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  1. C

    PGLIII for holograms?

    dang...my friend just broke his PGLIII - and he had put an investment of $800 into that thing. Oh well I just bought a laser off of eBay from http://www.einsoetech.com 650nm, 60mW, TEM00, built in cooling and power stabilizing circuitry, $389 with shipping I'm still checking whether the...
  2. C

    PGLIII for holograms?

    cool... Yeah I'm sure that gas leaking thing is less of a problem then it was before. And a good laser is a good laser, I don't really care what technology is driving it. I would think that to be the same opinion of everyone else. And let's say that all laser types are just as good - then...
  3. C

    PGLIII for holograms?

    I would say that the higher you crank the juice, the more unstable and the more variety of frequencies you will get from your laser (regardless of what type of laser it is). That is one reason why garden variety laser pointers [and the diodes they sell in holography kits] do the job - no one is...
  4. C

    PGLIII for holograms?

    Only that one version of crystalaser has TEM00 and Single Longitudinal Mode There are three parts to good coherence length (for all laser types): 1) Transverse beam mode 2) Longitudinal mode 3) Linewidth Transverse beam mode determines the shape of the beam - only TEM-Infinity [TEM00] is a...
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    PGLIII for holograms?

    sorry I didn't mean to be rude ... But it just seems like this thread reeks of ignorance (again sorry). Let the first person who has tried to make a hologram with a diode laser say diode lasers suck - then I will believe them. It seems like all you people are making conjectures - don't be so...
  6. C

    PGLIII for holograms?

    It is not true at all that the coherence length of diode lasers is only a few centimeters. Find any holography kit online, the ALL use diode lasers. Check out www.holoworld.com - a typical laser pointer was used to make holograms with depths measured it FEET, not centimeters. And they sell...

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