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Old 11-10-2015, 03:41 AM #1
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Default Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode?

The highest power 800-830nm IR single mode laser diode I can seem to find is 300-500mw, if I am to believe the sellers claims. Does anyone know if a 1 watt single mode IR laser diode exists at close to 800nm? Looking for something in the fifty dollar price range, I found one on ebay claiming to be 1 watt, but I can't get the diode manufactures info to confirm it, so won't buy it.


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Old 11-10-2015, 04:36 AM #2
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

Alaskan --have a look here: New 808nm 1W 5nm 9mm to 5 Near Infrared Laser Diode Single Transverse Mode | eBay New 808nm 1w +/-5nm 9mm TO-5 near-infrared laser diode Single transverse mode $36 each

Also here: http://www.ebay.com/itm/New-808nm-1w...3D291598474072 New 808nm 1w +/-5nm 9mm TO-5 near-infrared laser diode Fiber Compression

Last edited by Encap; 11-10-2015 at 04:39 AM.
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Old 11-10-2015, 04:38 AM #3
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

Hmm, I had a look but I can't find anything single mode at that power. Probably best to start going with single mode fiber at those kinds of powers. That'll get you a nice gaussian beam.

May I ask what you're trying to do?
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Old 11-10-2015, 04:39 AM #4
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

Thanks, but that's the one on ebay I found and can't get a manufacturers part number from them to confirm if it really is single mode or not. 1 watt seems like a lot for single mode, even if at 808nm. Although, there are some blue ray 405nm single mode diodes which can do close to that, or more, if you drive them hard. Edit: Heh, I had to come back to answer your question... but on second thought, I will PM the answer to you
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

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Old 11-10-2015, 04:48 AM #5
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

Quote:
Originally Posted by Encap View Post
Alaskan --have a look here: New 808nm 1W 5nm 9mm to 5 Near Infrared Laser Diode Single Transverse Mode | eBay New 808nm 1w +/-5nm 9mm TO-5 near-infrared laser diode Single transverse mode $36 each

Also here: New 808nm 1W 5nm 9mm to 5 Near Infrared Laser Diode Fiber Compression | eBay New 808nm 1w +/-5nm 9mm TO-5 near-infrared laser diode Fiber Compression
Wouldn't trust that first one to be single mode. Multimode with FAC might not be so bad though!

Quote:
Originally Posted by Alaskan View Post
Thanks, but that's the one on ebay I found and can't get a manufacturers part number from them to confirm if it really is single mode or not. 1 watt seems like a lot for single mode, even if at 808nm. Although, there are some blue ray 405nm single mode diodes which can do close to that, or more, if you drive them hard. Edit: Heh, I had to come back to answer your question... but on second thought, I will PM the answer to you
Answered
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405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
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450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
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633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



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Last edited by diachi; 11-10-2015 at 04:48 AM.
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Old 11-10-2015, 05:49 AM #6
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

These guys offer 800mW and 1W single mode 808nm C mount
Not sure what they cost however.
Single Mode Laser Diodes: eagleyard photonics
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Old 11-10-2015, 06:28 AM #7
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

Probably expensive, but I will check it out, thanks.

I found some 200mw 830nm single mode diodes with a 1 x 3 um emitter size for 39 dollars here: Laser Diode 200mW 830nm Single Mode Infrared SDL JDSU 5431 J1 54 00213 | eBay

If I expand the raw output of a diode with that small of an output emitter, I am figuring a 100mm diameter lens would produce some ultra low divergence to deliver several times more light at a great distance than a diode at the same power output and a 100um wide emitter when using that same amount of expansion. At least the 1um slow axis should be 10 times brighter due to 10X less divergence, true?
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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Old 04-05-2016, 09:18 AM #8
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

Hi Alaskan, where did you find a real single mode laser at 830nm with power 300-500mW? I've found only the Mitsubishi ML60171C, but it is only 260mW..
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Old 04-05-2016, 09:57 PM #9
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

Check with JunkTronix on ebay, I don't see it listed now, either that or the 200mw CW one he has listed could do 300+ mw. There was another seller on ebay too: Brand New 5 Mitsubishi 830nm 260mW 350mW Single Mode Laser Diode | eBay
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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Old 04-09-2016, 03:22 PM #10
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

I am looking ap single mode IR laser diode too. This seller offer 5X JDSU 830nm 200mW laser diode 54-00213 for 45$ on ebay. Link Model number indicates that it is working in single mode. Price is quite nice, but 5 diodes is too much for me.
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Old 04-09-2016, 04:21 PM #11
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Default Re: Where can I find a high power nfrared 808nm (up to 830nm) single mode laser diode

I believe he was selling just one of these diodes for close to 30 dollars before, guess they weren't moving. This seller shows the diodes in China, but when I ordered from him in the past they actually came from Israel and he isn't Chinese, he is Israeli.
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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