chirped

Chirped pulse amplification: review and prospective from diffractive optics [Invited] It is well-known that the chirped pulse amplification (CPA) technique won the award for the 2018 Nobel Prize in Physics to Mourou and Strickland. The compression and stretching using gratings is the ...

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Fabrication of kW-level chirped and tilted fiber Bragg gratings and filtering of stimulated Raman ... Suppression of stimulated Raman scattering (SRS) by means of chirped and tilted fiber Bragg gratings (CTFBGs) has become a key topic. However, research on high-power systems is still lacking due to ...

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chirped_chirpedFBG_ chirped fiber bragg grating

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Measurement of nonlinear coefficient of optical fiber based on small chirped soliton transmission 收稿日期：2007-09-03

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Chirped-pulse-based broadband RF channelization implemented by a mode-locked laser and dispersion Chirped-pulse-based broadband RF channelization implemented by a mode-locked laser and dispersion

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Diffraction in chirped volume Bragg gratings We use fundamental matrix (F-matrix) method derived from coupled wave theory to simplify the diffraction simulation of chirped volume Bragg grating (CVBG) and it can be applied to arbitrary grating ...

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The nonparaxial property of chirped pulsed beam The nonparaxial property of the chirped pulsed beam is analyzed both quantitatively and qualitatively. Through the qualitative investigation of the paraxial approximation condition, we show there are ...

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High-damage-threshold broadband chirped mirror A high-energy broadband chirped mirror is designed for sub-10-fs high-energy chirped-pulse oscillators and amplification systems. This mirror consists of TiO2/SiO2 quarter-wave coatings for a broad ...

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Integrative optimization of chirped mirrors for intracavity dispersion compensation A new integrative optimization of three chirped mirrors for precise broadband intracavity group delay<BR>dispersion compensation in ring cavity is proposed. Simulation demonstrates that the residual ...

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Incorporating a Linearly Chirped Fiber Grating We describe a simple method to generate wavelength-tunable pulses by using a semiconductor optical amplifier (SOA) as an intensity modulator and a gain medium. Wavelength tunable pulses at a ...

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Ultrashort chirped pulse evolution in silicon photonic nanowires We investigate the ultrafast nonlinear phenomena of picosecond chirped non-ideal hyperbolic secant pulse evolution in silicon photonic nanowire waveguides with sum frequency generation cross-...

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Generation of high-contrast, joule-level pulses based on Nd:glass chirped pulse amplification laser We demonstrate a high-contrast, joule-level Nd:glass laser system operating at 0.5 Hz repetition rate based on a double chirped pulse amplification (CPA) scheme. By injecting high-contrast, high-...

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Millijoule pulse energy picosecond fiber chirped-pulse amplification system A specially designed figure-of-eight fiber laser acts as the seed source of a chirped-pulse amplification (CPA) system and generates mode-locked pulses with hundreds of picosecond widths. Two kinds ...

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The generation of group delay ripple of chirped fiber gratings The analysis of the group delay ripple (GDR) generated by chirped fiber gratings is developed based on the Fabry-Perot (F-P) resonator. It shows clearly how the GDR is generated and why the periods of...

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Efficient idler broadening via oppositely dual-chirped difference frequency generation Dual-chirped difference frequency generation (DFG) is an advantageous technique for generating the broadband mid-infrared (IR) idler wave, which is inaccessible by a population-inversion-based laser ...

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Parasitic lasing in large aperture Ti:sapphire chirped pulse amplifier We research some properties of parasitic lasing (PL) in the Ti:sapphire chirped pulse amplifier with the crystal diameter of 100 mm. The evolutionary process from the spontaneous emission to the PL ...

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Design of a 100 TW Optical Parametric Chirped Pulse Amplification Laser System The optical parametric chirped pulse amplification (OPCPA) technique is promising for constructing a 100 TW/90 fs laser system. This laser system consists of a diode-pumped Nd: phosphate oscillator, ...

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任意布拉格波长Chirped光栅的写入 (1999年) 提出了一种波长写入范围达30 nm的Chirped光栅的构造方法,这种方法只需要一个会聚柱透镜、一个发散柱透镜和相位掩膜板,并且对光纤与相位掩膜板的距离与写入光栅的Bragg波长的关系进行了初步的理论与实验的研究。

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Chirped pulse distortion in stratified volume reflection gratings Chirped pulse distortion in stratified volume reflection gratings

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Stability analysis of linearly chirped Gaussian pulse stacking in laser plasma reaction We analyze the stability of linearly chirped Gaussian pulse stacking (LCGPS) in the laser plasma reaction (LPR) in the inertial confinement fusion (ICF) system. The LPR can be treated as the process ...

