[Laser] Re: My first experiments

[Tim Toast]

Xenon strobes are what i plan to be experimenting with
this year sometime. From what i've read, the strong
line in the infrared varies in strength depending on
the energy density of the pulse. Higher energy pulses
tend to have more blue + UV output and less red + IR
than lower energy. Also since the pulses are generally
narrow, it might help to lengthen them with some pulse
shaping circuits - i think this would also strengthen
the IR output lines.


Paul M0EME wrote:
"A plane going overhead sounded like a heart beat
because of the flashing landing lights. All in all I
am happy with my first experiment."


Yves wrote:
"I did a test with F8DO with a  20 joules stroboscope
flash for night club. F8DO could hear the beat at 40
km  from my QRA from the clouds but only if the repeat
rate was less than 5 pulse  each second. Above the
signal seems disappear."


J. Forster wrote:
"Xenon strobes have a WHOPPING line in the near IR
(somewhere around 900 nm as I remember). It is much
easier to 'see' a Xenon strobe with a silicon photo
diode than with the human eye because the spectral
line is near the sweet spot for Silicon photo diodes."





Tim Toast
http://www.aladal.net/toast/exp.html

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