Results 31 to 40 of about 49,753 (282)

Optical Frequency Comb Faraday Rotation Spectroscopy [PDF]

open access: yesLight, Energy and the Environment 2018 (E2, FTS, HISE, SOLAR, SSL), 2018
We demonstrate optical frequency comb Faraday rotation spectroscopy (OFC-FRS) for broadband interference-free detection of paramagnetic species. The system is based on a femtosecond doubly resonant optical parametric oscillator and a fast-scanning Fourier transform spectrometer (FTS).
Alexandra C. Johansson   +3 more
openaire   +4 more sources

Towards generation of optical frequency comb in the short-wavelength visible region using periodically poled lithium niobate waveguides

open access: yesResults in Optics, 2021
We demonstrate the spectral broadening of an octave-spanning erbium-based frequency comb in two types of periodically poled lithium niobate (PPLN) waveguides.
Yuma Goji   +4 more
doaj   +1 more source

Theory of quadratic optical frequency combs [PDF]

open access: yes2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
We present theoretical studies of optical frequency comb generation in dispersive quadratically nonlinear resonators. We introduce a mean field equation approach to model cavity enhanced second harmonic generation and find excellent agreement with recent experimental frequency comb observations. We also develop a more general approach based on a single
Hansson Tobias   +6 more
openaire   +4 more sources

Controllable Kerr and Raman-Kerr frequency combs in functionalized microsphere resonators

open access: yesNanophotonics, 2019
Optical frequency comb (OFC) based on the whispering-gallery-mode microresonator has various potential applications in fundamental and applied areas. Once the solid microresonator is fabricated, its structure parameters are generally unchanged. Therefore,
Zhu Song   +6 more
doaj   +1 more source

Control of Frequency Combs with Passive Resonators

open access: yesSensors, 2023
Tailored optical frequency combs are generated by nesting passive etalons within mode-locked oscillators. In this work, the oscillator generates a comb of 6.8 GHz with 106 MHz side-bands.
James Hendrie   +2 more
doaj   +1 more source

Octave Spanning Frequency Comb on a Chip

open access: yes, 2009
Optical frequency combs have revolutionized the field of frequency metrology within the last decade and have become enabling tools for atomic clocks, gas sensing and astrophysical spectrometer calibration.
Del'Haye, Pascal   +5 more
core   +1 more source

Optical Frequency Combs Generated by Acousto-Optic Frequency-Shifting Loops [PDF]

open access: yesIEEE Photonics Technology Letters, 2019
A recirculating loop that includes an acousto-optic frequency shifter (AOFS) constitutes a versatile procedure to generate an optical frequency comb (OFC) from a continuous wave (cw) laser. This scheme, implementable with conventional fiber equipment, is capable of producing spectra composed of at least hundreds of coherent lines using a single-stage ...
Vicente Duran   +6 more
openaire   +3 more sources

Phase Stabilization of a Frequency Comb using Multipulse Quantum Interferometry [PDF]

open access: yes, 2014
From the interaction between a frequency comb and an atomic qubit, we derive quantum protocols for the determination of the carrier-envelope offset phase, using the qubit coherence as a reference, and without the need of frequency doubling or an octave ...
Cadarso, Andrea   +2 more
core   +4 more sources

Optimization of acousto-optic optical frequency combs

open access: yesOptics Express, 2019
Acousto-optic optical frequency combs can easily produce several hundreds of mutually coherent lines from a single laser, by successive frequency shifts in a loop containing an acousto-optic frequency shifter. They combine many advantages for multi-heterodyne interferometry and dual-comb spectroscopy.
Nithyanandan Kanagaraj   +4 more
openaire   +4 more sources

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