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Old 07-27-2017, 03:56 PM #97
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Default Re: new Sharp 495nm diode

Quote:
Originally Posted by dden4012 View Post
Did it happen to be one for the red diodes? Maybe it's acting as a filter. An acrylic lens cuts it down but there is a loss in output so that's where I'm trying to associate the relation.
It could very well be I could have mixed some up, I'll have a look when I get home it should have a blue tint if it's for red!


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Old 07-27-2017, 04:12 PM #98
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Default Re: new Sharp 495nm diode

Quote:
Originally Posted by ZRaffleticket View Post
The box forms from light reflecting back on to the die. Lenses with AR coating cut it back a lot, and lenses that sit further from the diode almost eliminate the box.
Actually I tried a few lenses last night and a 2 element lens that nearly falls out when focused still showed a lot of splash, this lens is AR coated for 520 I believe, and another 3 element that stuck out of the module 3quarters had a terrible splash around the dot, witch is why I said no 2 are the same, I have many G2 and one works better on one diode and worse on another and visversa!

The acrilic lenses are no good on this diode either if u want to get rid of the die reflections!
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Old 07-27-2017, 07:09 PM #99
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Default Re: new Sharp 495nm diode

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Originally Posted by astralist View Post
Although a bit OOT, strangely all my 405nm low power laser pen has this mode too (just like TEM01 in pic below),
The center is dimmer than the edge, but only on a slight level which could only be observed using goggles



IMO i suspected that it is not a defect, but rather a "feature"
But of course we need to see other diode first before coming to a conclusion
These TEM01 and multi transverse modes only pertain to gas lasers like the He-Ne. Donut moding is not uncommon in these lasers, but never been actually seen in direct diode lasers. For this reason, I believe it is something entirely different. I have seen these modes myself in gas lasers and reported them here a long time ago. But, without having the diode here to examine, this is all just speculation.
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Old 07-27-2017, 08:31 PM #100
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Default Re: new Sharp 495nm diode

This how the beam looks like on this diode.

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Old 07-27-2017, 08:38 PM #101
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Default Re: new Sharp 495nm diode

Still don't know what to make of this, Dr.Laser. I know it is not donut moding, though. I hope all of these diodes don't turn out like this.
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Old 07-27-2017, 08:46 PM #102
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Default Re: new Sharp 495nm diode

Tomorrow when I get mine built I'll see if I get the same effect. Hopefully CNI is just exaggerating...
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Old 07-27-2017, 10:26 PM #103
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Default Re: new Sharp 495nm diode

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Originally Posted by Dr.Laser View Post
This how the beam looks like on this diode.

That doesn't look so bad chuck a3 element on it I'm sure it'll be fine, if you don't want it PM me!
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Old 07-28-2017, 12:04 AM #104
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Default Re: new Sharp 495nm diode

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Originally Posted by Dr.Laser View Post
This how the beam looks like on this diode.

Which diode is this?
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Old 07-28-2017, 12:07 AM #105
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Default Re: new Sharp 495nm diode

Sharp's new '495'nm diode clocking in at 488nm.
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Old 07-28-2017, 12:56 AM #106
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Default Re: new Sharp 495nm diode

guess no 495nm for a while. still $75 for a 488 isnt that bad at all

also iirc my 20mw violet has a sort of doughnut ring pattern described in that picture up there maybe i can get some pictures
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Old 07-28-2017, 12:59 AM #107
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Default Re: new Sharp 495nm diode

So, did these diodes disappear completely from the market? I'm asking because I know some of you guys have good connections to Chinese suppliers.
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632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

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Old 07-28-2017, 01:01 AM #108
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Default Re: new Sharp 495nm diode

Every supplier I've managed to contact says they have never heard of these diodes before. Many suppliers also say the 505's and 480's shouldn't exist.
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Old 07-28-2017, 01:12 AM #109
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Default Re: new Sharp 495nm diode

Quote:
Originally Posted by astralist View Post
What i see was when it's collimated and it's unnoticeable when viewing with naked eye,
only when using goggle, the center looks dimmer with circular shape than the edge.
does it look something like this?

this is my 20mw violet and it sounds like its doing something similar to what youve described

edit: 100th post!! yay!
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Old 07-28-2017, 01:20 AM #110
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Default Re: new Sharp 495nm diode

Quote:
Originally Posted by ZRaffleticket View Post
Every supplier I've managed to contact says they have never heard of these diodes before. Many suppliers also say the 505's and 480's shouldn't exist.
That's some bad news. Hope someone manages to find more of them.
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low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

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Old 07-28-2017, 01:27 AM #111
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Default Re: new Sharp 495nm diode

I'm still semi-actively digging for more suppliers of the 480's and the 495's. Right now, the 480's are still available by lasertack by request... I just checked with them if they can get info about the 495's.

My first supplier for the 480's isn't responding to my emails.
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450nm 300mW
462nm 2W MS-SSW
472nm 2W maglite
480nm 125mW mrcrouse
485nm ??????
488nm 20mW Uniphase Argon
502nm 85mW badboybilly host
510nm 90mW PLANNED
520nm 30mW laserlands pointer
532nm 25mW Cheap Pen
589nm 100mW Spartan multiline
635nm 200mW C6
650nm 350mW PLANNED

DPSS Theoretical Wavelength Chart

Last edited by ZRaffleticket; 07-28-2017 at 01:27 AM.
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Old 07-28-2017, 01:30 AM #112
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Default Re: new Sharp 495nm diode

I'd rep you, but I can't :/
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405nm: NewWish (29.1mW avg|5mW rtd) | Dilda (81.5mW avg|200mW rtd) | 501B by Blord (633mW pk)
low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

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