Results 31 to 40 of about 290,535 (344)

Highly stable MXene (V2CTx)-based harmonic pulse generation

open access: yesNanophotonics, 2020
MXene as a novel two-dimensional (2D) material exhibits a lot of advantages in nonlinear optics. However, the common MXene, Ti3C2Tx and Ti2CTx nanosheets, easily suffer from degradation under ambient conditions, greatly limiting their practical ...
Huang Weichun   +8 more
doaj   +1 more source

Recent progress in passively mode-locked fiber lasers based on low dimensional nanomaterials

open access: yesResults in Optics, 2022
Passively mode-locked fiber lasers have applications in industry, optical communication, biology, chemistry and so on. Saturable absorber (SA) is a key component in mode-locked fiber laser that can periodically modulates the intra-cavity laser pulses and
Yan Zhou   +6 more
doaj   +1 more source

Kerr-Lens Mode-locked Cr:ZnS Laser [PDF]

open access: yesLasers, Sources, and Related Photonic Devices, 2012
We report the soft-aperture Kerr-lens mode-locked Cr:ZnS laser, generating 550 mW of 69 fs nearly transform-limited pulses at 2.39 μm wavelength. The pulse energy reached 3.8 nJ at 145 MHz repetition rate, limited by the onset of double-pulsing. This corresponds to the shortest-pulse and highest-energy direct femtosecond laser source in the mid ...
Tolstik, Nikolai   +2 more
openaire   +3 more sources

860 femtoseconds mode-locked fiber laser by Gallium co-doped erbium fiber (Ga-EDF)

open access: yesResults in Physics, 2019
We proposed and demonstrated a high power mode-locked fiber laser using a new type of gain medium which is called as Erbium Gallium co-doped fiber (Ga-EDF). The mode-locking mechanism is enabled by a graphene-based saturable absorber, which is fabricated
N.A. Zazali   +9 more
doaj   +1 more source

Broadband Passively Mode-Locked Fiber Laser with DNA Aqueous Solution as Saturable Absorber

open access: yesApplied Sciences, 2021
We demonstrate a passively mode-locked fiber laser using aqueous DNA solution as a saturable absorber (SA), with broadband pulse laser emission from 1 to 1.5 µm.
Mijin Kim   +5 more
doaj   +1 more source

Mode-locking of lasers

open access: yesPhotoniques, 2023
Mode-locked lasers are the fundamental source of ultrashort and ultraintense light pulses and a principal pathway for three Nobel Prize technologies: optical frequency combs, chirped pulse amplification, and attosecond light pulses. They are essential in routine and high-level applications such as refractive surgery, spectroscopy, or metrology.
Prati, Franco   +3 more
openaire   +3 more sources

Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser [PDF]

open access: yes, 2012
A compact semiconductor mode-locked laser (MLL) is presented that demonstrates strong passive Q-switched mode-locking over a wide range of drive conditions.
Cheung   +12 more
core   +1 more source

Mode-locked silicon evanescent lasers

open access: yesOptics Express, 2007
We demonstrate electrically pumped lasers on silicon that produce pulses at repetition rates up to 40 GHz. The mode locked lasers generate 4 ps pulses with low jitter and extinction ratios above 18 dB, making them suitable for data and telecommunication transmitters and for clock generation and distribution.
Brian R, Koch   +3 more
openaire   +2 more sources

All-Fiber High Efficiency Wavelength-Tunable Mode-Locked Cylindrical Vector Beam Laser

open access: yesIEEE Photonics Journal, 2022
A wavelength-tunable mode-locked cylindrical vector beam (CVB) fiber laser with a dumbbell-shaped structure was proposed and demonstrated experimentally.
Yuan Lu, Peijun Yao
doaj   +1 more source

High-Sensitivity Demodulation of Fiber-Optic Acoustic Emission Sensor Using Self-Injection Locked Diode Laser

open access: yesIEEE Photonics Journal, 2022
We demonstrate the use of a self-injection locked distributed feedback (DFB) diode laser for high-sensitivity detection of acoustic emission (AE) using a fiber-coil Fabry-Perot interferometer (FPI) sensor.
Farzia Karim   +3 more
doaj   +1 more source

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