TITLE

Note: A high performance pulse energy detector for Q-switched laser based on photoacoustic effect

AUTHOR(S)
Huang, Xiao-Chun; Guo, Xiao-Zhi; Weng, Yu-Xiang
PUB. DATE
April 2011
SOURCE
Review of Scientific Instruments;Apr2011, Vol. 82 Issue 4, p046103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A high performance pulse energy detector is developed based on photoacoustic effect. Different from the detectors reported before which also utilized photoacoustic effect, our detector can measure the energy of each pulse output from a Q-switched laser and monitor the pulse energy fluctuation in real time owing to the signal processing circuit designed. By comparing with a commercial laser energy meter, our detector is proved to be of high sensitivity and accuracy. We test the detector under illumination of different pulse energy at varied wavelengths, and the results demonstrate that the detector has a broad spectral response and a dynamical energy range. Besides, the measurements of this detector will not be affected by the background light according to the principle of photoacoustic effect.
ACCESSION #
60283547

 

Related Articles

  • Sensitive harmonic detection of ammonia trace using a compact photoacoustic resonator at double-pass configuration and a wavelength-modulated distributed feedback diode laser. Lima, G.; Mota, L.; Miklós, A.; Angster, J.; Dubovski, Z.; Silva, M.; Sthel, M.; Vargas, H. // Applied Physics B: Lasers & Optics;Oct2014, Vol. 117 Issue 1, p333 

    A sensitive detection of ammonia in parts per billion by volume is described. The system based on photoacoustic spectroscopy (PAS) consists of distributed feedback laser diode emitting near 1,531.7 nm and a compact PA cell at double-pass configuration. In order to optimize the signal background...

  • Large improvement of pumping rate in the He-CuCl-NiBr[sub 2] laser system. Saito, H.; Shiraiwa, Y.; Ishikawa, T.; Uno, K.; Fujii, K. // Applied Physics Letters;4/9/2001, Vol. 78 Issue 15, p2113 

    A Ni atom is employed as the energy donor to a Cu upper laser level. After the energy transfer is done by collision between Ni and Cu atoms, the population of the Cu upper laser level is enhanced via a cascading decay resulting in a four-level excitation loop. The peak value of the lasing pulse...

  • Hollow waveguide clips femtosecond pulse wings. Jones-Bey, Hassaun A. // Laser Focus World;Aug2002, Vol. 38 Issue 8, p17 

    Presents solutions to problems in developing hundred-terwatt and one-petawatt laser systems. Advantage of filtering the pedestal out of short pulses; Effects of a gas-filed hollow waveguide on self-focusing power levels; Use of nonlinear ellipse rotation to enhance pulse contrast.

  • Phase-domain photoacoustic sensing. Fei Gao; Ruochong Zhang; Xiaohua Feng; Siyu Liu; Ran Ding; Kishor, Rahul; Lei Qiu; Yuanjin Zheng // Applied Physics Letters;1/16/2017, Vol. 110 Issue 3, p1 

    As one of the fastest-growing imaging modalities in recent years, photoacoustic imaging has attracted tremendous research interest for various applications including anatomical, functional, and molecular imaging. The majority of the photoacoustic imaging systems are based on the time-domain...

  • Pulse repetition rate up to 92 GHz or pulse duration shorter than 110 fs from a mode-locked semiconductor disk laser. Klopp, P.; Griebner, U.; Zorn, M.; Weyers, M. // Applied Physics Letters;2/14/2011, Vol. 98 Issue 7, p071103 

    A semiconductor disk laser based on an InGaAs/AlGaAs quantum-well gain medium was mode-locked by a fast semiconductor saturable absorber mirror. By high-order harmonic mode-locking a 92 GHz pulse train was obtained with a pulse duration of <200 fs. In order to achieve fundamental mode-locking,...

  • Generation of ultrafast mid-infrared laser by DFG between two actively synchronized picosecond lasers in a MgO:PPLN crystal. Xuan, H.; Zou, Y.; Wang, S.; Han, H.; Wang, Z.; Wei, Z. // Applied Physics B: Lasers & Optics;Sep2012, Vol. 108 Issue 3, p571 

    We report the difference-frequency generation (DFG) of ultrafast mid-infrared laser radiation around 3 μm between two picosecond laser pulses with the center wavelengths of 800 nm and 1064 nm in a MgO:PPLN crystal at room temperature. The two laser pulses were generated from the actively...

  • Dual-wavelength passively mode-locked Nd: GdVO laser with orthogonal polarizations. Tan, W.; Tang, D.; Xu, C.; Zhang, J.; Yu, H.; Zhang, H. // Applied Physics B: Lasers & Optics;Apr2011, Vol. 102 Issue 4, p775 

    passively mode-locked dual-wavelength Nd: GdVO laser with orthogonal polarizations is experimentally demonstrated. By changing the absorbed pump power, the laser can mode lock either at 1063 nm (with π polarization) or 1065 nm (with σ polarization), or simultaneously at both wavelengths...

  • Gain switching of semiconductor injection lasers. Lau, K. Y. // Applied Physics Letters;1/25/1988, Vol. 52 Issue 4, p257 

    The limiting factors in short pulse generation by gain switching of semiconductor lasers are analyzed using an approach parallel to conventional Q switching analysis. The dependence of the gain-switched pulse width and pulse energy on various input parameters such as drive current amplitude,...

  • Gain dispersion induced subpicosecond pulse breakup in a fiber and semiconductor laser amplifier combined system. Kao, Y.-H.; Goltser, I. V.; Jiang, M.; Islam, M. N.; Raybon, G. // Applied Physics Letters;12/30/1996, Vol. 69 Issue 27, p4221 

    We observe pulse breakup for 650-fs pulses propagating through 9 m of optical fiber followed by an InGaAsP amplifier. The pulses are broadened by a factor of two, and a second peak appears at about 2 ps after the main peak. To identify the responsible mechanisms, we solve numerically the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics