501-561nm?

[Trevor]

i'll pm him.

Oh, sorry, thought it was something you might know off the top of your head. Don't go to a bunch of trouble... :tinfoil:

-Trevor

 

[Cyparagon]

According to my findings, current actually has more of an effect on wavelength than temp. Depending on the diode, I could only lower the wavelength 3-4nm by cooling it to near freezing. But when keeping the temp relatively constant, the difference between running the diode at threshold current and at near-death current is sometimes an increase of 12nm.

 

[steve001]

I was looking around and had stumbled upon this.
Focalprice.com offers 100mW 501-561nm Strongest Green Laser Pointer ,discount 100mW 501-561nm Strongest Green Laser Pointer,100mW 501-561nm Strongest Green Laser Pointer products,low price 100mW 501-561nm Strongest Green Laser Pointer,cheap 100mW 501

Now, not only the "strongest" lable turns me off, but how does it mean 501-561nm?
Now I'm no diode-ologist, but aren't diodes usually pretty controlled? I see the power stickers on lasers claim +/- 5nm, but +/- 30nm?

Going by this, which isn't the most accurate...

That could get a nice bluish color or a pretty generic green.
Can any body clarify what I'm looking at here?
I used search and couldn't find anything and the product seemed.... all out of whack.
I know it's from an unrepeatable dealer... just wondering.

It means they offer lasers with outputs at discrete wavelengths of 501 through 561, such as 543, 523, 555nm... . No diode laser that I know of is tunable over such broad wavelengths.
Here's a company that offers the same Green Laser, compact green 532nm laser system, CW and Q-switched green laser system

 

[Trevor]

According to my findings, current actually has more of an effect on wavelength than temp. Depending on the diode, I could only lower the wavelength 3-4nm by cooling it to near freezing. But when keeping the temp relatively constant, the difference between running the diode at threshold current and at near-death current is sometimes an increase of 12nm.

Quite interesting; thanks for sharing! Probably explains why 8x and 12x lasers look so nice...

-Trevor

 

[weeba2kv]

What a BULLSHIT !!!! put a lock on this topic

 

[chipdouglas]

According to my findings, current actually has more of an effect on wavelength than temp. Depending on the diode, I could only lower the wavelength 3-4nm by cooling it to near freezing. But when keeping the temp relatively constant, the difference between running the diode at threshold current and at near-death current is sometimes an increase of 12nm.

(nudge, nudge) what about your 418nm blu-ray mister!!!


michael.

 

[Cyparagon]

I guess it was a phr-805. It'll only last a few minutes at that current though. (series 1 is cooled in a 40W TEC)

 

[firelight]

I guess it was a phr-805. It'll only last a few minutes at that current though. (series 1 is cooled in a 40W TEC)

That's interesting, I wouldn't have expected that. Thanks for the graph. Does the author make any conclusions about why this might happen?