Results 71 to 80 of about 11,182 (198)

Development of a portable and cost‐effective femtosecond fibre laser synchronizable with synchrotron X‐ray pulses

open access: yesJournal of Synchrotron Radiation, Volume 31, Issue 4, Page 821-828, July 2024.
This study introduces a compact, portable femtosecond fibre laser system optimized for synchronization with SPring‐8 synchrotron X‐ray pulses in a uniform filling mode, offering a practical and cost‐effective alternative to traditionally, fixed, installed laser systems for time‐resolved spectroscopy combining synchrotron X‐ray pulses and laser pulses ...
Keisuke Kaneshima   +3 more
wiley   +1 more source

Dual-Polarization Distributed Feedback Fiber Laser Sensor Based on Femtosecond Laser-Inscribed In-Fiber Stressors for Simultaneous Strain and Temperature Measurements

open access: yesIEEE Access, 2020
We propose and experimentally demonstrate a novel dual-polarization distributed feedback fiber laser (DFB-FL) sensor based on femtosecond laser-inscribed in-fiber stressors. The resonant cavity of the DFB-FL sensor consists of a phase-shifted fiber Bragg
Kuikui Guo   +3 more
doaj   +1 more source

In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser

open access: yesIEEE Access, 2021
It is demonstrated that in this paper a peanut shaped structure cascaded with up-taper fiber structure can realize the inter mode interference between the Erbium doped fiber (EDF) core mode and cladding modes in fiber ring laser (FRL).
Weihao Lin   +8 more
doaj   +1 more source

Panoramic-reconstruction temporal imaging for seamless measurements of slowly-evolved femtosecond pulse dynamics [PDF]

open access: yes, 2017
Single-shot real-time characterization of optical waveforms with sub-picosecond resolution is essential for investigating various ultrafast optical dynamics.
Huang, Shu-Wei   +4 more
core   +3 more sources

Multistability manipulation by reinforcement learning algorithm inside mode‐locked fiber laser

open access: yesNanophotonics, Volume 13, Issue 16, Page 2891-2901, July 2024.
Abstract Fiber mode‐locked lasers are nonlinear optical systems that provide ultrashort pulses at high repetition rates. However, adjusting the cavity parameters is often a challenging task due to the intrinsic multistability of a laser system. Depending on the adjustment of the cavity parameters, the optical output may vary significantly, including Q ...
Alexey Kokhanovskiy   +9 more
wiley   +1 more source

Graphene-Based Saturable Absorber for Single-Longitudinal-Mode Operation of Highly Doped Erbium-Doped Fiber Laser

open access: yesIEEE Photonics Journal, 2012
In this paper, a conventional wavelength band (C-band) fiber laser with a tunable single-longitudinal-mode (SLM) output using multilayer graphene as a saturable absorber is demonstrated. The proposed fiber laser uses a short length of highly doped erbium-
F. D. Muhammad   +4 more
doaj   +1 more source

Vector Dissipative Solitons in Graphene Mode Locked Fiber Lasers

open access: yes, 2010
Vector soliton operation of erbium-doped fiber lasers mode locked with atomic layer graphene was experimentally investigated. Either the polarization rotation or polarization locked vector dissipative solitons were experimentally obtained in a dispersion-
Akhmediev   +35 more
core   +1 more source

Dielectric‐Metasurface‐Enhanced Kerr Self‐Modulation for Passively Q‐Switching

open access: yesLaser &Photonics Reviews, Volume 18, Issue 4, April 2024.
By exploiting the enhanced Kerr effect from a periodic array of silicon nanodisks, the Mie resonance of the unit cells enhances is redshifted, achieving a novel transmission modulation for pulsed laser generation. And a stable Q‐switched pulse laser output with a duration of 1.4 µs and a repetition rate of 60 kHz is achieved.
Pu Sun   +5 more
wiley   +1 more source

Single-Frequency and Single-Polarization DFB Fiber Laser Based on Tapered FBG and Self-Injection Locking

open access: yesIEEE Photonics Journal, 2015
A stable single-polarization narrow linewidth single-frequency distributed feedback (DFB) fiber laser is proposed and demonstrated. For the first time, to our knowledge, the tapered FBG written in the photosensitive large-mode-area (LMA) high ...
Bin Yin   +4 more
doaj   +1 more source

Absolute calibration of fiber-coupled single-photon detector

open access: yes, 2014
We show a setup for characterising the efficiency of a single-photon-detector absolutely and with a precision better of 1%. Since the setup does not rely on calibrated devices and can be implemented with standard-optic components, it can be realised in ...
Korzh, Boris   +3 more
core   +2 more sources

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