Results 81 to 90 of about 50,151 (190)

Injection-Locked Millimeter Wave Frequency Divider Utilizing Optoelectronic Oscillator Based Optical Frequency Comb

open access: yesIEEE Photonics Journal, 2019
We propose and experimentally demonstrate a photonic millimeter-wave frequency divider based on a super-harmonic injection-locked optoelectronic oscillator (OEO) and an optical frequency comb.
Yongchi Xu   +7 more
doaj   +1 more source

Doppler cooling with coherent trains of laser pulses and tunable "velocity comb"

open access: yes, 2011
We explore the possibility of decelerating and Doppler cooling of an ensemble of two-level atoms by a coherent train of short, non-overlapping laser pulses.
Andrei Derevianko   +5 more
core   +1 more source

Photonic chip-based soliton frequency combs covering the biological imaging window

open access: yesNature Communications, 2018
Dissipative Kerr solitons in optical microresonators provide excellent optical frequency comb sources for precision metrology and imaging techniques. Here, Karpov et al.
Maxim Karpov   +4 more
doaj   +1 more source

Gaussian-shaped Optical Frequency Comb Generation for Microwave Photonic Filtering [PDF]

open access: yes, 2011
Using only electro-optic modulators, we generate a 41-line 10-GHz Gaussian-shaped optical frequency comb. We use this comb to demonstrate apodized microwave photonic filters with greater than 43-dB sidelobe suppression without the need for a pulse shaper.
Hamidi, Ehsan   +6 more
core   +1 more source

Microresonator-based high-resolution gas spectroscopy

open access: yes, 2017
In recent years, microresonator-based optical frequency combs have created up opportunities for developing a spectroscopy laboratory on a chip due to its broadband emission and high comb power.
Gaeta, Alexander L.   +4 more
core   +1 more source

Determination of the zero-position for an optical angle sensor

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2016
This paper proposes a new optical angle sensor, in which a mode-locked femtosecond laser referred to as the optical frequency comb is employed as the light source for the sensor.
Jun TAMADA   +4 more
doaj   +1 more source

Dual-Comb Ranging

open access: yesEngineering, 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

Optical Frequency Comb Generation in Highly Nonlinear Fiber With Dual-Mode Square Microlasers

open access: yesIEEE Photonics Journal, 2018
Optical frequency comb (OFC) generation based on four-wave mixing in highly nonlinear fiber (HNLF) is investigated using dual-transverse-mode square microlaser as a seed source.
Hai-Zhong Weng   +6 more
doaj   +1 more source

Portable frequency combs for optical frequency metrology

open access: yesOptics Express, 2012
We demonstrate a temperature stabilized CMOS-compatible frequency comb based on an integrated optical micro-ring resonator. The instrument operates in the wavelength interval 1520-1600 nm with a wide free spectral range (FSR) of 200 GHz. By embedding a highly sensitive “resistive thermal device” (RTD) on the surface of the chip to provide temperature ...
Chris Lee   +4 more
openaire   +1 more source

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