pro - Toptica

Frequency Converted Lasers
TA-SHG pro
Frequency Doubled High Power Diode Lasers
TA-SHG pro — high power, cw, tunable
UV, blue or green laser source
(inside view).
Key features
· UV, blue, green laser radiation:
323 .. 540 nm (with only few gaps)
· Up to 400 mW output power
· Tunable single-frequency emission, typ.
linewidth < 500 kHz
· Probe beam output of fundamental
laser
· Increased amplitude stability with
“noise eater” option
Schematic of the TA-SHG pro system:
high power at common and exotic
wavelengths.
26 www.toptica.com
High power, tunable UV, blue
or green laser light
Many applications require narrow linewidth,
tunable high power laser radiation at
specifi c wavelengths ranging from the UV
to the green spectrum of light. Examples
are laser cooling of atoms and ions, plasma
spectroscopy or holography. The TA-
SHG pro is not only the system of choice
for these applications but also serves as
a replacement of HeCd or Ar-ion lasers,
especially if single frequency operation and/
or tunability are required.
From a conceptual point of view as well
as from the physical size of control rack
and laser head, the TA-SHG pro system is
very similar to the DL-SHG pro laser. The
main difference between the two is that in
the TA-SHG pro system the master laser
is amplifi ed by a tapered amplifi er section
and additionally optically isolated before
it is coupled into the SHG pro resonator.
Therefore, signifi cantly higher output powers
are possible. A special feature of the TA-SHG
pro is the optional output power regulation.
All other premium characteristics of the DL-
SHG pro are maintained also in the TA-SHG
pro. Ultra-low noise sensitivity, best long
term stability of the laser frequency and
output power as well as ease of use are just
a few of them.
The TA-SHG pro lasers are available
within a wide wavelength range (currently
available 323 .. 540 nm with only few
spectral gaps). Being customized systems,
TA-SHG pro characteristics might vary
from solution to solution. Depending on the
design wavelength, typical output powers
of 10 mW to 400 mW are available. Besides
the output power, the other parameters are
similar to the ones achieved in the DL SHG
pro systems (see table “Specifi cations
Frequency Converted Lasers”, page 29).
TA-SHG applications
· Laser cooling and spectroscopy of atoms
(e.g. Sr, Yb, Ca, Cr, Er, He, Mg, ...)
· Laser cooling and spectroscopy of ions
(e.g. Ca, Yb, Ba, ...)
· Rydberg excitation
· Plasma spectroscopy
· Optical data storage, holography
and interferometry