Franklyn Quinlan
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View article: From ultra-noisy to ultra-stable: Optimization of the optoelectronic laser lock
From ultra-noisy to ultra-stable: Optimization of the optoelectronic laser lock Open
We demonstrate the direct locking of a 820 kHz linewidth semiconductor distributed feedback laser to a high finesse, compact, and ultrastable reference cavity using the optoelectronic (OEO) laser locking method, resulting in cavity thermal…
View article: From ultra-noisy to ultra-stable: Optimization of the optoelectronic laser lock
From ultra-noisy to ultra-stable: Optimization of the optoelectronic laser lock Open
We demonstrate the direct locking of a 820 kHz linewidth semiconductor distributed feedback laser to a high finesse, compact, and ultrastable reference cavity using the optoelectronic (OEO) laser locking method, resulting in cavity thermal…
View article: Sub-femtosecond stabilization of multicore fiber for high-fidelity quantum networking at 100% duty cycle
Sub-femtosecond stabilization of multicore fiber for high-fidelity quantum networking at 100% duty cycle Open
Originally envisioned as a solution for the capacity crunch in telecommunications networks, multicore fibers (MCF) are contributing to scientific fields beyond telecom, such as sensing and metrology. Confined within the same cladding, the …
View article: Ultrastable optical frequency transfer and attosecond timing in deployed multicore fiber
Ultrastable optical frequency transfer and attosecond timing in deployed multicore fiber Open
The telecommunications industry’s deployment of billions of kilometers of optical fiber has created a vast global network that can be exploited for additional applications such as environmental sensing, quantum networking, and internationa…
View article: Cryogenic photonic link using an extended-InGaAs photodiode and short pulse illumination toward high-fidelity drive of superconducting qubits
Cryogenic photonic link using an extended-InGaAs photodiode and short pulse illumination toward high-fidelity drive of superconducting qubits Open
We investigate short pulse illumination of a high-speed extended-InGaAs photodiode at cryogenic temperatures toward its use in control and readout of superconducting qubits. First, we demonstrate high detector responsivity at 1550 nm illum…
View article: Dual Laser Self-Injection Locking to a Micro Fabry-Perot for Low Phase Noise Millimeter-wave Generation
Dual Laser Self-Injection Locking to a Micro Fabry-Perot for Low Phase Noise Millimeter-wave Generation Open
Low-noise and accessible millimeter-wave sources are critical for emergent telecommunications, radar and sensing applications. Current limitations to realizing low-noise, deployable millimeter-wave systems include size, weight, and power (…
View article: Cryogenic photonic link using an extended-InGaAs photodiode and short pulse illumination towards high-fidelity drive of superconducting qubits
Cryogenic photonic link using an extended-InGaAs photodiode and short pulse illumination towards high-fidelity drive of superconducting qubits Open
We investigate short pulse illumination of a high-speed extended-InGaAs photodiode at cryogenic temperatures towards its use in control and readout of superconducting qubits. First, we demonstrate high detector responsivity at 1550 nm illu…
View article: Enabling a multifunctional telecommunications fiber optic network: Ultrastable optical frequency transfer and attosecond timing in deployed multicore fiber
Enabling a multifunctional telecommunications fiber optic network: Ultrastable optical frequency transfer and attosecond timing in deployed multicore fiber Open
The telecommunications industry's deployment of billions of kilometers of optical fiber has created a vast global network that can be exploited for additional applications such as environmental sensing, quantum networking and international…
View article: Photonic millimeter-wave generation beyond the cavity thermal limit
Photonic millimeter-wave generation beyond the cavity thermal limit Open
Next-generation communications, radar, and navigation systems will extend and exploit the higher bandwidth of the millimeter-wave domain for increased communication data rates as well as radar with higher sensitivity and increased spatial …
View article: Harnessing micro-Fabry-Perot reference cavities in photonic integrated circuits
Harnessing micro-Fabry-Perot reference cavities in photonic integrated circuits Open
Compact photonic systems that offer high frequency stability and low noise are of increasing importance to applications in precision metrology, quantum computing, communication, and advanced sensing technologies. However, on-chip resonator…
View article: Deployment of a Transportable Yb Optical Lattice Clock
Deployment of a Transportable Yb Optical Lattice Clock Open
We report on the first deployment of a ytterbium (Yb) transportable optical lattice clock (TOLC), commercially shipping the clock 3,000 km from Boulder, Colorado to Washington DC. The system, composed of a rigidly mounted optical reference…
View article: Ultrastable vacuum-gap Fabry–Perot cavities operated in air
Ultrastable vacuum-gap Fabry–Perot cavities operated in air Open
We demonstrate a vacuum-gap ultrastable optical reference cavity that does not require a vacuum enclosure. Our simple method of optical contact bonding in a vacuum environment allows for cavity operation in air while maintaining vacuum bet…
View article: Ultrastable vacuum-gap Fabry-Pérot cavities operated in air
Ultrastable vacuum-gap Fabry-Pérot cavities operated in air Open
We demonstrate a vacuum-gap ultrastable optical reference cavity that does not require a vacuum enclosure. Our simple method of optical contact bonding in a vacuum environment allows for cavity operation in air while maintaining vacuum bet…
View article: Fiber-coupled 2 mL vacuum-gap Fabry-Pérot reference cavity for portable laser stabilization
Fiber-coupled 2 mL vacuum-gap Fabry-Pérot reference cavity for portable laser stabilization Open
