6x 405nm diode testing

[swamidog]

that's a good point on the lasorb vs. aixiz module. i had to hang mine lasorbs outside the modwerx heatsinks i'm using so they're a little farther from the diode than recommended (maybe an inch and a half from the diode), but i assumed that's still better than no lasorb.

i think a single flexmod would be fine. as long as the combined draw doesn't exceed the max output of the driver.

yes this size can only hold one flexmod, space for 2 x 2" TEC on back shouldnt need more than that. Using the entire aixiz module is no longer being done due to everyone using lasorb...it dosnt fit in the module.

I can make i bit biggger for two flexmods, this is very small, it could be made bigger and still be small

[Laserman532]

that's a good point on the lasorb vs. aixiz module. i had to hang mine lasorbs outside the modwerx heatsinks i'm using so they're a little farther from the diode than recommended (maybe an inch and a half from the diode), but i assumed that's still better than no lasorb.

i think a single flexmod would be fine. as long as the combined draw doesn't exceed the max output of the driver.

I think the current thought is...if it is cheaper to replace the driver than the diode (more exotic expensive diodes) provide a separate driver for each diode. If you are running two blue rays or two cheaper red diodes...drive them both with one driver.

I made the clamshell mount the way I did so that the lasorbs can be right at the back of the diode which is the manufacturers suggested operational method.

[andy_con]

very nice, the only thing i will say is for a dual diode setup its still a little on the large side.

I just thought I would toss this one in there for now.

Dis-claimer - banged together in one day.

One of the aixiz module holders is the clamshell type the other is a set screw type.

ALL of my new beam combiners will be the clamshell type. The diode (aixiz diode holder) is isolated from the mount by the thin transistor Sil-Pad material that also serves as a heat transfer and electrical isolation.

The clamshell design allows for you to install diode in aixiz mount and install aixiz in clamshell. you are able to rotate the module in the mount for polarization.


In this design the beam shoots trought the MM-1 (PBS cube not shown but it fits in there)

2.5" high 2.25"wide 1.75" thick room on the back for mounting a 2" x 2" TEC if you should so desire.

This mount offers the full freedom of movements required for optimal performance.

EDIT- That is a quarter not a half dollar

[Laserman532]

I would be interested in seeing a smaller setup for combining two LD's using commercially available assemblies (the majority of the builds on PL) aixiz modules, pbs cubes and mm-1's. I don't see how to get them much smaller.

One quickly runs into the mechanical constraints of actually holding the devices in question as well as performing thermal and isolation requirements less on the ability to adjust all of the variables for optimum performance.

I do not dis-agree that one can build smaller combiners commercially (ie chinese systems) in a labitory environment with specialized equipment to hold the various devices in place while curing the glues.

Please post some pictures of smaller devices, may be I have missed them.

[andy_con]

with the way we build our setups we can easily do smaller

http://www.photonlexicon.com/forums/...ht=quad&page=4

although im yet to build a quad i have done some measuring and i reacon i could get a quad setup on 60x60.

my duals are half the size of yours duals so building a quad shouldnt be an issue

[Laserman532]

with the way we build our setups we can easily do smaller

http://www.photonlexicon.com/forums/...ht=quad&page=4

although im yet to build a quad i have done some measuring and i reacon i could get a quad setup on 60x60.

my duals are half the size of yours duals so building a quad shouldnt be an issue

I have seen SBk' quad but i havent seen yours. As far as your contribution to the "we" in your statement, I am not sure how you fit into that picture, unless you are using "we" as in "us over here on the other side of the pond".

I did not see any pictures of your duals. Yes if one makes smaller mechanics it naturally goes that one can build smaller devices that was never the point. The point was adjust ability.

if you use an aixiz module you can only make a mount so small that will hold them (whether it is one or two, whether it is clamp or epoxy). If one makes his own adjustable mount (as opposed to a mm-1 for example) the device can shrink. Stability, adjust ability and pointing accuracy would still need to be evaluated.

The size of your PBS and Routing mirrors are the only variable left to size. If your beam overfills the PBS (as in the sleds) then your beam characteristics fail.

Why are you being so defensive when I made a valid comment on a device which isnt even yours. You asked me to show you one...so I did.

Please post a pic of your dual so I might get a comparason of size instead of reterioc.

[andy_con]

im not getting defensive at all, i said yours was a nice build. i was merely pointing out that you dont like the way we (me, simon and dave) do it and i dont like the way you do it. you do indeed have a valid point but i personally dont find it an issue.


i also wasnt talking about sbk build, i was talking about daves post, who has also adopted simons method.

as ive said ive not built a quad yet, only cos i dont have a need for one. but i will be building one shortly.

as for the mirror mounts, subject to your build ability and quality you dont need mega adjustable mounts. just some fine adjustments.

[shrad]

a friend on laserfreak has built a magnificent dual, smaller than a packet of cigarettes

you can see it in this thread, with a 50mW laserworld green for size comparison: http://www.laserfreak.net/forum/view...2355&start=675

he also made his own scanners and scanner amps, 20Kpps, and he is designing really small scanners now which should surpass the first ones

btw, that's for an example of what is done on laserfreak, I'm not trying to say it is superior

I plan on buying a dual kit from you Pat, but would you happen to have some mounts suitable for the o-like diode mounts? I'd also be interested in mounting two flexmods, as the diodes are opnext 150mW 642nm ones and I don't want a chain reaction ^^

[Laserman532]

im not getting defensive at all, i said yours was a nice build. i was merely pointing out that you dont like the way we (me, simon and dave) do it and i dont like the way you do it. you do indeed have a valid point but i personally dont find it an issue.


i also wasnt talking about sbk build, i was talking about daves post, who has also adopted simons method.

as ive said ive not built a quad yet, only cos i dont have a need for one. but i will be building one shortly.

as for the mirror mounts, subject to your build ability and quality you dont need mega adjustable mounts. just some fine adjustments.

that appears to be about 2.5" x 1.5" and a 10mm cube . i am assuming.

have you found "your adjustable mirror mounts" pointing accuracy and stability acceptable? Size is a mute point if it dosnt stay in alignment.

I noticed also that SBK after adjusting the device, glued all of the points. Not being negative here but it sort of defeats the purpose of making it adjustable. Did he discover a drifting problem in "his adjustable mounts" and solve it by gluing the parts? (honest question)

I await Daves completion which seems to be a great combination of all worlds (with exception of the epoxy IMHO) "his brass mounts" offer many advantages (MTBF of brass & flexibility) over the alluminum "flex mounts".

Instead of taking it so personally of "you" dont like "ours" or "we" dont like "yours". My origional post criticized the method not the builder.

The fact is that the "epoxy method" removes one "degree of freedom" (engineering term) for device optimazation. The "clamp method" retreives it. The "set screw method" solves rotational ability but sacrafices thermal and Isolational capabilities.

At this point, the horse have been severly beaten to death and very dead.

[andy_con]

very nice looking lasers, probably the same size as my one pictured above