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Old 12-25-2008, 06:00 AM #1
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Default 480mW 652nm maXYZ modules

I have a like new 450mW set of maXYZ modules. These are some of the best red diode modules available. They are built with special Sony industrial diodes, not the cheap kind you find inside the DVD burners.

The diodes have a 55um emitter width. By comparison, the diodes found in the DVD burners are 130um and up meaning that the exit beam is much larger. The diodes are rated for CW at 265mW and are being run at 225mW each making a combine total of 463mW after optics. The beam is an amazing 1.5mm diameter with ~1mRad divergence. These are actual measurements, not specs.

This system also includes the latest analogue modulation circuit which is good for frequencies up to 100kHz. Much better then any other modulation circuit on the market.

They come mounted on a solid custom machined aluminum plate complete with MM1 mounts and a high quality Melles Griot Polarized Beam Splitter. This is a professional optic, not one of the cheap ones taken out of some old device. The cubes were custom made for these lasers with coatings designed for specifically 652nm so there is the least possible loss.

I am asking $700 for these as they retail $825 new. I will ship for free to the anywhere in the world.

PM me if you have any questions!


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Old 12-26-2008, 07:15 PM #2
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Default Re: 480mW 652nm maXYZ modules

These are good modules ! I've heard many good reviews about them on PL. is there a website for these ?

-Adam
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Old 12-26-2008, 10:32 PM #3
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Default Re: 480mW 652nm maXYZ modules

What was your website again?
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Old 12-27-2008, 11:48 PM #4
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Default Re: 480mW 652nm maXYZ modules

I don't think there is a website for these, but I have been wrong before!

Anyone who buys will get a power supply, free shipping, and another fun bonus...
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Old 12-29-2008, 06:25 PM #5
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Default Re: 480mW 652nm maXYZ modules

Bump !
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Old 12-29-2008, 09:53 PM #6
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Default Re: 480mW 652nm maXYZ modules

very nice setup here, i have seen these at the uk laser meet
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Old 12-29-2008, 11:26 PM #7
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Default Re: 480mW 652nm maXYZ modules

They are just homemade modules into a Ham radio dummy load. *I've got one here that I've gutted and will be making into a laser myself. *The mounting on the plate is nice as is the other optics and the driver and ttl is good. Donno if it's worth $700 though

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Old 12-30-2008, 04:18 AM #8
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Default Re: 480mW 652nm maXYZ modules

Kenom,

These are made by marconi (Chuck). He has been making these for many years now. They are about $130 in parts minus the diode. The diodes are not the cheap, low rated ones that come out of DVD drives. The drivers, which are analogue, are by far the best ones made. They have been tested to well over 100kHz, far past the limit of the diode. Every part on here is high quality and made for the task. Just in raw parts, these are $450 or so without diodes. There is also no better beam specs from any laser system of comparable power. Anyone who has used one of these knows how high quality these are. Even andy_con who makes tons of red lasers likes them!
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Old 12-30-2008, 11:30 AM #9
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Default Re: 480mW 652nm maXYZ modules

indeed as above, these arent your normal cheap dual dvd reds.
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Old 12-30-2008, 05:41 PM #10
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Default Re: 480mW 652nm maXYZ modules

I'm just stating what I see. *Those are dummy loads that have been modified for this purpose. *Believe what you will about the diode. *I know if given the right parts, I could make something similair with similair beam specs for cosiderably less.

Not to mention there has been documented clear issues with this particular module.. * http://www.photonlexicon.com/forums/...p;postcount=51

And have you tried the Flexmod, cause I know it's an awesome driver specifically designed for this purpose as well.
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Old 12-30-2008, 05:45 PM #11
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Default Re: 480mW 652nm maXYZ modules

&quot;KENOMETER&quot;
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Old 12-30-2008, 07:05 PM #12
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Default Re: 480mW 652nm maXYZ modules

Quote:
Originally Posted by Laser Ben
Kenom,

These are made by marconi (Chuck). He has been making these for many years now. They are about $130 in parts minus the diode. The diodes are not the cheap, low rated ones that come out of DVD drives. The drivers, which are analogue, are by far the best ones made. They have been tested to well over 100kHz, far past the limit of the diode. Every part on here is high quality and made for the task. Just in raw parts, these are $450 or so without diodes. There is also no better beam specs from any laser system of comparable power. Anyone who has used one of these knows how high quality these are. Even andy_con who makes tons of red lasers likes them!

