Title :
Correlating pulses from two spitfire, 800nm lasers
Author :
Zacherl, W. ; Colby, E. ; Plettner, T. ; McGuinness, C.
Author_Institution :
SLAC, Menlo Park
Abstract :
The E163 laser acceleration experiments conducted at SLAC have stringent requirements on the temporal properties of two regeneratively amplified, 800 nm,Spitfire laser systems. To determine the magnitude and cause of timing instabilities between the two Ti:sapphire amplifiers, we pass the two beams through a cross-correlator and focus the combined beam onto a Hamamatsu G1117 photodiode. The photodiode has a bandgap such that single photon processes are suppressed and only the second order, two-photon process produces an observable response. The response is proportional to the square of the intensity. The diode is also useful as a diagnostic to determine the optimal configuration of the compression cavity.
Keywords :
accelerator cavities; amplifiers; optical pulse shaping; particle beam focusing; photodiodes; timing; two-photon processes; Al2O3:Ti; E163 laser acceleration experiments; Hamamatsu G1117 photodiode; Nd:YLF lasers; Spitfire laser systems; Ti:sapphire amplifiers; bandgap; beam focus; compression cavity; correlating pulses; cross-correlator; electron acceleration; optimal configuration; timing instabilities; two-photon process; wavelength 527 nm; wavelength 800 nm; Acceleration; Delay; Laser excitation; Laser mode locking; Optical pulses; Photodiodes; Photonic band gap; Pump lasers; Semiconductor lasers; Timing;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440688
