Results 41 to 50 of about 53,726 (323)

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

Integrated dual optical frequency comb source

open access: yesOptics Express, 2020
A monolithically integrated dual-channel optical frequency comb source is demonstrated in this paper. Three lasers are integrated on a single chip using a regrowth-free fabrication process in a master-slave-slave configuration. The master laser’s power is split equally using a 1x2 multimode interference coupler and injection locks the two slave lasers.
Justin K. Alexander   +9 more
openaire   +3 more sources

High-Sensitivity and High-Precision RI Sensing Using THz-Comb-Based Frequency Multiplication and Dual-Comb Active-Dummy Temperature Compensation [PDF]

open access: yesEPJ Web of Conferences
This paper presents a novel optical-comb-based refractive index sensor that simultaneously achieves high-sensitivity and high-precision by combining THz-comb-based frequency multiplication with active-dummy temperature compensation in a dual-comb ...
Higaki Masayuki   +5 more
doaj   +1 more source

Ultralow Noise and Timing Jitter Semiconductor Quantum-Dot Passively Mode-Locked Laser for Terabit/s Optical Networks

open access: yesPhotonics, 2022
Diode optical frequency comb lasers are promising compact solutions to generate high-speed optical pulses for applications in high spectral efficiency wavelength division multiplexing transmission with advanced modulation formats.
Youxin Mao   +7 more
doaj   +1 more source

Microresonator frequency comb optical clock

open access: yesOptica, 2014
Optical-frequency combs enable measurement precision at the 20th digit, and accuracy entirely commensurate with their reference oscillator. A new direction in experiments is the creation of ultracompact frequency combs by way of nonlinear parametric optics in microresonators.
Papp, Scott B.   +6 more
openaire   +4 more sources

Visible-to-mid-IR tunable frequency comb in nanophotonics

open access: yesNature Communications, 2023
Optical frequency comb is an enabling technology for a multitude of applications from metrology to ranging and communications. The tremendous progress in sources of optical frequency combs has mostly been centered around the near-infrared spectral region,
Arkadev Roy   +8 more
doaj   +1 more source

Passively mode locked Raman laser

open access: yes, 2010
We report on the observation of a novel mode locked optical comb generated at the Raman offset (Raman comb) in an optically pumped crystalline whispering gallery mode resonator.
A. A. Savchenkov   +8 more
core   +1 more source

Precision Phase Control of an Ultrawide-Bandwidth Femtosecond Laser: a Network of Ultrastable Frequency Marks across the Visible Spectrum [PDF]

open access: yes, 2000
We demonstrate that the stability of the current optical frequency comb generated by a Kerr-lens mode-locked femtosecond laser is limited by the microwave reference used for phase locking the comb spacing.
Diddams, Scott A.   +2 more
core   +3 more sources

10-GHz Self-Referenced Optical Frequency Comb [PDF]

open access: yesScience, 2009
A laser that emits lines every 10 gigahertz can be used for frequency calibration in spectroscopy.
Bartels, Albrecht   +2 more
openaire   +3 more sources

Spectral Peaked Optical Frequency Comb for Highly Sensitive Spectroscopy

open access: yesAdvanced Photonics Research
Optical frequency combs represent a breakthrough in the field of metrology. Because an optical frequency comb has a large number of comb modes, the optical energy is dispersed over the comb modes, and the optical energy per comb mode is very small.
Norihiko Nishizawa   +3 more
doaj   +1 more source

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