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Old 06-15-2008, 08:56 AM #17
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Default Re: "Super"cooling a laser?

Yeah i know what you mean, I am really happy, even if the testing achieves nothing, that I finally found an activity in which I can use my old cooling systems


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Old 06-15-2008, 06:32 PM #18
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Default Re: "Super"cooling a laser?

Quote:
Originally Posted by brtaman
Thanks for the info flogged, I was sure that the diode had turned orange but could not confirm, it was the base 5mw within the aizix module (just with focused line), I am going to try with the burner diode, but am waiting to recieve/order glasses because 200ish mW pumped into a small room with white walls is not something I wish on my eyes.

With your calculations, and the ~-50C the cooling system pumps out I should get -10nm from the diode (going by the 2nm change per degree and from 0C, if ambient at 20C is meant, then in theory -14nm in the wavelenght? Cant wait to see what comes out of this.

BTW flogged where do you live, -20 outside? even at night brrrrr


Hehe amk, yes I hold a world record (a measly one though :P) for a specific CPU core not the general OC WR, I got a 3000+ athlon 64 (754 pin), from 2.0-3.3, not that hard though, I was kind of waiting for someone to challange me before pushing it (then i killed the cpu...), but everyone was busy with the 939 pin version at the time, so it has stayed and will stay i guess :P, but its still cool to say that I have a WR in something hehehe

My OC name was ZIZI, here is a link to my lowly achievement. the one posted is only 3.2 IIRC (no one challanged nad i lost the link to the CPU-Z confirmation for the 3.34 one), these old athlons were pretty stuburn to push compared to Intels of then and now though, but great fun and had amazing memory latency.

http://www.xtremesystems.org/forums/...ad.php?t=59753 its the single core 3000+ Venice 754 (they werent too easy to overclock).

Good to see a fellow overclocker on these board (nice overclock though which core) (though its not too surprising, tech related things seem to interest all oc'ers :P), though my OCing days are pretty much over as I cant find the time, and those tests and processes took up ALOT of my time.


Thanks
brtaman

sorry for threadjack,


I specifically bought my CPU because I heard it was a good overclocker. it is the E7200 Wolfdale 45nm COre2 duo from intel.

I like the CPU because it doesn't give off much heat, and so is and easy overclock. I have hooked up to watercooling, so I should be fine. I once was a GPU overclocking fan, but after killing a board, and some other things I stopped.


lol, nice to have met you (online at least),

amk

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Old 06-15-2008, 06:33 PM #19
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Default Re: "Super"cooling a laser?

off topic but at what voltage would i run these at
http://www.sureelectronics.net/goods.php?id=373
Can i do it strait off batteries or do i need a current regulator.What current is needed for them.
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Old 06-15-2008, 06:39 PM #20
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Default Re: "Super"cooling a laser?

Quote:
Originally Posted by jamilm9
off topic but at what voltage would i run these at
http://www.sureelectronics.net/goods.php?id=373
Can i do it strait off batteries or do i need a current regulator.What current is needed for them.

**hint #1**

136.8W TEC Thermoelectric Cooler Peltier 12V, 2pcs

**hint #2**

. . . even for your own custom car drink warmer/cooler (power from cigarette lighter).

Peace,
dave
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Old 06-15-2008, 06:55 PM #21
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Default Re: "Super"cooling a laser?

about current.
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Old 06-15-2008, 07:02 PM #22
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Default Re: "Super"cooling a laser?

Quote:
Originally Posted by daguin
[quote author=jamilm9 link=1213341465/12#18 date=1213554781]off topic but at what voltage would i run these at
http://www.sureelectronics.net/goods.php?id=373
Can i do it strait off batteries or do i need a current regulator.What current is needed for them.

**hint #1**

136.8W TEC Thermoelectric Cooler Peltier 12V, 2pcs

**hint #2**

. . . even for your own custom car drink warmer/cooler (power from cigarette lighter).

Peace,
dave[/quote]

Usually it is written on the peltier itself what voltage it requires, as far as current mine pulls up to 6 amps @12v so a car battery is a must ;D

Peltier coolers are not very efficient, they are just quiet
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Old 06-15-2008, 07:19 PM #23
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Default Re: "Super"cooling a laser?

Quote:
Originally Posted by amkdeath
[quote author=brtaman link=1213341465/0#8 date=1213478928]Thanks for the info flogged, I was sure that the diode had turned orange but could not confirm, it was the base 5mw within the aizix module (just with focused line), I am going to try with the burner diode, but am waiting to recieve/order glasses because 200ish mW pumped into a small room with white walls is not something I wish on my eyes.

With your calculations, and the ~-50C the cooling system pumps out I should get -10nm from the diode (going by the 2nm change per degree and from 0C, if ambient at 20C is meant, then in theory -14nm in the wavelenght? Cant wait to see what comes out of this.

