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Old 08-02-2017, 11:18 PM #593
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Default Re: 505nm and 480nm diode RESULTS

Alright this could be promising! Weird they didn't show current range either.. unless I missed it


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Old 08-02-2017, 11:55 PM #594
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by ZRaffleticket View Post
Good news everyone - the odicforce page lists a driver (the one I bought) that looks identical to the ebay listing. They say 3-5V input

Variable Boost Driver Board for 515nm and 520nm Green Laser Diodes - OdicForce

That looks identical to the one I have coming from China for $7.98. If it is the same one, it is far cheaper from the Chinese. I know BowtieGuy found a linear driver that is made for a case positive diode. I looked at it and it looks perfect for use with the case positive 505nm diodes.
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Old 08-03-2017, 05:56 AM #595
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by paul1598419 View Post
That looks identical to the one I have coming from China for $7.98. If it is the same one, it is far cheaper from the Chinese. I know BowtieGuy found a linear driver that is made for a case positive diode. I looked at it and it looks perfect for use with the case positive 505nm diodes.
Do you mind posting the link to this case positive linear driver, I could just change the batterie orientation of the build and use any driver with this 505 diode, as long as the host is the positive feed, Just like these 589 and 594 lasers, This always confuses me happy to admit, Even with the small RGB module I built with 3 Flexdrives, I wasn't sure if all the 5.6mm diodes were case neutral or not,
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Old 08-03-2017, 06:09 AM #596
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Default Re: 505nm and 480nm diode RESULTS

I don't have a link for it, but it is called a Blitz Linear Driver and is on Survival Laser's site. I think you can find it from that.

If not, PM BowtieGuy. He has the link to it.
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Old 08-03-2017, 09:56 AM #597
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Default Re: 505nm and 480nm diode RESULTS

Billy, here is the link to the driver that Paul mentioned, it's called the "Blitz-linear driver", it's available at Survival Laser.
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Old 08-03-2017, 10:54 AM #598
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Default Re: 505nm and 480nm diode RESULTS

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Originally Posted by paul1598419 View Post
@ SingleMode
Do you know which of the three iterations of the 505nm diode you got? They have a number micro-printed around the diode's window that can be read with some magnification. They all start with SB.....
Depending on the one you got, it could be closer to 503nm or 510nm. That could make a difference if you are trying to get a specific WL out of it.
I got the ones, that are closer to 503nm
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Old 08-03-2017, 11:53 AM #599
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Default Re: 505nm and 480nm diode RESULTS

Cool thanks guys I know the blitz they have been around for ages, Ok all good!
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Old 08-03-2017, 05:56 PM #600
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by Singlemode Laser View Post
I got the ones, that are closer to 503nm
Another reason I asked is that of the two that are ~503nm depending on which you have, the pin out is different as one is case neutral and the other is case positive. If you have the SB1573N91, it is case positive. If you have the SB1473N91, it is case neutral.
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Old 08-03-2017, 06:08 PM #601
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Default Re: 505nm and 480nm diode RESULTS

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Originally Posted by paul1598419 View Post
Another reason I asked is that of the two that are ~503nm depending on which you have, the pin out is different as one is case neutral and the other is case positive. If you have the SB1573N91, it is case positive. If you have the SB1473N91, it is case neutral.
Thanks for the information! I have the case positive ones and the seller was so nice, that he included the pin-out in the package . Otherwise, this could be a quick dead for the diode.
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Old 08-03-2017, 06:19 PM #602
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Default Re: 505nm and 480nm diode RESULTS

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Originally Posted by paul1598419 View Post
Another reason I asked is that of the two that are ~503nm depending on which you have, the pin out is different as one is case neutral and the other is case positive. If you have the SB1573N91, it is case positive. If you have the SB1473N91, it is case neutral.
He got 2 of the 3 I offered for sale.
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Old 08-03-2017, 06:23 PM #603
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Default Re: 505nm and 480nm diode RESULTS

Oh, okay. Just didn't want you to find out the hard way. Got them from Dr.Laser. That was also good as he knows the difference.
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Old 08-04-2017, 05:47 AM #604
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Default Re: 505nm and 480nm diode RESULTS

I really do hope Sharp comes out with more diodes, along with Nichia & OSRAM. Pretty much everything is covered in the visible spectrum now apart from 530nm-620nm diode wise. Still nothing in that range, expect for DPSS and gas.

-Alex
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Old 08-04-2017, 08:01 PM #605
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Default Re: 505nm and 480nm diode RESULTS

My results so far:

I could easily push the 503,0nm diode to 499,5nm with just 8% feedback from a grating. Next week I will recieve a grating with a higher feedback at this wavelenght so +/- ~ 7nm should be no problem.

I will show my results later, when I acomplished my goal. Maybe this could be interesting for some users here.

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Old 08-04-2017, 08:34 PM #606
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Default Re: 505nm and 480nm diode RESULTS

That s very cool, Singlemode. I understand how it's done, just haven't seen anyone here actually do it. If you can force it down to 496nm, that will really be something. I imagine the power is severely limited when you do this. What are you getting out? 30 mW? Less?

Edit: BTW, I got the PTL5-488 diode today. Will be testing it soon. Need to know what the owner wants in the way of a module.
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Old 08-04-2017, 09:08 PM #607
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by paul1598419 View Post
That s very cool, Singlemode. I understand how it's done, just haven't seen anyone here actually do it.
If there is some interest in this, I could post some publications, other resourses and pictures of my own test setup, when I reached my goal.

Quote:
Originally Posted by paul1598419 View Post

If you can force it down to 496nm, that will really be something. I imagine the power is severely limited when you do this. What are you getting out? 30 mW? Less?
496nm is also my goal, because from 496nm to 498nm some atomic transitions are located, that are interesting to me. The output power depends on the amount of feedback back into the diode. 30% feedback means 30% less usable power.


Later I will measure the power for different currents to see how far I can push the diode without damage. Since I use active temperature stabilization for my laser diodes I usually operate at ~ 2x the spected current rating, sometimes more, depending on the diode.


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Old 08-04-2017, 10:15 PM #608
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Default Re: 505nm and 480nm diode RESULTS

I expected that you use Peltier TEC cooling. I would be interested in your scientific publications and photos. I might be able to use some of your research for my own purposes.
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445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
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635nm 5mW pointer
635nm 100mW pointer
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650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
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