I'm with Kenom. It does appear to be a high-quality red system, and if it is as good as it is hyped up to be it may be worth this much to someone, but it is hand made and I see no real justification for the cost. As Kenom said, with the right parts and knowledge, one could build it for themselves. I'm sure the driver is good, but 100kHz is nowhere near the &quot;limit of the diode&quot;. Laser diodes can be modulated into the MHz and even GHz range. Not to rain on anyone's parade, but given the price I believe it would be prudent for a would-be buyer to do a little research first.
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Old 12-30-2008, 07:11 PM #13
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Default Re: 480mW 652nm maXYZ modules

I like to point out how he claims to have the TTL version and yet he says he only had 1 hour on them. The TTL version has not been sold in over 2 years. This means he either bought them second hand, or he bought them and they sat around. Either way, the modules do not die, the diodes are not overdriven, and many of the facts that guy states. First off, the TTL circuits were completely isolated and you could connect 12 volts or more to them for extended times with no ill effects. Secondly, about the &quot;poor documentation&quot; there is great documentation that comes with the units, explains everything. I honestly do not think this guy has any clue what he is talking about and frankly, I would doubt that he even has a module from marconi.

On top of all that, I am giving these a month warranty.
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Old 12-30-2008, 08:07 PM #14
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Default Re: 480mW 652nm maXYZ modules

Quote:
Originally Posted by ElektroFreak
[quote author=Laser Ben link=1230188416/0#7 date=1230614297]Kenom,

These are made by marconi (Chuck). He has been making these for many years now. They are about $130 in parts minus the diode. The diodes are not the cheap, low rated ones that come out of DVD drives. The drivers, which are analogue, are by far the best ones made. They have been tested to well over 100kHz, far past the limit of the diode. Every part on here is high quality and made for the task. Just in raw parts, these are $450 or so without diodes. There is also no better beam specs from any laser system of comparable power. Anyone who has used one of these knows how high quality these are. Even andy_con who makes tons of red lasers likes them!

I'm with Kenom. It does appear to be a high-quality red system, and if it is as good as it is hyped up to be it may be worth this much to someone, but it is hand made and I see no real justification for the cost. As Kenom said, with the right parts and knowledge, one could build it for themselves. I'm sure the driver is good, but 100kHz is nowhere near the &quot;limit of the diode&quot;. Laser diodes can be modulated into the MHz and even GHz range. Not to rain on anyone's parade, but given the price I believe it would be prudent for a would-be buyer to do a little research first.[/quote]


Diodes can be modulated to that level, not question, not these diodes and not any diode you would find in a DVD burner. There is a fall time for the diode, in order to have a relative square wave output from a square wave input, you need to have a lower frequency.

Ben
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Old 12-30-2008, 08:23 PM #15
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Default Re: 480mW 652nm maXYZ modules

I believe the &quot;fall time&quot; that you describe has more to do with capacitance in the modulation circuit than with the diodes. Nearly any single semiconductor diode can keep up with rapid voltage changes up into the MHz range at least. Obviously this is not the case with most ICs, the complex circuitry of which introduces a delay (or fall time, if you will). A single semiconductor diode element of any type should be able to respond directly in sync with any incoming signal up into MHz. I've used laser communication devices that transmit data at up to around 10 MHz data rate using standard run-of-the-mill diodes. The same can be accomplished with LEDs as well. To the best of my knowledge the modulation rate of laser diode systems is more dependent on modulation circuit design than on the diodes ability to react to the input. This is within reason, of course, since there is an extremely minute &quot;fall-time&quot; involved in the diode but this should still allow for MHz range operation. The highest frequency I've seen personally is about 10 MHz from a standard 670nm laser pointer diode.
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Old 12-30-2008, 08:50 PM #16
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Default Re: 480mW 652nm maXYZ modules

Quote:
Originally Posted by Laser Ben
Kenom,

These are made by marconi (Chuck). He has been making these for many years now. They are about $130 in parts minus the diode. The diodes are not the cheap, low rated ones that come out of DVD drives. The drivers, which are analogue, are by far the best ones made. They have been tested to well over 100kHz, far past the limit of the diode. Every part on here is high quality and made for the task. Just in raw parts, these are $450 or so without diodes. There is also no better beam specs from any laser system of comparable power. Anyone who has used one of these knows how high quality these are. Even andy_con who makes tons of red lasers likes them!
I'm confused now :-[
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