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Well I finally decided it was time to join your fine forum, I have lurked on and off for a while now but more recently I just felt the urge to show off my projects to people that actually care ;D
That said, I got hooked with lasers in about '06 when I interned at a local telecom company (formerly known as bell labs, lucent, agear, and ortel, now known as emcore, and by the looks of their stock by june when I go back it will be something new) and was working in a lab doing a lot of work with lasers (not necessarily related to telecom, but still we had $2000 780nm laser diodes hooked up and beams running around) and since have been building up a collection of 1064nm pulsed lasers, a 2100nm Holmium:YAG medical laser, a few hundred watts of 808nm bars, and a few nice visible lasers, which is what this post will focus on.
Just about 2 years ago i got the idea to mix a 532nm module with a 650nm diode using the turning mirror out of a dvd-r drive, and got a reasonably well coliminated orange or yellow beam, which worked just well enough to spark my interests in mixed lasers. It was also right about then that those first ps3 sleds were avaible on ebay (a mere $80 for a whopping 10mw of 405nm!) so I took the chance to complete it into a RGV (or RGB if you shine it on a fluorescing target, which with 10mw of 405nm that was all it was good for). But I had a number of issues relating to alignment, the aluminum plate I was using was just to thin to keep the tolerances I wanted. So thus was born the RGV v3But I can't post a picture of it since you guys don't seem to like newcomers ;-) Now that I managed to waste enough time to get my 10 posts in behold:
RGB Rev 3
sorry the render isn't quite updated, that was a slightly outdated render but you get the idea
click for a larger image
Also check out http://krazerlasers.com/images/RGB for some pictures of the new system, http://4hv.org/e107_plugins/forum/forum_viewtopic.php?22477.post for some information on the previous builds, and my website http://krazerlasers.com/lasers/ for more formal pages for rev 1 and 2 and solidworks renders of the rev 3 laser.
In any case, it started out as some aluminum scrap I found at the UCSB junk pile, which I machined into 6oz of pure awesome. As soon as get through finals week I am headed home to add in the guts (50+mw ledshoppe green laser pointer module, 150ish mw 650nm red diode, and a 100iish mw 803t diode, and dicros extracted out of dvd and blu-ray drives) and align the beast. I am hoping for 1/3w of ballanced white, and one of these days I will get around to making an analog supply for the diodes to get a full color laser. I am adding power sense photodiodes in the head so that I can eventually run the system closed loop (although I worry that I am going to run into issues with the green doing unfun things, we will see).
But since it isn't a laser till it emits coherent light I used some sillyputty (yeah being stuck in a dorm sucks) to hold in the module out of a ledshooppe 50mw pointer, in and at least get a 1 color laser working for you guys. I didn't get a chance to measure the exact power, but I measured the module at 350ma putting out 65mw, and with the boards pot turned up to 90% it was drawing about 450ma and looked about twice as bright as an unmodified module, which would imply a ton of frickin power. There are pictures at the krazerlasers.com/images/RGB address of the beam (that shot was taken in broad daylight) and of it being focused down onto a black crock clip burning up a storm. Not bad for a $25 laser :-o
BTW, the laser is 2.5" by 2.5" by 1" not including the mounting feet or db9 connector. it fits quite nicely in the palm of your hand
Cheers guys!
Well I finally decided it was time to join your fine forum, I have lurked on and off for a while now but more recently I just felt the urge to show off my projects to people that actually care ;D
That said, I got hooked with lasers in about '06 when I interned at a local telecom company (formerly known as bell labs, lucent, agear, and ortel, now known as emcore, and by the looks of their stock by june when I go back it will be something new) and was working in a lab doing a lot of work with lasers (not necessarily related to telecom, but still we had $2000 780nm laser diodes hooked up and beams running around) and since have been building up a collection of 1064nm pulsed lasers, a 2100nm Holmium:YAG medical laser, a few hundred watts of 808nm bars, and a few nice visible lasers, which is what this post will focus on.
Just about 2 years ago i got the idea to mix a 532nm module with a 650nm diode using the turning mirror out of a dvd-r drive, and got a reasonably well coliminated orange or yellow beam, which worked just well enough to spark my interests in mixed lasers. It was also right about then that those first ps3 sleds were avaible on ebay (a mere $80 for a whopping 10mw of 405nm!) so I took the chance to complete it into a RGV (or RGB if you shine it on a fluorescing target, which with 10mw of 405nm that was all it was good for). But I had a number of issues relating to alignment, the aluminum plate I was using was just to thin to keep the tolerances I wanted. So thus was born the RGV v3
RGB Rev 3
sorry the render isn't quite updated, that was a slightly outdated render but you get the idea
click for a larger image
Also check out http://krazerlasers.com/images/RGB for some pictures of the new system, http://4hv.org/e107_plugins/forum/forum_viewtopic.php?22477.post for some information on the previous builds, and my website http://krazerlasers.com/lasers/ for more formal pages for rev 1 and 2 and solidworks renders of the rev 3 laser.
In any case, it started out as some aluminum scrap I found at the UCSB junk pile, which I machined into 6oz of pure awesome. As soon as get through finals week I am headed home to add in the guts (50+mw ledshoppe green laser pointer module, 150ish mw 650nm red diode, and a 100iish mw 803t diode, and dicros extracted out of dvd and blu-ray drives) and align the beast. I am hoping for 1/3w of ballanced white, and one of these days I will get around to making an analog supply for the diodes to get a full color laser. I am adding power sense photodiodes in the head so that I can eventually run the system closed loop (although I worry that I am going to run into issues with the green doing unfun things, we will see).
But since it isn't a laser till it emits coherent light I used some sillyputty (yeah being stuck in a dorm sucks) to hold in the module out of a ledshooppe 50mw pointer, in and at least get a 1 color laser working for you guys. I didn't get a chance to measure the exact power, but I measured the module at 350ma putting out 65mw, and with the boards pot turned up to 90% it was drawing about 450ma and looked about twice as bright as an unmodified module, which would imply a ton of frickin power. There are pictures at the krazerlasers.com/images/RGB address of the beam (that shot was taken in broad daylight) and of it being focused down onto a black crock clip burning up a storm. Not bad for a $25 laser :-o
BTW, the laser is 2.5" by 2.5" by 1" not including the mounting feet or db9 connector. it fits quite nicely in the palm of your hand
Cheers guys!
