GB: 473nm diode information / giveaway

• Aug 23, 2013

• #193

ARG

0

Joined

Feb 27, 2011

Messages

6,772

Points

113

This is beyond my scope, what the......?

Visually, slightly different than 473nm now, nothing much to see.

 

• Aug 23, 2013

• #194

ZRaffleticket

0

Joined

Feb 4, 2010

Messages

3,280

Points

113

Oooooooh 480nm... Z wants....

 

• Aug 23, 2013

• #195

ARG

0

Joined

Feb 27, 2011

Messages

6,772

Points

113

300mA, the 480nm line has taken over.

Anybody have ideas? Why is this happening?

 

• Aug 23, 2013

• #196

Atomicrox

0

Joined

Jun 22, 2011

Messages

2,431

Points

83

This is looking too wide, it may no longer be lasing...

 

• Aug 23, 2013

• #197

bloompyle

2

Joined

Apr 26, 2010

Messages

4,175

Points

83

 

• Aug 23, 2013

• #198

ZRaffleticket

0

Joined

Feb 4, 2010

Messages

3,280

Points

113

It appears not with a 13nm spread... but hell I'll take it and use 300mA to see THAT.

 

• Aug 23, 2013

• #199

ARG

0

Joined

Feb 27, 2011

Messages

6,772

Points

113

I killed all ambient light (expect for dim indicator on the back of the spectro) and took a couple clean readings at 302mA.

Warning: Large.
http://i.imgur.com/UUbmeyF.png
http://i.imgur.com/WoXaXEp.png

 

Last edited: Aug 23, 2013

• Aug 23, 2013

• #200

Atomicrox

0

Joined

Jun 22, 2011

Messages

2,431

Points

83

Does it look laserish? (i.e. with the interference speckles)?

 

• Aug 23, 2013

• #201

bloompyle

2

Joined

Apr 26, 2010

Messages

4,175

Points

83

300mA is pushing it I think. I mean, it's not like we kill one and get a thousand more based off the tests.

 

• Aug 23, 2013

• #202

ARG

0

Joined

Feb 27, 2011

Messages

6,772

Points

113

Atomicrox said:

Does it look laserish? (i.e. with the interference speckles)?

Click to expand...

Yup, still looks like a laser dot.

 

• Aug 23, 2013

• #203

Mattronium

0

Joined

Dec 12, 2012

Messages

854

Points

63

bloompyle said:

300mA is pushing it I think. I mean, it's not like we kill one and get a thousand more based off the tests.

Click to expand...

Yah, I would agree, no need to endanger such a rare diode's life.

 

Last edited: Aug 23, 2013

• Aug 23, 2013

• #204

ZRaffleticket

0

Joined

Feb 4, 2010

Messages

3,280

Points

113

Maybe true, I still want a 480nm though

 

• Aug 23, 2013

• #205

Atomicrox

0

Joined

Jun 22, 2011

Messages

2,431

Points

83

Cool! I agree with stopping now. Efficiency is already going down, anyways.
Do you have a grating? Try to get some shots of the lines!

 

• Aug 23, 2013

• #206

ARG

0

Joined

Feb 27, 2011

Messages

6,772

Points

113

bloompyle said:

300mA is pushing it I think. I mean, it's not like we kill one and get a thousand more based off the tests.

Click to expand...

Efficiency is still going up, we're in the clear Where's your sense of adventure?

I tested this out with a diffraction grating, two dots side by side repeating, there is most definitely TWO wavelengths coming out of this diode. Going to get my tripod and I'll be back with a picture.

 

• Aug 23, 2013

• #207

Atomicrox

0

Joined

Jun 22, 2011

Messages

2,431

Points

83

If it's still going up then go for it!

Unfortunately I have to go to work tomorrow morning... gotta go to bed now.

See you guys tomorrow!

 

• Aug 23, 2013

• #208

Mattronium

0

Joined

Dec 12, 2012

Messages

854

Points

63

Atomicrox said:

If it's still going up then go for it!

Unfortunately I have to go to work tomorrow morning... gotta go to bed now.

See you guys tomorrow!

Click to expand...

Same here, gotta go to bed. I will definitely be checking back for updates in the morning.

 

Last edited: Aug 23, 2013