Optical frequency combs: Coherently uniting the
Optical clocks, based on optical transitions of atoms, operate at much higher frequency than the microwave atomic clocks currently used as our timing
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Optical Domain Microwave Amplifier
Bidirectional microwave-optical transduction based on
Coherent interconversion between microwave and optical frequencies is crucial for developing quantum networks. To this end, the authors integrate
All-optical microwave oscillator using cross-gain modulation of
A microwave envelope can be generated by beating the continuous wave and the second-order Stokes wave. The functions of microwave envelope detection and feedback modulation are
An optoelectronic microwave synthesizer with frequency
Compared to electronic microwave synthesizers, photonic systems that leverage high spectral purity lasers and optical frequency combs can
Microwave controlled ground state coherence in an
We experimentally investigate and theoretically analyze the effect of microwave controlled atomic ground state coherence on the phase-dependent
Broadband microwave signal generation and processing based on optical
Microwave photonic technology has advantages of large bandwidth, high frequency, flexible reconfigurability and immunity to electromagnetic interference, which is widely used for the
Optical-Domain Wideband Microwave Amplification System
AbstractAn optical-domain wideband microwave amplification system which takes advantage of the large bandwidth capacity of optical devices to amplify optically carried microwave signals is proposed.
Scalable microwave-to-optical transducers at the single-photon level
We resolve the transduction of a single classical microwave photon to an optical photon on a single-photon detector and observe an added noise approaching quantum-enabled operation.
Time-domain optical sampling of switched-mode microwave amplifiers
Time-domain measurements of the output waveforms of two 8-GHz high-efficiency power amplifiers, a 1-GHz frequency doubler, and a 5-GHz frequency doubler are presented in this paper. A new
Microwave Generation Based on Optical Domain Microwave
A novel approach to achieving microwave frequency octupling in the optical domain is proposed and demonstrated. The proposed system consists of two cascaded Mach-Zehnder
Ultrawideband dynamic microwave frequency–amplitude
In this work, we propose and demonstrate an ultrawideband dynamic microwave signal measurement scheme using the digital optical frequency comb
Extended-Range Frequency Domain Interferometric Ranging Based
An extended-range all-fiber frequency domain interferometric ranging based on optical-microwave mapping acquisition was proposed in this article. Theoretical analysis denotes that the
Generation of ultrastable microwaves via optical frequency division
Phase-coherent division of the stable optical signal to the microwave domain preserves the fractional frequency instability, while reducing the phase fluctuations by a factor of 5 104 1⁄4 ×
Generation of ultrastable microwaves via optical
Researchers demonstrate a microwave generator based on a high-Q optical resonator and a frequency comb functioning as an optical-to-microwave
Arbitrary Microwave Waveform Generation Based on Optical Domain
Arbitrary microwave waveforms have become increasingly crucial for diverse applications, including high-capacity wireless communication, advanced radar systems,
High Performance Optical Oscillators for Microwave and
Since microwave, mm-wave and even THz signals are a fraction of the frequency of light, the use of optical elements minimizes loss with increased
Optical domain controlled microwave signal processing technology
In this paper, we review our recent works about a microwave photonic repeater, self-interference cancellation, and microwave signal coupling techniques.
Integrated optical frequency division for microwave and
The generation of ultra-low-noise microwave and mmWave in miniaturized, chip-based platforms can transform communication, radar and sensing systems1–3.
Strong-coupling and high-bandwidth cavity electro-optic
We point out that high-bandwidth microwave driving can induce long-range coupling just as strong-coupling regime can also create long-range coupling.
Ultra-broadband optical amplification using nonlinear integrated
An integrated optical parametric amplifier with an ultra-wide bandwidth was implemented using geometrically optimized low-loss nonlinear rib silicon nitride waveguides including the...
All-optical microwave oscillator based on semiconductor
An all-optical microwave oscillator is proposed and experimentally demonstrated. Based on a pure photonic feedback loop, this system can generate a photonic
All-optical microwave oscillator using cross-gain modulation of
In this work, we have proposed an all-optical microwave oscillator using cross-gain modulation of semiconductor optical amplifier and cascaded stimulated Brillouin scattering effects in
Optically Multiplexed Systems: Wavelength Division Multiplexing
cal amplifiers, amplifi-cation could only be done in electrical domain. But this needed conversion from optical to electrical and then back to optical conversion (O-E-O). Additionally, electrical regenerators
Ultrawide-band microwave amplification in the optical domain
An ultrawide-band microwave amplification method in the optical domain is proposed. This method utilized the large bandwidth capacity of optical devices to amplify optically carried microwave signals.