intracavity energieopslag q modulatie
rondom-intracavity energieopslag q modulatie
Output Characteristics of Q-switched Solid-State Lasers Using …
The output behavior of a Nd:YAG solid-state laser actively Q-switched by a MEMS scanning micromirror is presented. Using a gold-coated micromirror, maximum aver.
High Efficiency and High Stability for SHG in an Nd:YVO4 Laser with a KTP Intracavity and Q-Switching through Harmonic Modulation
Laser with a KTP Intracavity and Q-Switching through Harmonic Modulation Samuel Mardoqueo Afanador Delgado 1, ... By applying controlled external modulation and using passive Q-Photonics 2023, 10, 454 3 of 14 switching, it is possible to stabilize the ...
Intracavity energy dynamics for different cavity lengths of two.
The Q-switched EDFL operated at the center wavelength of 1559.6 nm, which had the shortest pulse width of 2.2 µ s, the maximum repetition rate of 86 kHz and the highest …
Active modulation of intracavity laser intensity with the …
Here we report a novel, to the best of our knowledge, method of active intracavity intensity modulation for cavity-enhanced photoacoustic spectroscopy (PAS) without the need for any external optical modulators. Based on the Pound–Drever–Hall (PDH) locking ...
Characterization of laser-diode end-pumped intracavity frequency doubled, passively Q …
Simultaneous Q-switching and mode-locking in a laser-diode end-pumped intracavity frequency doubled Nd:YVO 4 /KTP green laser using Cr 4+:YAG saturable absorber is experimentally demonstrated.The influence of the initial transmission (T 0) of the Cr 4+:YAG crystal on the Q-switched mode-locked green pulses as well as on the average green …
Intracavity Zeeman modulation detection of NO and passive Q
By Zeeman modulation at zero external field strong signals are observed with an intracavity configuration. The observation of a Lamb dip shows that the tuning range of one CO laser line covers the centre of the NO absorption. Passive Q-switching is obtained with
Intracavity frequency doubling at 261nm of an actively Q-switched …
We report actively Q-switched deep ultra-violet laser operation at 261nm by intracacity frequency doubling of InGaN laser diode pumped Pr:LiFY4 laser. We obtained a maximum peak power of 61.6W(8.7 μJ/pulse) at 261 nm.
Q-switching near-infrared multiwavelength generation by intracavity …
We report on the generation of a stable multiwavelength Q-switched erbium-doped fiber laser based on tungsten oxide nanoparticles (WO 3 NPs) combined with an intracavity comb filter for the first time, to the best of our knowledge. The prepared WO 3-PVA thin film has a modulation depth and saturable intensity of 20% and 100 MW/cm 2, respectively.
Experimental optimization and dynamics solution of …
By applying a prepared 3 nm-thick tungsten diselenide (WSe 2) saturable absorber to an electro-optic (EO) modulated fundamental-light laser, an active and …
Theoretical and experimental investigations on idler-resonant intracavity KTA OPO pumped by a dual-loss-modulated Q …
Ta2NiS5 nanosheets were fabricated and analyzed for their microstructures and nonlinear optical responses. As a saturable absorber (SA), Ta2NiS5 was integrated into an idler-resonant KTiOAsO4 (KTA)-based intracavity optical parametric oscillator (IOPO) pumped by a dual-loss-modulated Q-switched YVO4/Nd:YVO4 laser. At an incident pump power …
Analysis of a laser-diode end-pumped intracavity frequency-doubled passively Q …
A diode-pumped intracavity frequency-doubled passively Q-switched and mode-locked c-cut Nd3+:GdVO4/KTP green laser with a Cr4+:YAG saturable absorber is experimentally demonstrated for the first time. Over 95% modulation depth for the mode-locked green pulses has been achieved. By using hyperbolic secant function methods, considering the …
Mode locking of a Q-spoiled Nd3+ doped glass laser by …
Mode locking has been obtained in the case of a Q-spoiled solid state laser by intracavity phase modulation. The modulation depth of the laser emission depends on the applied …
(PDF) Synchronized multi-wavelength soliton fiber laser via intracavity group delay modulation …
via intracavity group delay modulation Dong Mao 1, Huaqiang Wang 1, Heze Zhang 1, Chao Zeng 1, Yueqing Du 1, Zhiwen He 1, Zhipei Sun 2 & Jianlin Zhao 1
(PDF) High Efficiency and High Stability for SHG in an Nd:YVO4 …
In this paper, the stabilization and high efficiency of an unstable Second Harmonic Generation (SHG) of an Nd:YVO4 laser with a KTP intracavity is demonstrated. By using …
Intracavity-frequency-doubled Q-switched and mode-locked …
By using mixed crystal Nd:Lu 0.15 Y 0.85 VO 4 as laser medium, KTP as frequency-doubling crystal, a diode-pumped intracavity-frequency-doubled Q-switched and mode-locked (QML) Nd:Lu 0.15 Y 0.85 VO 4 /KTP green laser with acousto-optic (AO) modulator and central semiconductor saturable absorption mirror (C-SESAM) is realized by using a V-type cavity.
