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 Laser Pointers 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

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02-28-2017, 04:11 PM #33
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Want to become a slave to a bank, or several of them? Just let credit card debt rise up so high you can't do anything but pay the minimum.

__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

03-01-2017, 05:18 AM #34
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Here's a photo of the YAG for the green 532nm SHG.

The doubling SHG KTP crystal to convert 1064nm IR to 532nm visible green is in the copper mount on the left. The YAG which is pumped with an 808nm IR diode to produce 1064nm IR in the middle, the 20W 808nm diode bar (max power, not what it is running at) on the right side. I am assuming the non-linear SHG crystal is KTP.

The 1064nm energy from the YAG in the middle of the photo is turned around and shot into the SHG crystal on the left from a mirror which would be where the camera is at, that same mirror allows 532nm green to leave the cavity while continuing to reflect 1064nm IR back and forth into the SHG crystal which has a highly reflective mirror behind it.

This is intracavity SHG, the NL crystal could be outside of the IR mirror cavity, but is more efficient when placed within it, requiring less 1064nm power, if I understand correctly.

__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

Last edited by Alaskan; 03-01-2017 at 07:00 AM.

03-01-2017, 06:17 AM #35
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Quote:
 Originally Posted by Alaskan Here's a photo of the YAG for the green 532nm SHG. The doubling SHG KTP crystal to convert 1064nm IR to 532nm visible green is in the copper mount on the left. The YAG which is pumped with an 808nm IR diode to produce 1064nm IR in the middle, the 20W 808nm diode bar (max power, not what it is running at) on the right side. I am assuming the non-linear SHG crystal is KTP. The 1064nm energy from the YAG is turned around and shot into the SHG crystal from a mirror which would be where the camera is at, that same mirror allows 532nm green to leave the cavity while continuing to reflect 1064nm IR back and forth into the SHG crystal which has a highly reflective mirror behind it.
At the very least, you'll have nice mounts, crystals and other components to reuse if this ends up having any issues.
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03-01-2017, 06:55 AM #36
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Yep, I have spare YAG assemblies for the red and yellow, just don't have spare non-linear crystals.

Edit: Adding a top down photo:

Notice there isn't a temperature probe on the YAG crystal, only the diode and NL crystal need to be monitored and adjusted to be at a specific temp.
The diode appears to have a pair of resistors mounted to it for heating, the NL crystal a TEC under it. You can see the wires running to the TEC to heat or cool the NL xtal on the right side, along with the thermistor wires.
__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

Last edited by Alaskan; 03-01-2017 at 07:34 AM.

03-01-2017, 07:31 AM #37
 Class 3R Laser Join Date: Oct 2015 Location: Planet Earth Posts: 1,045 Rep Power: 333234
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

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This is what happen if you shine the laser at the ( UFO ) it may shine back as
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03-01-2017, 07:37 AM #38
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

My wife is amazing to be willing to take these photo's for me while I am working over seas.

Edit: a ray diagram - updated with BAW optics identification.

__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

Last edited by Alaskan; 03-02-2017 at 11:25 AM.

03-01-2017, 09:40 AM #39
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,416 Rep Power: 1044866
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Quote:
 Originally Posted by Alaskan My wife is amazing to be willing to take these photo's for me while I am working over seas.
__________________
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

Which company should I buy from? By Sta

Wavelength to RGB Converter

Last edited by CurtisOliver; 03-01-2017 at 10:16 AM.

03-01-2017, 10:00 AM #40
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Ha, I already updated the photo with more info. For big photo's like that, quoting them makes the thread a bit long? Maybe no one else cares and I'm too, what's the word? I am surprised she hasn't said anything about the stuff I keep buying, maybe because I've been spending so much on that apartment.
__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

03-01-2017, 10:18 AM #41
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,416 Rep Power: 1044866
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

I've edited my post to not include the photo.
Lol, yes you can fill up the original house with more lasers, if you finish up the apartment to get away from them.
__________________
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

Which company should I buy from? By Sta

Wavelength to RGB Converter

03-01-2017, 10:24 AM #42
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

I already have too much laser stuff, but mostly because each item is in it's own box from stuff I've bought on ebay and not unpacked it yet. The question of how I can get it all to Ukraine, if I retire there to live in that apartment, is already a big one. Costs too much to ship stuff overseas if moving.

