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New SHARP 450nm 1650mw

Yes,I always want that, I need 2w 450nm with 1mrad divergence than 6w 450nm with 10mrad pristine divergence
 





That beam looks good, I am waiting for my sharp diodes to arrive, did you say you are driving at 2.2amps ?
Also the diode I order was listed as GH04C01A2G and calls for 1.2amps

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Sharp GH04C01A2G 450nm 1650mW Blue Laser Diode/TO18 5.6mm/Brand NEW | eBay

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Hi
2.2A seems a lot for that diode maybe 1.8A to be a little conservative
What is the LPM reading at 2.2A
Well I guess I’ll see when I test mine when that batch gets here

Rich
 
Yes I think 1.6a is the Max so I was also thinking 1.7-1.8a
I blew an Osram PLTB450B before @ only 1.8a but maybe it was a flawed diode, it was a putting out a nice tight beam waist on the desktop and burnt as well as any m-140 but died way early.
 
Hi Red,
I run all the LPTB450B diodes at 1.8A and yes you probably recieved a bad one . Those diodes are really nice always liked them.
Rich:)
 
The laser is G2 lens? It looks like a single mode like PLP520B1.
PLP is multi diode however special multi diode like single mode diode
 
RedCowboy:i want you to sacrifice a diode for full testing, as DTR once did, we always want to, to find sweet points for every diode, I think this diode is like pltb450b ,but that's just a guess( i think 2.2a is max current we can set,then diode will die)

Lifetime17 yes, tested at 1.8A,still survival

Miya: no it is 2-2.2mrad with g2,same osram
 
I only have 2 diodes ordered but I will order more if the divergence is that good and if no one else has I will probably do a murder test video with my laser power meter and variable power supply, right now I am using a 20w hyperion but soon I will order a 20w sanwu
 
This diode's better divergence specs come from its emitter geometry. That is the real difference between it and the Nichi@ multi-mode diode that we have all come to know and love.
 
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i think It is equal the M462 wavelength and the half-divergence of the M140
 
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