- Jan 1, 1970
Kai-Martin said:How does "Light Amplification by Stimulated Emission of Light" exclude
Also, diode lasers are notorious for modulating all by them self.
Most TiSa Lasers can be modulated by mirrors sitting on piezo actuators.
Knock on the housing of a running gas laser and its output frequency jerks.
Makes me wonder if there is any type of laser that can not be modulated.
You can even keep the laser untouched and modulate the beam itself. The
gadgets to do this are called EOM and AOM. These are acronyms for "electro
optic modulator" and "acousto optic modulator".
I'd thought to mention AOM (PCAOM) but didn't because I was out of my depth
there. Although they are frequency controlled, do they not select or
attenuate existing wavelengths of the light sent into them, rather than
modulate its frequency? If they really do frequency modulation, they would be
maybe the most interesting devices I've heard of in the last ten years or more,
and I seriously need to do some reading...
About jumps of frequency in gas lasers, that might my a momentary Doppler
thing? I'm thinking that would readjust as soon as it could, to whatever the
lasing medium wants to put out.
Agreed about diode lasers. Another poster mentioned that too. I'd considered
their temperature dependence before I saw either of these posts, but I decided
that this was so slow I couldn't call it modulation, as such.