Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Search results

  1. S

    Yellow Laser finally after 25 years...

    Do these new 577nm modules use a SFD based process? Do they use a similar Yb doped crystal to the optlaser and lasence modules?
  2. S

    The unexpected 593.5

    Nd:YVO4 is not doing the summing, the summing is done in a different nonlinear crystal most likely KTP or LBO
  3. S

    Review of the Tinker brand 561nm SFDPSS Yellow-Green Laser Pen

    I've seen some that lase at 554nm and some that lase up to 563nm, also these laser's wavelengths can change due to temperature
  4. S

    Review of the Tinker brand 561nm SFDPSS Yellow-Green Laser Pen

    These are SFD (self frequency doubling) based lasers, they do use a Nd doped crystal and are pumped with an 808nm laser
  5. S

    589nm Spartan Yellow Laser — Review, Pictures, LPM Data

    This laser is not one of those "591nm" lasers that are mislabelled 593.5nm lasers, this is a true 589nm laser, these handhelds use CNI modules and have an IR filter within the module. 561nm is not produced from the SFG of 1064nm and 1319nm (589nm) or 1064nm and 1342nm (593.5nm)
  6. S

    The unexpected 593.5

    These use a 300-500mw diode inside, the same diodes as those in normal cheap 532nm lasers
  7. S

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    These 593.5nm lasers use MCAs, the frequency summing crystal and the Nd:YVO4 have been glued together and the mirrors have been coated onto the ends, this removes the need for careful alignment of the seperate optics, they also use very low powered pumps, only about 300mw, they are constructed...
  8. S

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Ah this makes more sense, 591nm is an unusual wavelength and it makes a lot more sense for it to be 593.5nm. how did you make this so cheap? Does this use some sort of MCA to lower the cost of does it use the conventional method of separate crystals and optics?
  9. S

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    This laser doesn't seem to use the same modules as the older CNI GLP pens
  10. S

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Lasence 561nm, 555nm and 545nm modules don't really degrade unlike the older 57Xnm ones so they might have solved the hygroscopic issue or they could be using a different crystal. O have not heard of any company that uses SFD crystals to make 591 so it is quite possible that this is some new...
  11. S

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Or these could just become unavailable like those 574nm lasence/optlaser modules
  12. S

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    I wonder what crystal they are using for 591nm, I just bought one, does anyone know who produces the modules in these?
  13. S

    561nm Build for sale!

    PM sent
  14. S

    Highest Power rare Wavelength Handheld ever build?

    Lasence have produced 1W 545nm modules, laserglow currently has a 100mw 671nm DPSS handheld laser for sale https://www.laserglow.com/product/orion-pro-red-portable-laser
  15. S

    The Little Diode That Could

    Do you think it could have LED'd?
  16. S

    Crazy AI chat

    This really is both amazing and scary, its amazing how can make a poem that seems like it was made by a person!
  17. S

    Crazy AI chat

    This is quite interesting, thank you for sharing this
  18. S

    Something new in the blue line.

    I've seen these arrays, they are really neat! Im hoping green and red arrays in this package come out as well
  19. S

    Does Your Red Laser 301 Burn?

    Yup, those cheap blue handheld lasers are usually between 1W and 1.5W





Top