Efficient high-harmonic generation from a stable and compact ultrafast Yb-fiber laser producing 100 μJ, 350 fs pulses based on bendable photonic crystal fiber

Feehan, James S.; Price, J.H.V.; Butcher, Thomas; Brocklesby, W.S.; Frey, Jeremy G.; Richardson, David J.

doi:10.1007/s00340-016-6620-8

Cited by 19 publications

(3 citation statements)

References 37 publications

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“…Our experimental testbed was developed in house and based closely on the Yb fiber CPA with a bendable final amplifierfiber reported in [21]. In brief, we used a femtosecond Ybdoped fiber laser oscillator based on nonlinear polarization rotation, followed by an EOM pulse picker (not active here), a grating-based pulse stretcher, core-pumped pre-amplifiers, a large-mode-area cladding-pumped power amplifier and a standard Treacy compressor.…”

Section: Experimental Workmentioning

confidence: 99%

Robust Phase Retrieval Using Group-Delay- Dispersion-Scanned Second-Harmonic Generation Demonstrated in a Femtosecond Fiber Chirped-Pulse Amplification System

Feng

Nilsson

Price

2018

IEEE J. Quantum Electron.

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We propose and demonstrate a phase retrieval method using a novel variant of the dispersion scan ('d-scan') technique via both simulations and experimental measurements on a femtosecond fiber laser. The method combines a map of group-delay-dispersion-scanned (d-scan) second-harmonic generation (SHG) spectra together with the fundamental spectrum as inputs. In order to ensure the technique is robust when pulseto-pulse fluctuations are present, we use only the wavelengths of the resulting SHG peaks, and avoid the areas with low signal in the borders of the data trace. Simulations confirmed the phaseretrieval is accurate even with high levels of laser fluctuation. The trade-off is that pulses which have abruptly changing or highly modulated phase profiles are not retrievable. The d-scan uses the compressor gratings intrinsic to the fiber chirped-pulse amplification (CPA) systems so the method is low cost. For experimental verification, we used a 470 fs ytterbium-fiber CPA system, so the method is applicable to measurements on fiber based fs laser systems which generally have an order of magnitude less bandwidth than the Ti:sapphire lasers used to test earlier variants of the d-scan approach.

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Section: Experimental Workmentioning

confidence: 99%

Robust Phase Retrieval Using Group-Delay- Dispersion-Scanned Second-Harmonic Generation Demonstrated in a Femtosecond Fiber Chirped-Pulse Amplification System

Feng

Nilsson

Price

2018

IEEE J. Quantum Electron.

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“…The extraordinary characteristics of PCF like compact nature, robust, less environmental effects, lightweight, and minimum cost makes PCF based devices more popular which can easily work in enormous environmental conditions (Knight 2003). As compared to PCFs, conventional fibers have less structural flexibility due to which they have limitations in their versatile applications as in high power mechanism (Feehan and Price 2017), nonlinear fiber optics (Humbert et al 2006), spectroscopy (Holzwarth et al 2000), metrology, sensing applications (Prajapati 2019;Arif and Biddut 2017b), super-continuum generation (Zhao 2017), optical coherence tomography (Zhao 2017), quantum dots (Chibrova 2017)etc. PCF has many advantages over the traditional fiber e.g., high nonlinearity and negative dispersion with very low confinement loss (Frazao et al 2008;Pandey et al 2020;Pandey et al 2021), tuneable and high birefringence (Knight et al 1996), high effective area (Arif and Biddut 2017a), polarization-maintaining capability (Cordeiro et al 2006;Ayyanar 2017).…”

Section: Introductionmentioning

confidence: 99%

Photonic crystal fiber with high nonlinearity and extremely negative dispersion

2021

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In this manuscript, we have designed a circular photonic crystal fiber (PCF) having three rectangular holes filled with GaP in the core region, three air hole rings and one annular air ring in the cladding region. We found highest negative dispersion for the 1.8 μm pitch along with very low confinement loss at wavelength 1.55 μm. This designed PCF offers high nonlinearity (39,612 W −1 km −1 ) and high negative dispersion (− 6586 ps nm −1 km −1 ) along with zero confinement loss at 1.55 μm wavelength. We also compared the proposed PCF with the previously published PCF structure and found that the nonlinearity and negative dispersion of the designed PCF are very high in comparison to circular air hole based PCF. Other performance parameters viz. birefringence, numerical aperture, effective area, and effective material loss are also analyzed.

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“…As compare to photonic crystal fibers conventional fibers have less structural flexibility. Due to this, conventional optical fiber have limitation in its versatile uses as in high power mechanism [10], nonlinear fiber optics [11], spectroscopy [12], metrology, sensing applications [13], super-continuum generation [14], optical coherence tomography [15], quantum dots [16], etc. In contrast, photonic crystal fiber (PCF) has compact nature, robustness, less environmental effects, light-weight, and minimum cost makes PCF based devices more popular which easily can work in enormous environmental conditions [17].…”

Section: Introductionmentioning

confidence: 99%

PCF Design With Extremely High Nonlinearity And Extremely Negative Dispersion

Pandey¹,

Maurya

Prajapati

2021

Preprint

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In this manuscript we designed a circular photonic crystal fiber (PCF) having three rectangular holes filled with GaP in the core region, three air hole rings and one annular air ring in cladding region. We found highest negative dispersion for the 1.8µm pitch alongwith very low confinement loss at wavelength 1.55µm. This designed PCF offers high nonlinearity (39612 W-1km-1) and high negative dispersion (-6586 ps nm-1 km-1) alongwith zero confinement loss at 1.55µm wavelength. We also compared the proposed PCF with the previously published PCF structure and found that the nonlinearity and negative dispersion of the designed PCF are very high in comparison to circular air hole based PCF. Another performance parameters viz. birefringence, numerical aperture, effective area and effective material loss are also analyzed.

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Efficient high-harmonic generation from a stable and compact ultrafast Yb-fiber laser producing 100 μJ, 350 fs pulses based on bendable photonic crystal fiber

Cited by 19 publications

References 37 publications

Robust Phase Retrieval Using Group-Delay- Dispersion-Scanned Second-Harmonic Generation Demonstrated in a Femtosecond Fiber Chirped-Pulse Amplification System

Robust Phase Retrieval Using Group-Delay- Dispersion-Scanned Second-Harmonic Generation Demonstrated in a Femtosecond Fiber Chirped-Pulse Amplification System

Photonic crystal fiber with high nonlinearity and extremely negative dispersion

PCF Design With Extremely High Nonlinearity And Extremely Negative Dispersion

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