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I was interested in O-Like's High Power 500mW 532nm green laser torch /crystal isolation stab and was wondering if anyone has purchased this laser. It is $70 cheaper than Jet Lasers PL-E mini 500mW 532nm green laser and has better specs. I know the build quality will be lower, but it claims to...

O-Like.com sells cheapest tem00 500mw DPSS laser I know of and that is for $179. Also, laserpointerstore.com sells the cheapest 1w green diode laser I know of at $200. I have bought lasers from both these stores and they tend not to false advertise. The quality of Sanwu lasers and Jet Lasers...

I own quite a few laser pointers and I have been using three different ones for astronomy. For alignment, I am currently using the $20 Laserland 510nm diode (pen style) laser. It works in the cold and is bright enough for telescope alignment purposes. I also have the pocket Sanwu 520nm 50mw...

I have this laser pointer pen from Laserland and their larger 520nm laserland pointer which I pot modded. These are not illegal as they are set to 5mw (not all Chinese lasers are illegal imports). I use the smaller pen style laser on my telescope and it works well in the cold (you might have to...

My first HeNe laser I owned was in my Laser Disc player. This was one of the first consumer electronics use of a laser. This was back in the 1980's. The HeNe lasers were quickly replaced with laser diodes a few years later. One of the reasons the HeNe laser's prices dropped was the consumer use...

I have been investigating holography using cheap diode lasers and have been surprised to find that some people have achieved coherence length that exceed many HeNe lasers (for example lengths greater than their optical tables). The problem seems there is a lot of hit and miss with these diodes...

Hi everyone, been browsing LPF for awhile now. I have made an account awhile back too, but finally got up the nerve to introduce myself! I have been interested in lasers since I wrote a 200 page essay on lasers back when I was 13 years old (44 years ago and the laser was only 13years old). I am...