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SHARP 515nm laser diode GH05130B2G

TinLethax

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Yesterday I just order the Sharp Green 515nm laser from the LaserLands Store(not the 505nm,Please dont confused.)The model number is "GH05130B2G" amd In datasheet not mention about the tranverse mode... And I found the datasheet on the internet ,Then I mirrored to my onedrive link for further use when the diode arrived .Here is datasheet ,It seem no one in LPF mention about this diode.So I think someome here like paul or DTR will had ever touch this diode before .If the diode arrived I will fire up the laser and take some picture and then post here soon.
 

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paul1598419

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Nice! I have not looked at one of these diodes yet. I don't think it is a new Sharp diode as 515nm has been around for some time now. It would be interesting to see how close to 515nm it actually is.
 

TinLethax

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Too bad .I dont have LPM or Spectrometer .I can do only two things is taking the photo(s) and testing by adjust current and voltage.
 

paul1598419

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Eventually, you will want to get a LPM. You can often find someone willing to sell a used one still in good shape here in the BST threads. The hobbiest meters can give you a 5% accuracy. Spectrometers are a whole other aspect. Most members here never get a spectrometer, so you can have a great laser collection without one to test with.
 

TinLethax

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I had planned to make a LPM (I dont really need the high precision).
 

Lifetime17

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Hi,
As Paul said you can get a reasonably cheaper LPM in the BST section. They are good to have in this hobby. And it will save time over building one to.

Rich:)
 

paul1598419

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The problem with making your own is there is no way to calibrate it without a calibrated meter to test against. Sure, you can put one together for $50.00, but you still need to calibrate it.
 

TinLethax

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Today ,My Laser in arrived .soon (may be 7 pm +7 timezome) I will test the laser and some pictures for LPF.
 

paul1598419

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Interesting. If you are correct about the diode used in it the threshold current is 50 to 75 mA and drive current is 175 mA. I'm sure it could be easily driven at 275 mA with a Nano Boost driver. It would likely output 100+ mW with that driver. I wonder why the laser is only claimed to be 35 mW?
 
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TinLethax

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In datasheet said, And datasheet is not mention about the transverse mode ,I hope It's single mode.
 

paul1598419

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Yes, this is a single mode laser diode. You can tell by the divergence specs in the data sheet. It is tiny and very dim in the format you showed it. I had to look very closely to make sure I wasn't making a mistake as it is very difficult to read on my laptop.
 

TinLethax

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This one under is Sharp spec



This one under is Osram PLT5 510


I'm comparing with the osram 515nm diode (Sharp 515nm and PLT5 510_B1).
 

TinLethax

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I hooked up the laser .And I a good news and bad news
Good news is The laser fired up successfuly but the Bad news is After I tested with the boost circuit @ around 5 volt ,Laser start to LAZE .but My multi meter is dead -_- so I cant known the current at the time.
And the worst news is LASER IS DEAD after I connected to the current control CN5611 .The CN5611 start hot and the laser never LAZE again 😢
I will order this new soon If my money is enough 😢
Here are some Images
 
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