For experimental use you are probably better advised to use a dye laser or a
Fabry-Perot laser as both are available on the surplus market and both are
‘tunable’ and leave the VCSEL till you have a functioning prototype
On Jun 11, 2018, at 4:29 AM, Dana Whitlow wrote:
I should have written
I should have written more clearly- the adhesive in question was *not* in
the optical path.
As is usual, variations are possible, one supposedly being that the crystal
that lases
at 1064 nm is also doped with something to make it nonlinear (so I've
read). I kind of
have my doubts over this,
The better ones use optically contacted crystals to avoid browning of the
adhesive due to the high power densities of the 1064nm laser required for
efficient frequency doubling.
Brue
> On 11 June 2018 at 22:52 Dana Whitlow wrote:
>
>
> Mark's description about how (most) green laser pointers
Mark's description about how (most) green laser pointers work is a bit in
error, and is perhaps
over-simplified- the reality is actually more fascinating yet:
First a diode laser operating at around 808 or 809 nm is used to optically
pump a solid
state laser which generates light at 1064 nm.
PPLN (Periodically poled lithium Niobate) is the frequency doubler of choice
for such applications however it needs to operated in a temperature regulated
oven.
To achieve efficient frequency doubling the input light needs to remain in sync
with the frequency doubled output light as they
Well, no. Green laser pointers convert a rather high power 800 nm laser to
1600 nm in one crystal then divide it to 533 nm in another one. The physics
and manufacturing of them is best described as black magic. They are cheap
because China developed the process to grow the crystals in bulk
