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The 50 degrees C is probably the maximum temperature.

Temperature control is the key, at or near ambient minimizes demands on the TEC and drive. I believe these are TEM 00 but not single longitudinal mode; data sheets can have that mistake. "Single Transverse Mode" TEM 00"

Large (Really large) area heat sinks with no fan is the way to go. It takes a while for the table and the air to become still after you turn them off and if you forget to turn them on your laser may overheat. Also during the hologram the laser baseplate is slowly ramping up; this can cause a laser m...

Lasos 532 nm 50 mW system pure SLM and very stable. Ready to use right out of the box. < 5 MHz linewidth, 1% power stability over 8 hours. $850 including shipping to the USA. All new build parts, SFPI tested. Phil and Sam

Have the forums on Facebook completely taken over? Most of the posts here seem to be me trying to sell lasers. Seems sad....best, Phil

New 40 mW SLM 561 nm laser system. About an hour on the timer. Built ready to make holograms out of the box. This is a 561 nm version of the Coherent 315M. New laser, heat sink, build box, DC supply-all new. Professional build.

$1,750 plus shipping. Phil and Sam

Two nice lasers are available complete with the matching badass power supply. 1 meter long class LHP 827 (35 mW) and LHP 927 (37 mW). Both excellent condition with a good TEM 00 beam. $1,250 shipped to the USA! Get one.....30 day money back or exchange warranty. 8-) I can send pictures before you bu...

This laser sold on EBay but we have more coming....

no idea why the other two pictures didn't post....

Clean used JDS 1145P measured at 21 mW polarized 500:1 TEM 00. Ready to make Holograms including a broad range Melles Griot 915-065 lab supply. $750 on eBay but $650 here with free shipping to the USA!