It's like the 5th time I've edited that photo, I think I'm done now. Spastic editing guy that I am. I just added the YAG output wavelengths, not saying I understand how they get 1319 nm out of that YAG for the red laser, I don't see how yet. For the "yellow" or 561 nm YAG I see what they are doing, filtering out the 1064 nm and only letting 1122 nm through, for the green, of course 1064nm is easy as it is the highest power peak out of an ND:YAG and if you let it alone, all of the power goes to that wavelength.

Another edit to add this from the original ebay listing, in case anyone is interested:

Quote:
 This is a used Tri-Color High Power DPSS laser head with complete intracavity optics. Installed is a duel fiber optic port. Cooled by a large heat sinc, ceramic TEC coolers, and fan. Included is a complete description of the intra-cavity optics and beam control optics. Schematic of the optics included. You will know exactly what is inside. Manufactured by Lumenis This is a component of the Novus Varia Laser. Produces a 532 Green, 561 Yellow, and 659 Red beam Its in great used condition and doesant apear to be broken. This is a partial list of the intra-cavity optics: one pump diode for 659 system (20W @ 806nm) one pump diode for 561 system (20W @ 806nm) one pump diode for 532 system (20W @ 806nm) Nd YAG- 1 1319nm Nd YAG- 2 1123nm Nd YAG- 3 1064 KTP SHG 659 KTP SHG 561 KTP SHG 532
__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

Last edited by Alaskan; 03-01-2017 at 10:34 AM.

03-01-2017, 10:34 AM #43
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,416 Rep Power: 1044866
CurtisOliver
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

It's called perfectionism. Could you possibly edit again and remove the stray text box to the left. Oh, and also I would like to see the percentage of reflectivity/transmittance for every optical element. Only kidding.

Remember that Nd:YAG emits multiple lines at once, but some are weaker than the others. Depending on the line, it may also only become present when involved in a cavity with the appropriate coatings for that line. The YAG will most definitely be outputting 1064nm, but it can also output the 1319 and 1122nm. Oh, with some genius at work, you could split the 1319nm line to create a SFG with 1064nm to produce a 589nm.
__________________
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

Which company should I buy from? By Sta

Wavelength to RGB Converter

03-01-2017, 10:43 AM #44
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Damn, missed that! Wish I could get 589 out of it, I wonder why splitting that won't work. I read somewhere if you don't filter for other lines that an ND YAG will put most, if not all of its power into 1064 nm. Maybe they just meant that was the predominant line, and there isn't anything more to it than that.
__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

03-01-2017, 10:49 AM #45
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,416 Rep Power: 1044866
CurtisOliver
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Haha. Need to edit.

1064nm is the predominant line, however it is possible to get the other lines without anything fancy otherwise we wouldn't have our 589 spartans. Just beam split the 1319 and split the 1064nm and combine them using a coated NLO crystal. It won't be as efficient as if you had one crystal lasing at both, but it should still work.
__________________
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

Which company should I buy from? By Sta

Wavelength to RGB Converter

03-01-2017, 11:21 AM #46
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

I'd sure like to have some 589nm power someday

What do you think those adjustable optics up top in the photo are for between the dichroic mirrors? Just for centering the beams?
__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

03-01-2017, 12:01 PM #47
 Class 3B Laser Join Date: Jun 2015 Location: Brentwood, England (Near London) Posts: 4,416 Rep Power: 1044866
CurtisOliver
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Wouldn't all of us here. If you have the money you can get 200mW+ in lab form.
They could be anything. Corrective optics, waveplates?
__________________
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

Which company should I buy from? By Sta

Wavelength to RGB Converter

03-01-2017, 01:50 PM #48
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: 561nm Yellow YAG (?) from Lumenis Varia Eye Laser

Maybe someone will give more ideas, or knows. If I get 589, I want more than 200 mw, I want 500 or a watt! OK, too damn expensive:

http://www.ebay.com/itm/589nm-500mW-...-/282008960341

Edit: adding a close up photo of them. Appears one of them is way out of alignment.

__________________

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.

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 Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

Last edited by Alaskan; 03-01-2017 at 03:32 PM.

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