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Old 09-12-2017, 05:04 AM #33
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Default Re: What is going on?

Quote:
Originally Posted by paul1598419 View Post
IDK, Alex. I guess that 477nm laser spoiled me. I can't get excited about 20 mW of 473nm when I have 127 mW of 477nm. Sure hope to see more of those diodes. Had I known what I do now, I'd have gotten more when they were available.
Haha, don't blame ya paul

-Alex


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Old 09-12-2017, 03:30 PM #34
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Default Re: What is going on?

Jumping to "crystals misaligned" without any other discussion seems a bit fast off the mark - especially with no mention of being dropped or otherwise subject to abuse.

Could be the LD, could be bad batteries, could be the driver, could be the temperature, a bad contact somewhere. Could be a whole host of things with DPSS. More troubleshooting needs to be done before writing it off as "crystals misaligned".
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Old 09-12-2017, 04:03 PM #35
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Default Re: What is going on?

That's the thing, I'm not sure if I should keep it, or try to get a new unit :/

-Alex
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Old 09-12-2017, 04:10 PM #36
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Default Re: What is going on?

Quote:
Originally Posted by Hap View Post
That's the thing, I'm not sure if I should keep it, or try to get a new unit :/

-Alex
Just keep it at least a few more months Alex! You've got to see if you can jump on the new diode bandwagon. I guess if the seller can help you, that's a different story.

As for the issue, it's probably on the electrical side due to temperatures, as I said earlier, the LBO won't be helped by being colder at start. Much easier to fix, but it's still difficult since it's a pen.
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Old 09-12-2017, 06:21 PM #37
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Default Re: What is going on?

Quote:
Originally Posted by Rivem View Post
Just keep it at least a few more months Alex! You've got to see if you can jump on the new diode bandwagon. I guess if the seller can help you, that's a different story.

As for the issue, it's probably on the electrical side due to temperatures, as I said earlier, the LBO won't be helped by being colder at start. Much easier to fix, but it's still difficult since it's a pen.
Okay! Yeah, it's still a pretty nice pen, even though it only outputs 2nW's on average

What do you think?

-Alex
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Last edited by Hap; 09-12-2017 at 06:28 PM.
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Old 09-12-2017, 06:55 PM #38
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Default Re: What is going on?

Quote:
Originally Posted by Hap View Post
Okay! Yeah, it's still a pretty nice pen, even though it only outputs 2nW's on average

-Alex
Is still a nice 2mW pen.

Could be a lot of different things causing the lower output.
Clean and the electrical contact points and and try a different new/fresh battery as well.
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Old 09-12-2017, 07:04 PM #39
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Default Re: What is going on?

Quote:
Originally Posted by Encap View Post
Is still a nice 2mW pen.

Could be a lot of different things causing the lower output.
Clean and the electrical contact points and and try a different new/fresh battery as well.
Thanks Encap!

I just tried a fresh new $6 CR2 Energizer I bought yesterday and same problem. The laser just won't put anything past 2mW's now. Like I mentioned before, I left it on my windowsill for about 2 hours and got a quick 5mW peak before it dipped back to 2mW's

-Alex
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Old 09-14-2017, 06:32 PM #40
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Default Re: What is going on?

There are too many factors that could be causing your issue. Still, it is a nice laser.
Even temperature deviation of the pump diode could cause power loss in 473's so it too hard to say without any tell-tale signs.
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Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

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Old 09-14-2017, 06:43 PM #41
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Default Re: What is going on?

Quote:
Originally Posted by CurtisOliver View Post
There are too many factors that could be causing your issue. Still, it is a nice laser.
Even temperature deviation of the pump diode could cause power loss in 473's so it too hard to say without any tell-tale signs.
Hey Curtis,

Yeah. Oh well. It works as a pointer which is what I need it for, so I'm happy

-Alex
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473nm: CNI GLP-473 4mW
450nm: Z-Bolt BLP-5-S 6mW
405nm: Carolina Violet Laser Pointer 3mW



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"The stars should fall and the earth be riddled, imagine all your problems be seem so little, funny how the world so brittle." -Tribal Seeds
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Old 09-14-2017, 06:49 PM #42
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Default Re: What is going on?

Yes it does.
Not being too high power means you can appreciate the wavelength more which is a plus.
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Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
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For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




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Old 09-14-2017, 06:58 PM #43
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Default Re: What is going on?

Quote:
Originally Posted by CurtisOliver View Post
Yes it does.
Not being too high power means you can appreciate the wavelength more which is a plus.
Yes! I've tried burning for awhile but it gets boring for me after awhile. I much rather have a rainbow across my room then a high powered beam. Unfortunately with pointers, the rainbow doesn't last very long since they are such small hosts.

-Alex
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473nm: CNI GLP-473 4mW
450nm: Z-Bolt BLP-5-S 6mW
405nm: Carolina Violet Laser Pointer 3mW



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"The stars should fall and the earth be riddled, imagine all your problems be seem so little, funny how the world so brittle." -Tribal Seeds
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Old 09-14-2017, 07:11 PM #44
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Default Re: What is going on?

Well, you just run out of things to burn.
Yes, it seems to get that way after awhile. I used to be 'the more power the better' but now I appreciate wavelength and beam spec more. Although if a new 10W 450nm came out tomorrow i'd still get it.
Maybe you should get some pointer converted to large hosts with better cooling?
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Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




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Old 09-14-2017, 09:36 PM #45
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Default Re: What is going on?

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Originally Posted by CurtisOliver View Post
Well, you just run out of things to burn.
Yes, it seems to get that way after awhile. I used to be 'the more power the better' but now I appreciate wavelength and beam spec more. Although if a new 10W 450nm came out tomorrow i'd still get it.
Maybe you should get some pointer converted to large hosts with better cooling?
Maybe... so far these pointers suit me fine!

