t-Pulse Duo ultrafast oscillator0 pages

A n ew g e n e r a t i o n
o f u l t r a f a s t l a s e r s
t-Pulse Duo is a dual compact femtosecond
oscillator for pump-probe measurements
Features:
> Heterodyne optical sampling
> Simple and versatile pump-probe
measurement system
> 20 ns time measurement
window
> 1 W average power
> Dual-wavelength available
> 20 nJ per pulse
> Excellent pulse to pulse
stability
Dual diode pumped
femtosecond oscillator
Pump-probe techniques are widely used to measure events
on time scales much shorter than the resolution of electronic
detectors, and are applied in such diverse fields as ultrafast
spectroscopy, photo-acoustics, TeraHertz imaging, etc.
In ultrafast photoacoustics measurements, a pump beam
launched in the sample acoustic waves, is detected by a second,
temporally shifted probe beam. Typical detection methods rely
on very small changes in the reflection coefficient of the sample
surface, requiring an averaging of the signal to improve the signal
to noise ratio.
Traditional pump-probe methods use a mechanical delay line to shift
the two pulses in the time domain, where each measurement point
corresponds to a single mechanical position of the delay line.
Although very efficient for small measurement ranges, extending
this method in the hundreds of picoseconds or nanoseconds lead to a
very long acquisition time, and unpractical length for the delay line.
t-Pulse Duo is a compact dual-oscillator ultrafast laser system,
specifically designed for pump-probe measurements over time scales
as long as 20 ns, with a sub-picosecond resolution. This system does
not use any mechanical delay line, and allows for extremely fast
acquisition time.
t-Pulse Duo