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 Laser Pointers Verbal and Photo Descriptions of the Visible Wavelengths

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03-10-2017, 04:41 PM #49
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,576 Rep Power: 1781829
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Yellow is rare, even more scarce at higher powers. I should have bought that pointer lasergirl was selling for 400 bucks when I had a chance, it was way over spec.

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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

03-10-2017, 04:48 PM #50
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Accutronitis
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Quote:
 Originally Posted by Alaskan Yellow is rare, even more scarce at higher powers. I should have bought that pointer lasergirl was selling for 400 bucks when I had a chance, it was way over spec.
What wavelength and power was it ?

Last edited by Accutronitis; 03-10-2017 at 04:49 PM.

03-10-2017, 05:22 PM #51
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,576 Rep Power: 1781829
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

All I remember was it was yellow and 70mw with a beam expander, was it Laser Chick ? Or maybe someone else, I cannot find the post now, I probably have the seller name wrong, but it was a girl.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

03-10-2017, 05:38 PM #52
 Class 4 Laser Join Date: Feb 2008 Location: Yellowknife, NT, Canada Posts: 9,132 Rep Power: 1290670
diachi
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Quote:
 Originally Posted by Alaskan All I remember was it was yellow and 70mw with a beam expander, was it Laser Chick ? Or maybe someone else, I cannot find the post now, I probably have the seller name wrong, but it was a girl.

Had to be 589nm at that power in a portable, 593.5nm is way less efficient.
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355nm | Bruker SmartBeam | Q-Switched Nd:YAG | Awaiting Arrival
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445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
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473nm | B&W Tek BWB-10-OEM |
488nm | Spectra Physics 163 Argon | ~30mW Metered |
495nm | Laser66 Pen Build | WIP
515nm | PL515 Pen Build | 50mW | >>Build Thread<<
520nm | Laserlands 520 5mW | 3mW Metered | Review Unit | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered |
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W

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03-10-2017, 06:09 PM #53
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,597 Rep Power: 1773084
CurtisOliver
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Yes, definitely 589. 594's are 1-2% efficient at best.
I own two 589's Accutronitis, never seen a 594 in person myself.
__________________
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

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

Which company should I buy from? By Sta

Use this link if you want the chance of winning free bitcoin.
Every hour you can roll for some free satoshi which you can then spend on lottery tickets.
Lotteries are weekly and often see >1 BTC prize totals worth around \$10,000.
It doesn't cost you anything and you could end up winning big, meaning you could have more money for lasers.

Free Bitcoin Lottery

Wavelength to RGB Converter

03-11-2017, 08:16 AM #54
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,576 Rep Power: 1781829
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Quote:
 Originally Posted by CurtisOliver I'll risk the continued necro. Different lines for the different crystals. Nd:YAG (1064+1319=589) Nd:YVO4 (1064+1342=594)

Who hoo! I found some affordable ND:YVO4 rods

https://mi-lasers.com/product/ndyvo4...-3-3-x-12-mm-2
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 03-11-2017 at 08:18 AM. Reason: added quote from previous page

03-11-2017, 08:26 AM #55
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,597 Rep Power: 1773084
CurtisOliver
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Not bad sizes for that price. Nd:YVO4 is cheap in small sizes as you can just retrieve them from pointers but harder to obtain for cheap in large sizes.
__________________
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

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

Which company should I buy from? By Sta

Use this link if you want the chance of winning free bitcoin.
Every hour you can roll for some free satoshi which you can then spend on lottery tickets.
Lotteries are weekly and often see >1 BTC prize totals worth around \$10,000.
It doesn't cost you anything and you could end up winning big, meaning you could have more money for lasers.

Free Bitcoin Lottery

Wavelength to RGB Converter

03-11-2017, 10:34 AM #56
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,576 Rep Power: 1781829
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Only other surplus YVO4 rod I could find was on ebay for over 300 dollars, it was mounted with a TEC, but way too much I thought.

Have a question you might know the answer to, or someone; why would a YVO4 rod have a section without doping, such as these?

__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 03-11-2017 at 10:35 AM.

03-11-2017, 11:53 AM #57
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,597 Rep Power: 1773084
CurtisOliver
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

To be honest Alaskan, I don't know off the top of my head. I have only ever come across one or the other, not ones like that. I'm quite interested to know why actually.
__________________
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

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

Which company should I buy from? By Sta

Use this link if you want the chance of winning free bitcoin.
Every hour you can roll for some free satoshi which you can then spend on lottery tickets.
Lotteries are weekly and often see >1 BTC prize totals worth around \$10,000.
It doesn't cost you anything and you could end up winning big, meaning you could have more money for lasers.

Free Bitcoin Lottery

Wavelength to RGB Converter

03-11-2017, 06:02 PM #58
 Class 3B Laser Join Date: May 2011 Posts: 3,719 Rep Power: 1669546
Encap
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Quote:
 Originally Posted by Alaskan Only other surplus YVO4 rod I could find was on ebay for over 300 dollars, it was mounted with a TEC, but way too much I thought. Have a question you might know the answer to, or someone; why would a YVO4 rod have a section without doping, such as these?
To get to the other side?

From Onyx web site
"AFB® YVO4 or GdVO4 components are extremely useful for higher power in YVO4-based laser systems. Undoped end-caps increase damage threshold by separating the pump input face with the lasing doped portion. Onyx produces slabs and rods with plano or spherical end faces."

03-11-2017, 06:53 PM #59
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,597 Rep Power: 1773084
CurtisOliver
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Thanks Encap. That's useful to know.
__________________
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

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

Which company should I buy from? By Sta

Use this link if you want the chance of winning free bitcoin.
Every hour you can roll for some free satoshi which you can then spend on lottery tickets.
Lotteries are weekly and often see >1 BTC prize totals worth around \$10,000.
It doesn't cost you anything and you could end up winning big, meaning you could have more money for lasers.

Free Bitcoin Lottery

Wavelength to RGB Converter

03-11-2017, 08:33 PM #60
 Class 3B Laser Join Date: May 2011 Posts: 3,719 Rep Power: 1669546
Encap
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Quote:
 Originally Posted by CurtisOliver Thanks Encap. That's useful to know.
This type of composite crystal is available from manymanufacturers and suppliers--diffusion bonded laser crystals

Here is a bit more about types and reasons: https://www.rp-photonics.com/composi..._crystals.html

Last edited by Encap; 03-12-2017 at 12:32 AM.

03-12-2017, 07:13 AM #61
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,597 Rep Power: 1773084
CurtisOliver
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Thanks again. Can't rep you again yet.
__________________
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

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

Which company should I buy from? By Sta

Use this link if you want the chance of winning free bitcoin.
Every hour you can roll for some free satoshi which you can then spend on lottery tickets.
Lotteries are weekly and often see >1 BTC prize totals worth around \$10,000.
It doesn't cost you anything and you could end up winning big, meaning you could have more money for lasers.

Free Bitcoin Lottery

Wavelength to RGB Converter

03-14-2017, 07:58 AM #62
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,576 Rep Power: 1781829
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Re: Verbal and Photo Descriptions of the Visible Wavelengths

Encap, just found your answer and link, tks much, mo rep coming. I found some .5% doped YVO4 rods and some 3% doped, have been searching the net trying to find information regarding doping but so far, only info I can get goes up to 2%. Can't find application info for the higher doping level, any thoughts?

https://mi-lasers.com/product/ndyvo4...-3-3-x-12-mm-2
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

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