A new Q switching method by intracavity phase modulation in a …
A new Q switching method for a semiconductor laser is proposed that uses an intracavity phase modulation due to the electro‐optic effect. It consists of an amplifier and two phase modulators driven by a microwave signal in a branching waveguide structure. It is ...
Experimental optimization and dynamics solution of active-passive Q-switched intracavity optical parametric oscillator based …
The nonlinear transmittance indicates the saturable absorption characteristics of WSe 2-SA, which is measured with a Q-switched solid-state laser of 10 kHz repetition at 1.06 μm wavelength (239mW average output power and 81 ns pulse width, with 2.2 W input LD power), as is shown in Fig. 2 (a). (a).
Intracavity-frequency-doubled Q-switched and mode-locked …
Request PDF | Intracavity-frequency-doubled Q-switched and mode-locked Nd:Lu0.15Y0.85VO4/KTP green laser with AO modulator and central SESAM | By using mixed crystal Nd:Lu0.15Y0.85VO4 as laser ...
A high-resolution fiber optic accelerometer based on intracavity phase-generated carrier (PGC) modulation …
@misc{etde_22186196, title = {A high-resolution fiber optic accelerometer based on intracavity phase-generated carrier (PGC) modulation} author = {Lin, Qiao, Chen, Liuhua, Li, Shu, and Wu, X} abstractNote = {A compact-size fiber optic accelerometer was designed to achieve both high resolution and wide dynamic range concurrently. ...
Dual-loss-modulated Q-switched mode-locked laser intracavity …
Using an acousto-optic modulator (AOM) and Cr4+:YAG as the dual-loss modulation, an intracavity KTiOPO4 optical parametric oscillator (OPO) pumped by a simultaneously Q-switched and mode-locked (QML) YVO4/Nd:YVO4 laser was realized. The shortest mode-locking pulse duration of the signal wave at 1573 …
Low-threshold supercontinuum generation and optimization of PCF-intracavity-excited Q …
We experimentally demonstrate a low-pump-threshold all-fiber supercontinuum (SC) source based on PCF-intracavity-excited Q-switched laser. By inserting a silica PCF into 1.06 μ m actively Q-switched double-clad Yb-doped fiber lasers, a flat SC in the wavelength range of 500–1950 nm can be efficiently initiated with a low SC pump-threshold and the SC output …
Simultaneous Q-switching and mode-locking in an intracavity frequency doubled diode-pumped …
We report intracavity second harmonic (at 532 nm) generation in a passively Q-switched mode-locked Nd:YVO 4 laser. The width of a typical Q-switched envelope of the mode-locked pulses for the green laser was around 65 ± 5 ns and the repetition rate for the mode-locked pulses was 400 MHz. ...
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Intracavity wavelength modulation of an optical parametric oscillator for coherent Raman microscopy
Intracavity wavelength modulation of an optical parametric oscillator for coherent Raman microscopy Brian G. Saar1,†, Gary R. Holtom1,†, Christian W. Freudiger1,2, Chrisita Ackermann3, Winfield Hill4 and X. Sunney Xie1,* 1Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA ...
Low-threshold supercontinuum generation and optimization of PCF-intracavity-excited Q …
In our experiment, we found that in a large repetition-rate range of 100 Hz–10 kHz with the modulation duty of 1–60%, the similar SC output can be always obtained with the good flatness and the broad bandwidth of 500–1950 nm. Fig. 3 (a) and (b) give the typical SC spectral evolutions with the Q-switched repetition rate of 2 kHz and 6 kHz, respectively.
Experimental optimization and dynamics solution of active-passive Q-switched intracavity …
A doubly Q-switched Tm 3+:YAlO 3 (Tm:YAP) laser based on the Cr 2+:ZnS saturable absorber (SA) and electro-optical modulator (EOM) is presented.The pulse duration of the doubly Q-switched lasers is shorter as compared to single actively and passively Q-switched operations.-switched operations.
Synchronized multi-wavelength soliton fiber laser via intracavity group delay modulation
Principle and setup Figure 1 shows the concept and experiment setup of the synchronized multi-wavelength mode-locked soliton fiber lasers via intracavity group delay modulation. The longitudinal ...
(PDF) High Eficiency and Stability into SHG of a …
In this paper, the stabilization and high efficiency of an unstable Second Harmonic Generation (SHG) of an Nd:YVO4 laser with a KTP intracavity is demonstrated. By using a passive Q-switching ...
Theoretical and experimental investigations on idler-resonant …
As a saturable absorber (SA), Ta2NiS5 was integrated into an idler-resonant KTiOAsO4 (KTA)-based intracavity optical parametric oscillator (IOPO) pumped by a dual-loss …
Intracavity Zeeman modulation detection of NO and passive Q
By Zeeman modulation at zero external field strong signals are observed with an intracavity configuration. The observation of a Lamb dip shows that the tuning range of one CO laser line covers the centre of the NO absorption. Passive Q-switching is obtained ...