Vacuum-gap Fabry-Perot cavities are indispensable for the realization of frequency-stable lasers, with applications across a diverse range of scientific and industrial pursuits. However, making these cavity-based laser stabilization system…
View article: Dual-comb correlation spectroscopy of thermal light
Dual-comb correlation spectroscopy of thermal light Open
The detection of light of thermal origin is the principal means by which humanity has learned about our world and the cosmos. In optical astronomy, in particular, direct detection of thermal photons and the resolution of their spectra have…
View article: Photonic Millimeter-wave Generation Beyond the Cavity Thermal Limit
Photonic Millimeter-wave Generation Beyond the Cavity Thermal Limit Open
Next-generation communications, radar and navigation systems will extend and exploit the higher bandwidth of the millimeter-wave domain for increased communication data rates as well as radar with higher sensitivity and increased spatial r…
View article: Tunable X-band opto-electronic synthesizer with ultralow phase noise
Tunable X-band opto-electronic synthesizer with ultralow phase noise Open
Modern communication, navigation, and radar systems rely on low noise and frequency-agile microwave sources. In this application space, photonic systems provide an attractive alternative to conventional microwave synthesis by leveraging hi…
View article: Photonic chip-based low-noise microwave oscillator
Photonic chip-based low-noise microwave oscillator Open
Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave photonics, whereby low-noise microwave signals are generated …
View article: Low-noise microwave generation with an air-gap optical reference cavity
Low-noise microwave generation with an air-gap optical reference cavity Open
We demonstrate a high finesse, microfabricated mirror-based, air-gap cavity with volume less than 1 ml, constructed in an array, that can support low-noise microwave generation through optical frequency division. We use the air-gap cavity …
View article: A novel approach to interface high-Q Fabry–Pérot resonators with photonic circuits
A novel approach to interface high-Q Fabry–Pérot resonators with photonic circuits Open
The unique benefits of Fabry–Pérot resonators as frequency-stable reference cavities and as an efficient interface between atoms and photons make them an indispensable resource for emerging photonic technologies. To bring these performance…
View article: A Novel Approach to Interface High-Q Fabry-Pérot Resonators with Photonic Circuits
A Novel Approach to Interface High-Q Fabry-Pérot Resonators with Photonic Circuits Open
The unique benefits of Fabry-Pérot resonators as frequency-stable reference cavities and as an efficient interface between atoms and photons make them an indispensable resource for emerging photonic technologies. To bring these performance…
View article: The Photodetection of Ultrashort Optical Pulse Trains for Low Noise Microwave Signal Generation
The Photodetection of Ultrashort Optical Pulse Trains for Low Noise Microwave Signal Generation Open
Electrical signals derived from optical sources have achieved record‐low levels of phase noise, and have demonstrated the highest frequency stability yet achieved in the microwave domain. Attaining such ultrastable phase and frequency perf…
View article: Sub-GHz resolution line-by-line pulse shaper for driving superconducting circuits
Sub-GHz resolution line-by-line pulse shaper for driving superconducting circuits Open
We demonstrate a sub-GHz resolution, fully programmable Fourier-domain pulse shaper capable of generating arbitrary optical pulse patterns for superconducting circuit platforms. This high resolution allows line-by-line pulse shaping of a 1…
View article: Photonic chip-based low noise microwave oscillator
Photonic chip-based low noise microwave oscillator Open
Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave photonics, whereby low noise microwave signals are generated …
View article: Thermal-noise-limited, compact optical reference cavity operated without a vacuum enclosure
Thermal-noise-limited, compact optical reference cavity operated without a vacuum enclosure Open
We present an in-vacuum bonded, 9.7 mL-volume Fabry-Pérot ultrastable optical reference cavity that operates without a vacuum enclosure. A laser stabilized to the cavity demonstrates low, thermal noise-limited phase noise and 5 × 10^{-14} …
View article: Thermal-noise-limited, compact optical reference cavity operated without a vacuum enclosure
Thermal-noise-limited, compact optical reference cavity operated without a vacuum enclosure Open
We present an in-vacuum bonded, 9.7 mL-volume Fabry-Pérot ultrastable optical reference cavity that operates without a vacuum enclosure. A laser stabilized to the cavity demonstrates low, thermal noise-limited phase noise and 5 × 10^{-14} …
View article: Thermal-noise-limited, compact optical reference cavity operated without a vacuum enclosure
Thermal-noise-limited, compact optical reference cavity operated without a vacuum enclosure Open
We present an in-vacuum bonded, 9.7 mL-volume Fabry-Pérot ultrastable optical reference cavity that operates without a vacuum enclosure. A laser stabilized to the cavity demonstrates low, thermal noise-limited phase noise and 5x10^{-14} Al…
View article: Advanced Distributed Submarine Cable Monitoring and Environmental Sensing using Constant Power Probe Signals and Coherent Detection
Advanced Distributed Submarine Cable Monitoring and Environmental Sensing using Constant Power Probe Signals and Coherent Detection Open
In this work we demonstrate an FPGA-based coherent optical frequency domain reflectometry setup for cable monitoring. Using coherent detection for averaging and narrowband filtering, we significantly improve the signal-to-noise ratio (SNR)…
View article: Compact, portable, thermal-noise-limited optical cavity with low acceleration sensitivity
Compact, portable, thermal-noise-limited optical cavity with low acceleration sensitivity Open
We develop and demonstrate a compact (less than 6 mL) portable Fabry-Pérot optical reference cavity. A laser locked to the cavity is thermal noise limited at 2 × 10 −14 fractional frequency stability. Broadband feedback control with an ele…