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SHARP 515nm laser diode GH05130B2G

paul1598419

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You sure have had your share of bad luck. I take it you only have one DMM. I have four. I'm not sure what you did that preceded the laser failing so I can't say if it is something you did. Anyway, I hope you are able to replace it.
 



TinLethax

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Jul 19, 2018
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By the way ,I haven't see people around here testing the SLD3232VF ,I got four of them.I will open the thread in violet laser soon .Also If I order the replacement diode,I will make a update here.
 

TinLethax

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Its seem sharp is developing the later version of 520nm green laser diode Link

The left side is GH05130B2G and the right side is GH0521DA2G. I cant find any information about this diode ,may be in developing progress. "A comparison between Sharp's new and previous green-light laser diodes. The newly-developed product with a wavelength of 520nm and an output of 130mW (right) and an existing laser diode with a wavelength of 515nm and an output of 30mW (left). The light from the left diode is slightly bluish. "
 

smallfreak

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Aug 14, 2018
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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.
Maybe you don‘t need a professional spectrometer. With just a cheap grating (a dollar on eBay) and a ruler you may measure the wavelength to about a Nanometer with a good beam quality. You can try with a spare DVD-R, but you should check track density with a known wavelength. There are quite some YouTube instructions on this.
 

TinLethax

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Jul 19, 2018
Messages
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Diffraction Grating ? ,I have many of them at my school .may be later because
-Laser is died ,I will order new one soon
-School is on vacation
 




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