Description:
Anything about laser technology.
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CR:YAG
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What would be a good ballpark figure for the initial transmittance for a cr:yag passive q-switch? This would be for a flash lamp pumped nd:yag laser with about 100-300J of electrical power. I know there is probably a lot of math behind it, but that is far beyond me. Regards.
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ultra fast high power power laser beam steering, drilling
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Piezo oscillators or ultra-high scan speeds up to 4,000 Hz or 240,000 rpm with commercial air-bearing motors. REAL galvanometer scanner alternatives, precise laser beam deflection up to 4 Kilowatt Co2 by high dynamic performances. From 8 up to 15mm laser beam aperture diameter, advantage beam quality... more »
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Ruby laser
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Hi, for sale a motor q-switched ruby laser, the most known and common between laser hobbyist. This laser I bought new several years ago has been fired very few times, the flashlamp is perfect as well the ruby rod and all the assembly. See some pics of the laser at: [link]... more »
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Coherent Verdi Questions
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Hey Everyone, I recently got a Coherent Verdi head from a friend, however it was an IR version, and thus did not have the heater installed, additionally, the OC mirror, which normally would be AR@532nm HR@1064nm in the green version, was a OC@1064nm. I got a new mirror from a green version, so I will be installing it with the LBO and heater for the system.... more »
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Gain Bandwidth of Ne20 or Ne22 and natural isotope mixture
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Subject line says it all. By my estimate, the pure isotopes should have a gain curve that's between 500 MHz and 1 GHz narrower than the Ne isotope mixture occurring naturally. This because the gain center moves about 1 GHz when the ratio of Ne20:Ne22 is varied from 0 to 1). Thanks!
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Pulse laser preliminary recognition
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Hi everyone, I would like to ask if there is a way to recognize your laser has output pulse? I mean, how to distinguish with your eyes or low cost equipment that your laser emit pulse, not CW? Because I heard that the laser meter has two kind: power meter and energy meter. We must know exactly the output regime to use the correct meter, right? If using... more »
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Terabeam InGaAs APD receivers on eBay
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I just bought 31 pieces of an InGaAs APD photoreceiver part, made by Perkin Elmer for Terabeam (a dotcom sort-of-survivor that was going to transmit data via 1550 lasers through skyscraper windows). They have SF11 hemispherical lenses on them, but I haven't taken one apart to see what's inside exactly. They came with the test data.... more »
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