Results 61 to 70 of about 20,944 (281)

Classical and quantum frequency combs for satellite-based clock synchronization

open access: yesAPL Photonics
The next generation of space-based networks for communications, sensing, and navigation will contain optical clocks embedded within satellites. To fully realize the capabilities of such clocks, high-precision clock synchronization across the networks ...
Ronakraj K. Gosalia   +5 more
doaj   +1 more source

Carrier-Envelope Offset Stabilized Ultrafast Diode-Pumped Solid-State Lasers

open access: yesApplied Sciences, 2015
Optical frequency combs have been revolutionizing many research areas and are finding a growing number of real-world applications. While initially dominated by Ti:Sapphire and fiber lasers, optical frequency combs from modelocked diode-pumped solid-state
Stéphane Schilt, Thomas Südmeyer
doaj   +1 more source

Frequency microcomb stabilization via dual-microwave control

open access: yesCommunications Physics, 2021
Optical frequency combs can provide phase-coherent links between optical frequencies and microwaves, allowing for precise optical frequency generation; however current technologies require external optical references or multiple power-intensive ...
Abhinav Kumar Vinod   +5 more
doaj   +1 more source

Searching for Exoplanets Using a Microresonator Astrocomb [PDF]

open access: yes, 2018
Detection of weak radial velocity shifts of host stars induced by orbiting planets is an important technique for discovering and characterizing planets beyond our solar system.
A Dutt   +58 more
core   +3 more sources

Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume

open access: yesAdvanced Science, EarlyView.
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zi‐Dong Zhang   +7 more
wiley   +1 more source

Optical frequency combs for optical fiber communications

open access: yesAPL Photonics
Optical frequency combs are analyzed in the context of using them for carrying data in optical fiber communication systems. Combs are analyzed for their data-carrying capacity, i.e., for how much data they can carry, in massively multiplexed systems, and
Leif Katsuo Oxenløwe
doaj   +1 more source

Recent Advances, Applications, and Perspectives in Erbium-Doped Fiber Combs

open access: yesPhotonics
Optical frequency combs have emerged as a new generation of metrological tools, driving advancements in various fields such as free-space two-way time–frequency transfer, low-noise microwave source generation, and gas molecule detection.
Pengpeng Yan   +5 more
doaj   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Photonic chip based optical frequency comb using soliton induced Cherenkov radiation

open access: yes, 2015
By continuous wave pumping of a dispersion engineered, planar silicon nitride microresonator, continuously circulating, sub-30fs short temporal dissipative solitons are generated, that correspond to pulses of 6 optical cycles and constitute a coherent ...
Brasch, Victor   +6 more
core   +1 more source

Endless frequency shifting of optical frequency comb lines

open access: yesOptics Express, 2013
The functional principle of a novel technique for frequency shifting lines of an optical frequency comb is demonstrated. The underlying principle is to shift the carrier frequency by changing the carrier phase within the time span between subsequent pulses of a mode-locked laser used as comb generator.
Erik, Benkler   +2 more
openaire   +2 more sources

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