Rami Arieli: "The
Laser Adventure" Chapter 6.2.3 page 3
Tuning the Laser Wavelength
An example of such tuning element can be seen in figure 6.17, which
show a prism inside the optical cavity.
Figure 6.17: Choosing a single wavelength in a
tunable laser with a prism.
The dispersion of the prism cause each
wavelength to bend at different angle, and only one wavelength will continue
to move back and forth within the optical cavity.
Moving the prism enable selecting the desired
wavelength.
The pump bands are:
-
[nm]
spectrum range which is suitable for flash-lamps.
-
[nm]
which is suitable for diode laser pumping.