Max output for a 635 nm laser, while affordable?

Cool! I just asked a few people about how much per diode to my door ten would be. So if it's =/<$175 that would be nice!

Just a heads up - I already contacted the 3 north american distribs for Opnext, before we chatted here - so they may be seeing some duplication of inquiries, lol.

rhd said:

DJNY: The ML520G55 is really low power though - 20mw

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What? NO

Here is a chart Glyn - Laser Dioden


The ML520G55 is a 180mW singlemode 638nm diode.

Well, would you be okay with taking this to pm? And maybe telling me who was the cheapest ? If not it's fine, but it would be really cool! Haha

jakeGT said:

Well, would you be okay with taking this to pm? And maybe telling me who was the cheapest ? If not it's fine, but it would be really cool! Haha

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Oh - none have replied yet (this was like Thursday or Friday). But I'll pass along any news

DJNY said:

The ML520G55 is a 180mW singlemode 638nm diode.

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My apologies - you are right
That looks intriguing. Probably a response to the Opnext 170mw diode.

This is what I'd like:
Mitsubishi ML501P73 Red Laser Diode for Pico Projectors | Science Magazine News

And datasheet here:
http://www.mitsubishichips.com/Glob...t/laserdevice/ldindis/638nm/ml501p73_1123.pdf

Apparently, while still multi-mode, its divergence is manageable. 445s are multimode, and we made them work. These ones are designed for projectors too, so I have a feeling their multimode might not be the horrible gap-filled reality of a lot of other 635nm multimode diodes. Plus, 500mW ??

DJNY said:

What? NO

Here is a chart Glyn - Laser Dioden


The ML520G55 is a 180mW singlemode 638nm diode.

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These diodes look pretty sweet - would you guys be interested If I were to buy a pack and stock them at Radiant?

MarioMaster said:

These diodes look pretty sweet - would you guys be interested If I were to buy a pack and stock them at Radiant?

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Pardon my French but...
HELL to the YES!

For sure!

You should comparison shop with the hl63133dg then as well. I think it has ever so slightly better beam specs (but very similar). I think it's 9,17 instead of 9,19

I say YES + PM´d you

In the end I need someone to put this into a host :beer:

Won´t push these to far + a host with a great cooling should be the home for these diodes.

Surely YES! I'm maybe gonna put one in a new style dilda host - DILDA DELUXE!

Also, I found a datasheet for the ML520G55.

I´m gonna run mine on min.-current for sure! I´m more interested in the color difference than in the power.

Johnyz said:

That one is multimode, we all heard terrible stories about the Mitsubishi .5W line generators. The HL63133DG is single mode, that's what makes it so interesting.

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Are you sure ? ..... the datasheet don't say TEM00 or "single mode", it say only "TE mode oscillation" (whatever they means with this, it's not too much clear for me ..... mode change ? ..... )



EDIT: @ DJNY

I usually don't trust too much alibaba site, cause they carry very strange informations ..... as example, i don't read Chinese, but know the meaning of some of the characters, for have looked a lot of them searching for electronics .....

The page you linked say in the order box .....

数量(PCS) (order quantity) 1000 pcs or more (usually in multiple of 1000)

价格(元/PCS) (price ? ("money" for each piece, in China they use RMB as money) -> 1 RMB each piece (for 1000 pieces or more, ofcourse)

发货地： 广东 深圳 福田区 ..... ? items? "shipping" : ? east ? "shenzen", (bless ?) ? ?

单位重量： 10公斤 ..... not sure ..... can be something similar to " ? ? ? volume 10 ? ? (Kg ?)"

More of this, i don't understand, sorry ..... but, seriously, 1 RMB each piece ? ..... ok, i know it's 1000 pieces minimum, and renminbi (Chinese yuan) is not so high value, but this is something like 0.15 $ each :thinking: ..... there is an error somewhere, i suppose .....

100% sure
Check it out on this page (says single mode)
Thorlabs.com - Visible Laser Diodes: Center Wavelengths from 375 nm to 785 nm

HIMNL9 said:

Are you sure ? ..... the datasheet don't say TEM00 or "single mode", it say only "TE mode oscillation" (whatever they means with this, it's not too much clear for me ..... mode change ? ..... )

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Ahem,

Multiple traverse mode

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Also, look at the divergences:
HL6388MG (multimode): parallel 11° perpendicular 40°
ML520G55 (singlemode): parallel 9° perpendicular 19°
HL63133DG (singlemode): parallel 9° perpendicular 17°

180mW of ML520G55 is only 1% brighter than 170mW of HL63133DG given the single nm of typical wavelength difference.
Beam: (638nm 180mw) vs. (637nm 170mw)

Knowing that, I would pick the diode to stock or GB based entirely on cost (and perhaps consider the slightly better divergence of the Opnext)