Correlating pulses from two spitfire, 800nm lasers

Author

Zacherl, W. ; Colby, E. ; Plettner, T. ; McGuinness, C.

Author_Institution

SLAC, Menlo Park

fYear

2007

fDate

25-29 June 2007

Firstpage

3121

Lastpage

3123

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4440688

Filename

4440688