-Alex
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Old 09-15-2017, 11:25 AM #46
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Default Re: What is going on?

Hello, Hap!
I had a very similar issue with my PGL-III-C@561nm. After a few weeks it dimmed a lot. Well, as a bad solution I tried to knock it a few times, so then I received a 0.01mW pointer.
I don't know the exact reason of this happening, but there was a misalignment. A temperature change was causing it to mode hop more frequently, maybe because the crystals were changing its position a bit when I was cooling laser's radiator/head with water.
So I had it reassembled and realligned and now it works. But now I cannot use it because I am unable to align the resonator in a way so it would lase straight through the apperture's hole. In other words, the axis is broken and it lases "into itself" (the output cap s blocking the beam).
That is, you probably have the similar issue. The bigger problem is that PGL-III-C are far more easy to disassemble with a set of screws and minimal amoung of glue used.
Another problem might be in the diode. These modules are using multimode diodes as far as I know and I saw some visible multimodes not lasing "at full power" for some reason missing some of ther modes.
Yet, if you would like I can send you my spartan 473 because now I got another 473nm laser and I don't need this spartan anymore. I will do this for free because I had it disassembled, but it still lases and you can use it to try to align a 473nm laser and experiment with it, don't know...

Ivan.
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Old 09-15-2017, 04:22 PM #47
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Default Re: What is going on?

Quote:
Originally Posted by Ivansuper View Post
Hello, Hap!
I had a very similar issue with my PGL-III-C@561nm. After a few weeks it dimmed a lot. Well, as a bad solution I tried to knock it a few times, so then I received a 0.01mW pointer.
I don't know the exact reason of this happening, but there was a misalignment. A temperature change was causing it to mode hop more frequently, maybe because the crystals were changing its position a bit when I was cooling laser's radiator/head with water.
So I had it reassembled and realligned and now it works. But now I cannot use it because I am unable to align the resonator in a way so it would lase straight through the apperture's hole. In other words, the axis is broken and it lases "into itself" (the output cap s blocking the beam).
That is, you probably have the similar issue. The bigger problem is that PGL-III-C are far more easy to disassemble with a set of screws and minimal amoung of glue used.
Another problem might be in the diode. These modules are using multimode diodes as far as I know and I saw some visible multimodes not lasing "at full power" for some reason missing some of ther modes.
Yet, if you would like I can send you my spartan 473 because now I got another 473nm laser and I don't need this spartan anymore. I will do this for free because I had it disassembled, but it still lases and you can use it to try to align a 473nm laser and experiment with it, don't know...

Ivan.
Great to hear from somebody that's actually dealt with these issues! That's pretty cool of you to offer a practice laser! +rep

Also, why don't you post some photos of that awesome collection in the "member collections" section?

If Hap doesn't want to try aligning the Spartan, I'd like to give it a go.
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Old 09-15-2017, 06:14 PM #48
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Default Re: What is going on?

Quote:
Originally Posted by Ivansuper View Post
Hello, Hap!
I had a very similar issue with my PGL-III-C@561nm. After a few weeks it dimmed a lot. Well, as a bad solution I tried to knock it a few times, so then I received a 0.01mW pointer.
I don't know the exact reason of this happening, but there was a misalignment. A temperature change was causing it to mode hop more frequently, maybe because the crystals were changing its position a bit when I was cooling laser's radiator/head with water.
So I had it reassembled and realligned and now it works. But now I cannot use it because I am unable to align the resonator in a way so it would lase straight through the apperture's hole. In other words, the axis is broken and it lases "into itself" (the output cap s blocking the beam).
That is, you probably have the similar issue. The bigger problem is that PGL-III-C are far more easy to disassemble with a set of screws and minimal amoung of glue used.
Another problem might be in the diode. These modules are using multimode diodes as far as I know and I saw some visible multimodes not lasing "at full power" for some reason missing some of ther modes.
Yet, if you would like I can send you my spartan 473 because now I got another 473nm laser and I don't need this spartan anymore. I will do this for free because I had it disassembled, but it still lases and you can use it to try to align a 473nm laser and experiment with it, don't know...

Ivan.
Thanks for your input Ivan! Yeah, these more exotic wavelengths are a real pain to get working if they aren't in a proper lab unit setting. They would work somewhat in a PGL host I assume, but in pointers it's just luck due to no TEC or cooling whatsoever.

I would gladly take your Spartan, but I'd have absolutely no clue on how to re-align that bad boy. I've never even tried to realign a 532, so 473 would be like learning physics for me

Quote:
Originally Posted by Rivem View Post
Great to hear from somebody that's actually dealt with these issues! That's pretty cool of you to offer a practice laser! +rep

Also, why don't you post some photos of that awesome collection in the "member collections" section?

If Hap doesn't want to try aligning the Spartan, I'd like to give it a go.
You can have it Rivem if you'd like, I don't think I'd be able to do any re-aligning. I'd like to see photos however

-Alex
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655nm: Roithner 650 Pointer 5mW
635nm: LaserGlow Libra 3mW
593.5nm: LaserGlow Rigel-2 3mW
532nm: Z-Bolt BTG-6-C 5mW
515nm: Generic Laser-Pointer-515P-10 Pen 12mW
473nm: CNI GLP-473 4mW
450nm: Z-Bolt BLP-5-S 6mW
405nm: Carolina Violet Laser Pointer 3mW



"Open your eyes, look within. Are you satisfied with the life you're living?" -Bob Marley
"The stars should fall and the earth be riddled, imagine all your problems be seem so little, funny how the world so brittle." -Tribal Seeds
“The universe is a pretty big place. If it's just us, seems like an awful waste of space.” -Carl Sagan
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