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Design of chirped Mo/Si multilayer mirror in the extreme ultraviolet region The chirped Mo/Si multilayer mirror in the extreme ultraviolet region is designed to obtain sub-femtosecond pulses from high-order harmonics. Numerical simulations of temporal profile of the pulses ...

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Diode-pumped Yb:SSO chirped pulse amplifier with 1 ps pulse duration We demonstrate a diode-pumped picosecond Yb-doped silicate Yb3+:Sc2SiO5 (Yb:SSO) chirped pulse amplifier. The seed source with a pulse width of 220 fs is a diode-pumped Yb:KGW femtosecond oscillator. ...

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Exact chirped multi-soliton solutions of the nonlinear Schrodinger equation with varying ... In this letter, exact chirped multi-soliton solutions of the nonlinear Schrodinger (NLS) equation with varying coefficients are found. The explicit chirped one- and two-soliton solutions are generated...

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Demonstration of joule-level chirped pulse amplification based on tiled Ti:sapphire amplifier A novel tiled Ti:sapphire (Ti:S) amplifier was experimentally demonstrated with >1 J amplified chirped pulse output. Two Ti:S crystals having dimensions of 14 mm× 14 mm× 25 mm were tiled as the gain...

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High-speed detection of terahertz pulse sequence by chirped pulse sampling technology We propose a chirped pulse sampling technology to measure the terahertz (THz) pulse sequence. The principle and detection resolution of this high-speed sampling technology have been discussed and ...

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Propagation dynamics of nonlinear chirped optical laser pulses in a two-level medium We investigate the propagation dynamics of nonlinear chirped optical laser pulses in a two-level medium. For certain chirp strength and chirp width, an incident 2π nonlinear chirped pulse will split ...

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Fiber chromatic dispersion measurement with improved measurement range based on chirped intensity ... A novel method for accurately measuring chromatic dispersion of optical fibers is proposed based on the use of chirped intensity-modulated signals. Unlike the conventional method, the proposed method ...

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Super-bunched focusing with chirped random-phase gratings Chirped random-phase gratings are designed to produce experimentally a super-bunched focusing effect with a high bunching peak value of

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PMD and CD Characterization of Chirped FBG Using Microwave Photonic Technique We present and demonstrate experimentally a new method for measuring the polarization-mode-dispersion(PMD) of a Chirped Fiber Bragg Grating. The technique has also been applied to accurate chromatic ...

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Wavelength-swept fiber laser based on bidirectional used linear chirped fiber Bragg grating A wavelength-swept fiber laser is proposed and successfully demonstrated based on a bidirectional used linear chirped fiber Bragg grating (LC-FBG). The wavelength-swept operation principle is based on...

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Analysis and evaluation of idler absorption for quasi-parametric chirped-pulse amplification Quasi-parametric chirped-pulse amplification (QPCPA) can improve the signal amplification efficiency and stability by inhibiting the back-conversion, in which the idler absorption plays a critical ...

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A novel tunable polarization mode dispersion compensator with strain chirped fiber Bragg gratings A tunable polarization mode dispersion (PMD) compensator based on strain-chirped fiber Bragg gratings (FBGs) is proposed. It natures in flexible designing, large tuning range, without using linear or ...

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Sub-picosecond chirped laser pulse-induced airflow and water condensation in a cloud chamber Sub-picosecond chirped laser pulse-induced airflow and water condensation were investigated in a cloud chamber. The results indicate that the positively chirped sub-picosecond laser pulses generate a ...

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Microwave photonic phase shifter with spectral separation processing using a linear chirped fiber ... A stable and broadband microwave photonic phase shifter based on the combined use of a linear chirped fiber Bragg grating and optical single-sideband (OSSB) modulation is proposed and experimentally ...

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Laser-induced controllable chirped-pitch circular surface-relief diffraction gratings on AZO glass Chirped-pitch nanoscale circular surface-relief diffraction gratings were photoinscribed on thin films of a Disperse Red 1 functionalized material using a holographic technique. A truncated conical ...

