William Angerer - Department of Physics and Astronomy - University ...

47
Maker fringe
autocorrelation
technique single beam SHG non-collinear two beam SHG
advantages ease of use observe tails of pulse
portability
disadvantages no direct information regarding difficult to align
temporal pulse shape
(no frequency information)
use commercial Ti:Ah03 laser systems homemade laser systems
regenerative amplifiers
Table 2.4: Comparison of ultrafast pulse measurement techniques. Higher order correlations,
e.g. non-collinear four wave mixing, provide additional information including
asymmetry in the pulse. These measurements are correspondingly more difficult to
align.
Table 2.-1 compares the damped Maker fringe and autocorrelation techniques for
measuring ultrafast laser pulse duration. One could construct a stand alone de\'ice
to measure ultrafast pulse durations by damped Maker fringes. A schematic of this
device is displayed in Fig. 2.10. This device would operate in a manner described by
the flow chart displayed in Fig. 2.9.
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.