any suggestions how to build a 600mw 640nm module with a 3mm beam diameter?
/martin
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any suggestions how to build a 600mw 640nm module with a 3mm beam diameter?
/martin
do you have lots of money or not so much "lots of money" ???
the expesnsive way is a quad opnext 63133 with a pbs and waveplate and short fl lens
the not so expensive way is to wait and see what will come out of the whole mitsubishi mgldhudfu71 diode, where you will be able to do the trick with 1/3 of the cash and just two diodes
What divergence do you need? The opnext has the edge on beam quality over the mitsu '71 diodes. But, as LaNeK said, the price is much higher. I have been using a dual mitsu '71 in my projector for about 2 months and I can say, most wouldn't notice the slight difference in beam quality.Quote:
Originally Posted by teknofon
What are you using for blue?
what's a mgldhudfu71 diode?
i want something that's single mode
right now i have a sucky 445 from snoc that i'm going to add some prisms to
See this post: http://www.photonlexicon.com/forums/...lashlight-FailQuote:
Originally Posted by teknofon
Then opnext diodes is what you want.Quote:
Originally Posted by teknofon
If you have a 445 multimode diode then what's the problem combining it with a multimode red? Just curious.Quote:
Originally Posted by teknofon
the thing with the 650 and 635nm multimode diodes is that if i want to keep the divergence down the beam is going to be to fat
to fit my dt40 wide scanners,
i rather have something that matches the green then the blue
and i'm used to the beam specs of my Ar/Kr :)
LOL .., ahem, .. I mean.. good luck with that.. (using LDs) .. Anyway, the Opnext HL63133DG 638 nm 170 mW or the HL6385DG 642 nm 150 mW are both single mode I believe. The preference from what I've read is the 63133 for good beam specs after collimation and correction optics. I believe they run somewhere between 100-160 usd ea, and are presently available for purchase.Quote:
Originally Posted by teknofon
life is hard when you have gotten used to gas lasers and have to use diodes :D
i rather pay 400 bucks for a 600mw beam that fits the mirrors
then 200 for a 600mw beam that is four times my mirror size :)
but how do i combine 4 Opnext HL63133DG?
can i knife edge them together like this ::
and get a 3x3mm beam?
or is my hopes to high?
I think you want to knife edge like this: ll and ll through a PBS with waveplate or ll and = with no waveplate.
Quote:
Originally Posted by teknofon
the diodes only should cost you around 480 usd if you are lucky, probably more. then, you need another 80 for lenses, diode mounts, lens barrels, around 50-90 for a decent low loss pbs and i don't know how much for the waveplate. You also need two mirrors for red and three mounts (2 for mirrors and one for pbs), diode driver, metal parts etc all these should easily cost more than 850usd. maybe reconsider on the single mode?
other than that, the best configuration for a 3mm beam without using telecopics, is what logsquared suggests.
one example of this implementation (a rough one, as i prefer it) can be seen here
http://img268.imageshack.us/img268/1...305451copy.jpg
this would work then http://www.microlaserlabs.com/produc...ombiner-elite/
if laserman532 gets it back in stock :)
do i need to add a waveplate if i use Opnext HL63133DG diodes, can't i just turn the diodes 90deg?
355 + 480 + driver cost... it is not cheap...
while if you settle for a 4mm beam, it should cost you less than 450 alltogether, if you go for logsquared's kit, and you'll probably end up with around 800mw of 640nm
concerning the waveplate, i prefer to use it as it makes the overall build and design much simpler (no need for elevation of diodes, no rotation, no "strange" gluing of mirrors etc etc), just my personnal preference
You can turn the diodes 90deg. However, knife edge stacking "under over" is a little bit trickier. I don't think the laserman kit allows for "under over" without shimming the mounts.Quote:
Originally Posted by teknofon
edit: we must have posted at the same time:)
logsquared what would a complete and assembled module cost from you?
Gettin there!Attachment 29228
I have two of the baseplates all drilled an tapped from Microlaserlabs if interested, I think he has the mirror mount and diode holders in stock.Quote:
Originally Posted by teknofon
I bought two complete quads a while back but ended up using the other parts on systems and not the base.
Larry
That's cute! :)Quote:
Originally Posted by logsquared
Cute? Lasers are cool, techy, freaky, awesome, bizarre, anything but definitely not "cute" lol. :p
i think it's cute :p
lol
_____________
It's getting cuter! Had some more time to work on this quad tonight. Everything is working out pretty good. I laid it out for a 10mm cube and only have a 12.5 here. Still worked out though. I forgot how much the under over alignment is a PITA. Putting the "under knife" mirror on the 45 deg mount makes it a bit easier because the mirror can rotate and kinda "karate chop" the beam up and down. I am having a lot of fun on this build... making the case "billet" is fun and looks "cute" too.
Attachment 29331Attachment 29332
Lookin good LS. Qute. Do you think that it would work with the new mitsu 500mw P73 LDs?
Thanks. Not enough room inside for the correction optics.Quote:
Originally Posted by steve-o
Ok, oops wrong thread, I'll go over to the "grail" thread and ask you there about your setup over there .:beer:
Oops again, I meant your modules that you're building for the G71 diode thread , damn gotta quit posting late after toddy-time .. *DZ :drink:
Logsquared, Those mirror mounts look interesting, never seen them anywhere else. Where can i get them? *retardo
I build them in my shop. They're pretty simple. The way they work is unique (I think). Basically, they have 4 "pusher" adjuster screws around a central pivot screw. The pivot screw goes through a stainless bearing with a tapered front. The central screw is a flexure and pivot point. To use them first back off the "pusher" screws and use the pivot to adjust the Y position and rotate the base for X position until the alignment is as close as possible. Then use the pusher screws to fine adjust. They are very stable to vibration and temperature because the mirror holder rests on 4 points and the tension in the system is not real high. I could knock I few out for you. How many do you need?Quote:
Originally Posted by DjMagnus