For Stuka, A day at the office, redacted as needed. This is a OPO... For the wavelength collectors, this is 230 nm to 2.5 uM. in ~0.125 nm steps.
Steve
For Stuka, A day at the office, redacted as needed. This is a OPO... For the wavelength collectors, this is 230 nm to 2.5 uM. in ~0.125 nm steps.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...
yummy range! which crystals and wavelengths are you using, if allowed to know?
Cool toys!!
RR
Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
1979.
Sweet.....
1064 doubled to 532, 532 mixed with residual 1064 for 355, 355 pumps the OPO.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...
First pangolins, now opossums? Nice.
No gaps in that range? Sounds like a laser equivalent of a good AOR RF receiver. But even at a grand the receiver is probably cheaper by far.
No gaps, with options to extend to Deep UV and Mid IR if needed.
Steve
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I should have rented the space under my name for advertising.
When I still could have...
I won't ask if it can pop balloons, but I have to ask: is this something likely to scale into tunable show devices? Last I heard (read), there was another device, a fibre excited with sharp pulses, spreading them to form outputs that were said to allow some selections from a range of wavelengths, but I don't know what happened to that, or even if I understood it at all. I remember it was analogises with hitting a phone line between poles with a stick, and the selection of wavelenghs made by tuning resonances to favour them. A stretched wire while pitched, will produce very many frequencies if hit hard and fast, hence the analogy...
This tunable OPO laser sounds like a much cleaner way though.
This laser runs at 25 Hz and is pulsed, with a ~5 nanosecond pulse duration. It strobes. It is flashlamp based, and such systems are STILL in high demand. This is one of many cases where a lamp is more economical then diode based systems. 300$ for a spare flashlamp can get you two years or more of operation. We do make diode pumped systems as well, but not for this niche.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...
Not a show laser then. But that led to a more interesting thought... A Q-switch will shorten a pulse, raising peak power, for some loss, maybe analogisable with a hydraulic ram to pump water to greater height. But is there some way to do this the other way round? Can a quasi-CW laser exist based on a source of short hard pulses, being 'smoothed' to form a gently undulating beam that is almost as safe as CW would be for the same average power? I don't think I ever heard of anything like this, or even saw the question asked before..
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...