Compact energy measuring system for short pulse lasers

• Autorzy: Barna A. , Földes I. B. , Gingl Z. , Mingesz R.
• Języki publikacji: EN

Abstrakty

EN

In experiments with short-pulse lasers the measurement control of the energy of the laser pulse is of crucial importance. Generally it is difficult to measure the amplitude of the pulses of short-pulse lasers using electronic devices, their response time being longer than the duration of the laser pulses. The electric response of the detector is still too fast to be directly digitized therefore a peak-hold unit can be used to allow data processing for the computer. In this paper we present a device which measures the energy of UV short (fs) pulses shot-byshot, digitizes and sends the data to the PC across an USB interface. The circuit is based on an analog peak detect and hold unit and the use of fiber optical coupling between the PC and the device provides a significant improvement to eliminate potential ground loops and to reduce conductive and radiated noise as well. The full development is open source and has been made available to download from our web page (http://www.noise.inf.u-szeged.hu/Instruments/PeakHold/).

Słowa kluczowe

EN

laser energy; optical fiber; USB; peak-hold; UV short pulse; open source

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2013
• Tom: Vol. 20, nr 2
• Strony: 183--190
• Opis fizyczny: Bibliogr. 13 poz., fot., rys., wykr.

Twórcy

autor

Barna A.

• University of Szeged, Department of Experimental Physics, Dóm tér 9., 6720 Szeged, Hungary
• Wigner Research Centre for Physics, Hungarian Academy of Sciences, Association EURATOM HAS, P.O.B. 49, 1525 Budapest, Hungary

autor

Földes I. B.

• Wigner Research Centre for Physics, Hungarian Academy of Sciences, Association EURATOM HAS, P.O.B. 49, 1525 Budapest, Hungary

autor

Gingl Z.

• Department of Technical Informatics, University of Szeged, Árpád tér 2., 6720 Szeged, Hungary

autor

Mingesz R.

• Department of Technical Informatics, University of Szeged, Árpád tér 2., 6720 Szeged, Hungary

Bibliografia

• [1] Campbell E E B, Ashkenasi D and Rosenfeld A (1999) Ultra-Short-Pulse Laser Irradiation and Ablation of Dielectrics Materials Science Forum, 301, 123-144.
• [2] Konorov S O et al (2004) Laser Ablation of Dental Tissues with Picosecond Pulses of 1.06-um Radiation Transmitted through a Hollow-Core Photonic-Crystal Fiber Appl. Opt., 43, 2251-2256.
• [3] Ledingham K W D et al (2000) Photonuclear Physics when a Multiterawatt Laser Pulse Interacts with Solid Targets Phys. Rev. Lett., 84, 899-902.
• [4] Baker H J (1975) A peak hold energy readout circuit for use with pyroelectric laser energy monitors J. Phys. E: Sci. Instrum., 8, 261.
• [5] Smirl L A, Shoemaker R L, Hambenne J B and Matter J C (1978) Simple laser pulse energy monitor Rev. Sci. Instrum., 49, 672.
• [6] Kuroda S (1983) Simple and inexpensive peak-and-hold circuit J. Phys. E: Sci. Instrum., 16, 1150.
• [7]Guzik Z, Borsuk S, Traczky K and Plominski M (2006) TUKAN . An 8K Pulse Height Analyzer and Multi-Channel Scaler with a PCI or a USB Interface Nuclear Science, IEEE, 53, 231-235.
• [8] Vetrivel L and Sivaram B M (1995) Computer-controlled high-speed peak detector for use with pulsed lasers Rev. Sci. Instrum., 66, 2394-2399.
• [9] Kopasz K, Makra P, Gingl Z (2011) Edaq530: a transparent, open-end and open-source measurement solution in natural science education Eur. J. Phys., 32, 491.
• [10] Gingl Z (2011) Fabricate a high resolution sensor-to-USB interface EDN 56, 54-57.
• [11] Szatmári S (1993) High-Brightness Ultraviolet Excimer Lasers Appl. Phys. B, 58,221-223.
• [12] Rácz E, Földes I B, Kocsis G, Veres G, Eidmann K and Szatmári S (2006) On the effect of surface rippling on the generation of harmonics in laser plasmas Appl. Phys. B,82, 13-18.
• [13] Földes I B, Barna A, Csáti D, Szűcs F L and Szatmári S (2010) Plasma mirror effect with short-pulse KrF laser J. Phys.: Conf. Ser. 244