrial frequency standards

JG Hartnett, AN Luiten - Reviews of Modern Physics, 2011 - APS
The stability of pulse arrival times from pulsars and white dwarfs have been reanalyzed
using several analysis tools for measuring the noise characteristics of sampled time and …

Actively mode-locked optoelectronic oscillator for microwave pulse generation

J Wo, J Zhang, Y Wang - Optics & Laser Technology, 2022 - Elsevier
The optoelectronic oscillator (OEO) is the most widely investigated microwave photonic
hybrid system for the generation of microwave signal with high frequency and low phase …

Ultra-low-noise microwave extraction from fiber-based optical frequency comb

J Millo, R Boudot, M Lours, PY Bourgeois, AN Luiten… - Optics letters, 2009 - opg.optica.org
In this Letter we report on an all-optical-fiber approach to the generation of ultra-low-noise
microwave signals. We make use of two erbium fiber mode-locked lasers phase locked to a …

Frequency division using a soliton-injected semiconductor gain-switched frequency comb

W Weng, A Kaszubowska-Anandarajah, J Liu… - Science …, 2020 - science.org
With optical spectral marks equally spaced by a frequency in the microwave or the radio
frequency domain, optical frequency combs have been used not only to synthesize optical …

Hybrid frequency-tunable parity-time symmetric optoelectronic oscillator

Z Fan, W Zhang, Q Qiu, J Yao - Journal of Lightwave Technology, 2020 - opg.optica.org
An optoelectronic oscillator (OEO) is a microwave photonic system consisting of an amplified
optoelectronic feedback loop to generate a microwave signal. To reduce the phase noise …

Invited article: Design techniques and noise properties of ultrastable cryogenically cooled sapphire-dielectric resonator oscillators

CR Locke, EN Ivanov, JG Hartnett… - Review of Scientific …, 2008 - pubs.aip.org
We review the techniques used in the design and construction of cryogenic sapphire
oscillators at the University of Western Australia over the 18 year history of the project. We …