Title :
Laser Driver for a Photoinjector of an Electron Linear Accelerator (February 2014)
Author :
Gacheva, Ekaterina I. ; Poteomkin, Anatoly K. ; Khazanov, Efim A. ; Zelenogorskii, Victor V. ; Katin, Eugeny V. ; Luchinin, Grigory A. ; Balalykin, Nikolay I. ; Minashkin, Vladimir F. ; Nozdrin, Mikhail A. ; Trubnikov, G.V. ; Shirkov, Grigory D.
Author_Institution :
Inst. of Appl. Phys., Nizhny Novgorod, Russia
Abstract :
The presented laser driver for a photoinjector of an electron linear accelerator delivers 10-ps long laser pulses with the energy of 1.85 μJ at the wavelength of 262 nm. Laser pulses irradiating with the repetition rate of 10 MHz form the rectangular 800-μ s long pulse trains with 18.5-W mean power inside them. The pulse train repetition rate is 10 Hz. Short-lived absorption centers accumulating in BBO fourth-harmonic generator crystal cause significant distortion of the pulse train envelope. The envelope remains rectangular due to precompensating of these distortions in the fiber acousto-optical modulator with fast varying transmission.
Keywords :
acousto-optical modulation; barium compounds; boron compounds; driver circuits; electron accelerators; fibre lasers; light absorption; linear accelerators; optical distortion; optical harmonic generation; ytterbium; BBO; BBO fourth-harmonic generator crystal; Yb; electron linear accelerator; energy 1.85 muJ; fiber acousto-optical modulator; laser driver; laser pulse irradiation; laser pulse train envelope distortion; light transmission; photoinjector; power 18.5 W; short-lived absorption centers; time 10 ps; time 800 mus; wavelength 262 nm; ytterium fiber laser; Absorption; Crystals; Harmonic analysis; Laser excitation; Lenses; Optical fiber amplifiers; Optical fiber polarization; Optical harmonic generation; Yb fiber laser; photoinjector; transient optical absorption;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2014.2323472
