Results 31 to 40 of about 118,225 (289)
Broadband Optical Frequency Comb Generation With Flexible Frequency Spacing and Center Wavelength
IEEE Photonics Journal, 2018 A broadband optical frequency comb with a flexible frequency spacing and a center wavelength is proposed and experimentally demonstrated. The proposed scheme consists of a single continuous-wave laser, cascaded Mach–Zehnder modulator (MZM) and ...
Siyuan Yu, Fangdi Bao, Hao Hu
doaj +1 more source
Cavity-Enhanced Frequency Comb Vernier Spectroscopy
Photonics, 2022 Vernier spectroscopy is a frequency comb-based technique employing optical cavities for filtering of the comb and for enhancement of the interaction length with the sample.
Chuang Lu +4 more
doaj +1 more source
Femtosecond Optical Frequency Combs [PDF]
The European Physical Journal Special Topics, 2009 A laser frequency comb allows the conversion of the very rapid oscillations of visible light of some 100’s of THz down to frequencies that can be handled with conventional electronics. This capability has enabled the most precise laser spectroscopy experiments yet that allowed to test quantum electrodynamics, to determine fundamental constants and to ...
Udem, T., Holzwarth, R., Hänsch, T.
openaire +2 more sources
Engineering, 2018 Absolute distance measurement is a fundamental technique in mobile and large-scale dimensional metrology. Dual-comb ranging is emerging as a powerful tool that exploits phase resolution and frequency accuracy for high-precision and fast-rate distance ...
Zebin Zhu, Guanhao Wu
doaj +1 more source
Optics Express, 2009 We demonstrate a frequency comb (FC) swept laser and a frequency comb Fourier domain mode locked (FC-FDML) laser for applications in optical coherence tomography (OCT). The fiber-based FC swept lasers operate at a sweep rate of 1kHz and 120kHz, respectively over a 135nm tuning range centered at 1310nm with average output powers of 50mW.
Tsai, Tsung-Han +3 more
openaire +4 more sources
Nanophotonics, 2016 A number of dielectric materials have been employed for on-chip frequency comb generation. Silicon based dielectrics such as silicon dioxide (SiO2) and silicon nitride (SiN) are particularly attractive comb materials due to their low optical loss and ...
Jung Hojoong, Tang Hong X.
doaj +1 more source
Results 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
Octave Spanning Frequency Comb on a Chip
, 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
Phase Stabilization of a Frequency Comb using Multipulse Quantum Interferometry [PDF]
, 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
Europhysics LettersAbstract We identify a new class of time-periodic attractor solutions in scalar-field cosmology, which we term Cosmological Frequency Combs (CFC). These solutions arise in exponential quintessence models with a phantom matter background and exhibit coherent phase-locked oscillations in the scalar field's normalized variables.
Trivedi, Oem +2 more
openaire +2 more sources