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High channel-count comb f ilter based on multi-concatenated sampled chirped fiber Bragg gratings A high channel-count comb filter based on multi-concatenated sampled chirped fiber Bragg gratings (MC-SCFBGs) is proposed and optimally designed by using several chirped gratings with different ...

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Simultaneously compensating tunable CD and adaptive PMD using two different nonlinearly chirped ... Two different nonlinearly chirped fiber Bragg gratings fabricated through the equivalent chirp technology were adopted in the experiment. One of the gratings was used as CD compensator, with a ...

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Fiber laser-pumped, chirped, PPMgLN-based high efficient broadband mid-IR generation We demonstrate a high-efficiency, high-power-nanosecond fiber laser-pumped broadband mid-infrared output based on a linearly chirped PPMgLN crystal. By using a linearly polarized pulsed Yb-doped fiber...

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Experimental research of circular incoherently synthetic aperture imaging ladar using chirped-laser ... Synthetic aperture imaging ladar (SAIL) technique belongs fully coherent processing in both the time domain and ... The experimental system is constructed by three subsystems using chirped-pulse laser as

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Analysis of ultra-broadband high-energy optical parametric chirped pulse amplifier based on YCOB ... A new type of optical parametric chirped pulse amplifier is designed and analyzed for the amplification of pulse centered at 808 nm. A novel crystal, yttrium calcium oxyborate YCa4O(BO3)3 (YCOB), is ...

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Study on the 4*10 Gb/s, 400 km dispersion compensation by chirped optical fiber grating In this paper, the dispersion compensation for 4*10 Gb/s, 400 km G.652 fiber by chirped optical fiberBragg grating (FBG) is introduced. For the first time, we have measured and compensated the ...

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Generating quasi-single-cycle THz pulse from frequency-chirped electron bunch train and a tapered ... Then, the laser pulse train illuminates the cathode to produce a frequency-chirped electron bunch train in a photocathode rf gun. Finally, the frequency-chirped electron bunch train passes through a ...

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Splicing technology of Ti:sapphire crystals for a high-energy chirped pulse amplifier laser system We develop a splicing technology of Ti:sapphire crystals for a high-energy chirped pulse amplifier laser system that can suppress the parasitic lasing to improve the amplification efficiency compared ...

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Multi-wavelength fiber ring laser based on a chirped moiré fiber grating and a semiconductor ... A simple and cost-effective multi-wavelength fiber ring laser based on a chirped Moiré fiber grating (CMFG) and a semiconductor optical amplifier (SOA) is proposed. Stable triple-wavelength lasing ...

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contrast degradation caused by surface reflection in optical parametric chirped-pulse amplification In this Letter, we experimentally explore the pulse-contrast degradation caused by surface reflection in optical parameter chirped-pulse amplification. Different pump-to-signal conversion efficiencies...

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1 053-nm all-f iber pulse multi-pass stretcher using a linear chirped fiber Bragg grating An all-fiber optical laser pulse multi-pass stretcher using a chirped fiber Bragg grating (CFBG) is demonstrated. Pulses from a 1 053-nm mode-locked fiber seed oscillator are stretched by multiple ...

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level diode-pumped fiber amplifiers with chirped and tilted fiber Bragg gratings Here, we have demonstrated the mitigation of SRS in kilowatt-level diode-pumped fiber amplifiers using a chirped and tilted fiber Bragg grating (CTFBG) for the first time. The CTFBG is designed and ...

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birefringence linearly chirped fiber Bragg grating A high-birefringence linearly chirped fiber Bragg grating (FBG) is written into a polarization-maintaining photosensitive fiber by ultraviolet (UV) beam through a linearly chirped phase mask....

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Effective suppression of stimulated Raman scattering in half ...chirped and tilted fiber Bragg gratings Here, we have demonstrated for the first time, to the best of our knowledge, the suppression of SRS in a half 10 kW tandem pumping fiber amplifier using chirped and tilted fiber Bragg gratings ...

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Numerical and experimental investigations of chirped-gratings-based Bragg-reflecting-coupler with ... Influences of gratings' chirp and coupler's length on the spectral responses of Bragg-reflecting-coupler are investigated detailedly. Both numerical and experimental results demonstrate that ...

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