~650mW 638 and 1.5W 445? How much?

[edison]

Simplicity is the key, so passive cooling and I'm not after super pencil beams, although some anamorphic correction on the blue might be good.

My modules have tec cooling , overheatings protection, beamsupression so not what your looking for i guess. So my advice would be build it yourself or maybe a Pl member that can build you a nice setup. Second mitsubishi multimodes are not exactly my thing. I can build one easily but will not be very much cheaper then single diodes. More optics and time will even it out. You get more power like a nice 1 watt when doing P73,s. I will build an RB module in a few weeks in the same housing as in the picture just for fun Build 1 before (Rizard has an RB module with 300mw red and 1 watt blue

[White-Light]

Kvant use a quad for their 637nm. Thats all I can tell you as the diodes are unknown to me however at 680mw / 4 the maths isn't hard to do to work out the individual output level which might give some clue as to the diodes. Only bad thing with Kvant is they don't use correction optics so far as I can see. Edison seems to have tamed his nicely.

[norty303]

The Kvant doesn't need the correction optics Al, as the diodes are single mode. I have the 1W 6 diode unit.
But I don't want the complexity of a 4 diode module.

Edison, could you build a RB module using the M140 diode and doing over 1W at 445 and ~650 of red?

[WookieBoy]

Interesting thread Norty... seems we both have a similar winter project in mind

I'm in the early stages of case design at the mo and was looking at Edison's modules or cni/laserwave modules for the sources rather than going down the complete DIY route as I don't really feel confident enough to get right down and dirty with the diodes yet...
However, if there's a good (read relatively simple) red & blue solution to go with 1.5-2W of green, then i'm definately interested to find out what it would be...

Again passive cooling (heat transfered to baseplate) is the way I'd prefer to go... so I was assuming tecs etc?

[norty303]

The problem with tecs is that they introduce more heat into the system than without. I rely on good thermal transfer to the baseplate, and then heat sinks on the underside in the cooling air flow of fans to take the warm air away. I don't need outright power, so can get away with it. You are looking for a bit more so may need it, but then a beefier cooling rig.

[DTR]

The wavelength on the P73 and G71 diodes from what I have seen is very sensitive to temperature compared to the 445 or other diodes I have used and a TEC cooled rig I would think would be a big advantage.

[White-Light]

The Kvant doesn't need the correction optics Al, as the diodes are single mode. I have the 1W 6 diode unit.
But I don't want the complexity of a 4 diode module.

I have trouble getting it on the mirrors wihtout either spillage or bleed as its 4 separate beams that form a square and only diverge outside of the projector:



Anyway, I diverge. Obviously not suitable for your reqirements if you're looking dual.

[logsquared]

I've built several different modules with the P71. Here is some basic stuff: I measure and record almost everything I test. So, If you have a question specific to a lens set-up or something I can prolly give you the test data.

I am just starting to work with the P73. I can tell you the P71 has about an %80 smaller emitter over the P73. But the P73 seems to really put out 1W without struggling.

For reference I have run 3 P71's at 650 mA for over 500 hrs with only %5 degradation. No tec. 500mW after optics

I know you said you don't want the complexity of a multi single mode setup. However, I will tell you for sure the correction optics are a bitch with more than one P71-73.

IMHO, If you want easy power go with 1 P73 + telescope and 5mm aperture mirrors. you should get about 1.3 to 1.4 mRad.

My fav. new way to correct the P diodes is one positive cylinder ~250-300 mm away from the diode. Makes life a lot easier.

Check out this album for a P71 plus m140 RB http://s161.photobucket.com/albums/t...ed/RB%20Laser/

I will try to post a picture tomorrow of the single cyl correction.

I am back in the shop for the winter so if you want I can knock something up for you. My builds are more "utilitarian" than kvant or edison. http://s161.photobucket.com/albums/t.../quad%20445nm/

I am sure Andy can make something cool too. Probably save on shipping as well.

[andyf97]

I have trouble getting it on the mirrors wihtout either spillage or bleed as its 4 separate beams that form a square and only diverge outside of the projector:

"And only diverge outside of the projector", You mean Converge. The beams are always diverging; right from the start.

[edison]

Where it comes down too is budget and quality. I wanted a 1 watt red 2 years ago and i hardly couldn,t afford it. I settled with a 670 mw. The brightness of 640nm (not 637) blew me away. I had allignment problems so i had that one serviced by Kvant. Very anoying but it was still under warrenty. So i shipped that one back and they repaired it. It depends on how much the importance is of the service etc. What i,m trying to say with this is that when you want something you have to decide weither you want to have service or once in a while need to do some reallignment , replace a diode (if its broken) or something else. If you use your projector only for fun and hobby stick with a project build by yourself or someone here on PL. If you use your projector professionally then having a company behind you that takes care of all your modules is a must. I give 1 year warrenty and 2 years of service etc but yes the price is different but you get more for this then only a module.