BTW flogged where do you live, -20 outside? even at night brrrrr


Hehe amk, yes I hold a world record (a measly one though :P) for a specific CPU core not the general OC WR, I got a 3000+ athlon 64 (754 pin), from 2.0-3.3, not that hard though, I was kind of waiting for someone to challange me before pushing it (then i killed the cpu...), but everyone was busy with the 939 pin version at the time, so it has stayed and will stay i guess :P, but its still cool to say that I have a WR in something hehehe

My OC name was ZIZI, here is a link to my lowly achievement. the one posted is only 3.2 IIRC (no one challanged nad i lost the link to the CPU-Z confirmation for the 3.34 one), these old athlons were pretty stuburn to push compared to Intels of then and now though, but great fun and had amazing memory latency.

http://www.xtremesystems.org/forums/...ad.php?t=59753 its the single core 3000+ Venice 754 (they werent too easy to overclock).

Good to see a fellow overclocker on these board (nice overclock though which core) (though its not too surprising, tech related things seem to interest all oc'ers :P), though my OCing days are pretty much over as I cant find the time, and those tests and processes took up ALOT of my time.


Thanks
brtaman

sorry for threadjack,


I specifically bought my CPU because I heard it was a good overclocker. it is the E7200 Wolfdale 45nm COre2 duo from intel.

I like the CPU because it doesn't give off much heat, and so is and easy overclock. I have hooked up to watercooling, so I should be fine. I once was a GPU overclocking fan, but after killing a board, and some other things I stopped.


lol, nice to have met you (online at least),

amk

</threadjack>[/quote]

Not a problem whatsoever!!! Nice to have met you as well, its always cool to meet a fellow OC/laser enthusiast!


thanks
brtaman
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Old 06-15-2008, 08:11 PM #24
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Default Re: "Super"cooling a laser?

I have my q6600 overclocked from 2.4 to 3.4


BTW, i'm really curious to see how this cooling system will turn out with other diodes.
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Old 06-15-2008, 10:10 PM #25
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Default Re: "Super"cooling a laser?

Quote:
Originally Posted by Jimmymcjimthejim
Those are some interesting results...
I never knew that cooling a laser diode will increase the frequency of the light (in nanometers).
Lawl, someone forgot to tell me we now measure frequency in nanometers.

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Old 06-16-2008, 06:42 AM #26
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Default Re: "Super"cooling a laser?

Thanks for the interest guys! I am going out of town for a couple of days (back wed/thurs), I was looking through the forum and saw some beam shots of a 635nm laser, from the picture it looks o be exactly what I am getting, which leads me to believe that I am using or/have 650 nm LD's....?

I am going to try and get myself some good/cheap (emphasis on cheap :P), 635ish LD diodes and continue testing from there.

On a side note my compresor system seems to have lost preassure over the years or two of storage, I am therefore searching for someone with r-402a to refill it for me, which is a PIA...but hopefully someone will turn up, already called a couple of refrigeration services and it was not fun trying to explain to them what I need the gas for...some dude thought I was pranking another one almost busted a gut only to tell me that he doesnt do r-402a???(BS on his side???)

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Old 06-17-2008, 03:12 AM #27
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Default Re: "Super"cooling a laser?

Do you have a refrigeration manifold, or know someone who can re-tune the phase change cooler ?

You will get major flood-back which can damage the compresor as you aren't putting enough heat into the evaporator.

Edit: Just read the whole thread. You might try taking it down to them and talking to them in person - Easy to see that it isn't a prank that way.
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Old 06-17-2008, 08:06 PM #28
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Default Re: "Super"cooling a laser?

Quote:
Originally Posted by Cyparagon
[quote author=Jimmymcjimthejim link=1213341465/0#9 date=1213489491]Those are some interesting results...
I never knew that cooling a laser diode will increase the frequency of the light (in nanometers).
Lawl, someone forgot to tell me we now measure frequency in nanometers.

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Old 06-22-2008, 11:06 PM #29
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Default Re: "Super"cooling a laser?

Hey guys,

I've been super busy with work the past few days...:I

So just a quick update on my "project", I have not had success in supercooling the 650nm diodes to the point where they emit in the orange specter. Based on the info you provided me in this thread I would need to go alot colder to get the diodes to go orange.

That is why I am on a hunt for a good (but cheap ) 635 diode. I believe that I would be successful with this diode? (hope)

Do any of you know a member and/or good vendor, from whom I would be able to purchase a 635, in the 15-20mw range, IgorT already provided me with a link of an Austrian company, I am just looking for alternatives, if none show I will buy from them and continue with the testing.

After running the system with a load I found that it had not lost its contents, as a distinct woosh sound was coming from the evaporator (a good thing), so that part is taken care of atleast for now.


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Old 06-22-2008, 11:17 PM #30
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Default Re: "Super"cooling a laser?

635nm isn't real common, u can get them on ebay sometimes
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Old 06-23-2008, 12:10 AM #31
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Default Re: "Super"cooling a laser?

We measure wavelength in meters, mM, nM.
Frequency is typically in Hertz etc which is time based.

Hurts - Donut ;D

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Old 06-29-2008, 02:16 AM #32
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Default Re: "Super"cooling a laser?

I noticed a long time ago that people who like lasers often also have other hobbies in common. The most frequent ones i notice are rc helis and overclocking I have a honeybee cp that doesn't get used too often, and my e6750 has been clocked to 3.8 from 2.6 on air.
I think the common theme here is hobbies that involve a lot of fiddling and tweaking for very little actual use.
We just like messing round with complicated stuff and pushing our limits.
Oh and very impressive with the athlon 3000, i had a 3200 venice that hardly wanted to go over 2.6 :-[
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