Direct Green Laser Diode Technology Progress

madmacmo · 06-15-2011, 03:30 AM

500nm to 550nm Direct Green Laser Diode Development
This thread is intended for the collection of news and industry announcements for technological advancements and mass production plans for direct green laser diodes. Note the following catalog of web published articles sorted by the most recent first:

Aug 31, 2012
Meaglow: commercializing InGaN

Aug 2, 2012
SEMICONDUCTOR LASERS: Green laser diode emits at 536 nm

Jun 11, 2012
Smartphones Boost Projectors

May 31, 2012
MicroVision Receives >$4M Purchase Orders from Pioneer

May 30, 2012
LD Sales Listing - 60mW 510nm & 50 mW 520nm diodes

May 24, 2012
Scheduled WebCast - 15 June 2012 - Fundamentals of Photonics: Visible Green Lasers

May 15, 2012
Lasers – DGL, SHG, and Hybrid

May 14, 2012
Soothsayer 7: Microvision’s Obfuscations Causing a Buzzing Sound

May 9, 2012
The Display Playground: Microvision Official Blog - by Dawn Goetter
Sea of Green

May 8, 2012
Pioneer Introduces the New CYBER NAVI

May 7, 2012
Cyber Navi Video - uploaded by PioneerCorporationPR

May 3, 2012
Nichia 515nm 25mW Laser Diode Specs - Now Published
NDG1116-E.pdf [UTZ-SC0313_1] 2012/04/04

Apr 30, 2012
Soothsayer: Microvision’s Lance Evans “Green lasers alone are $200 each now”

Quote:

It is just going to take more than 2 year for the brilliant people at the laser manufactures to figure out how to make the direct green lasers at a cost point that will lead to mass adoption.

Dec 6, 2011
Karl Guttag on Technology » Welcome to Karl Guttag on Technology

Quote:

The question is when will [Direct] green lasers be sold at a price, with the right wavelength, and are bright enough that they can spin up the market. Based on my 34 years of semiconductor experience and reading the “tea leafs”, I would say it is more than two years away (and a lot of people who know more than me about lasers say it is going to be longer)

Dec 19, 2011
Insurance News - MICROVISION INC FILES (8-K) Disclosing Regulation FD Disclosure

Green laser diode production is cutting edge MEMS micro projector from joe spaz ymb | MVIS Message Board Posts

Karl Guttag on Technology » Diode Green Lasers (Part 1, Wavelength and Efficiency)

Dec 16, 2011
The Green Laser - Completing the Rainbow
Optics & Photonics News - September 2011

Dec 12, 2011 - They're Here
510nm Direct Green Diodes / Build Photos (DGH-N1, DGH-N2)

Dec 5, 2011
UCSB spin-off Soraa raises $88.6m
Semiconductor Today

Oct 27, 2011
Press Release/Nichia Corporation

Oct 25, 2011
MicroVision Announces Third Quarter 2011 Results - MarketWatch

Oct 17, 2011
NineSigma soliciting proposal (RFP 67572) for Direct Green Laser Technologies on behalf of Global Automotive Supplier . . . to be able to produce 5 million pieces per year
https://www.myninesigma.com/sites/public/_layouts/RFPs/NineSigma_RFP_67572.pdf

Oct 13, 2011
IEEE SCV-Photonics Chapter Meeting on Nov. 1 - KeyPoint Credit Union - San Jose Mercury News

Sept 13, 2011
VERTICAL-CAVITY SURFACE-EMITTING LASERS: Electrically pumped GaN-based VCSELs emit blue and green at room temperature - Laser Focus World

Aug 25, 2011
Optics & Photonics News - September 2011

August 23, 2011
TeraDiode Lands $3.2 Million in Defense-Related Contracts

August 23, 2011
Nanotechnology Now - Press Release: "Photonex 2011 - The Conference Programme is growing and online registration is now open: High power diode lasers & systems"

August 22, 2011
nLIGHT Raises $17.5 Million Investment to Accelerate Growth

August 15, 2011
New picosecond pulsed diode lasers at 500 nm and 510 nm by PicoQuant

July 21, 2011
MicroVision Announces Second Quarter 2011 Results

July 18, 2011
Soraa propels green lasers beyond 100 mW

July 13, 2011
Osram improves green laser performance

July 1, 2011
Laser Diode Module uses 515 nm green laser., Power Technology, Inc.
515nm 20mW IQ Green Laser Diode Module from Power Technology, Inc.

June 17, 2011
SPIE Newsroom :: Green lasers in action

June 17, 2011
PHOTONIC FRONTIERS: QUANTUM DOTS: Quantum dots address a range of new applications - OptoIQ

June 15, 2011
EpiCrystals sets sights on green laser ramp

June 15, 2011
Epicrystals Introduces New Green Laser Aimed at Pico Projectors | Picopros

June 13, 2011
Opus Microsystems unveils a direct-green-laser projector module, to be available by the end of 2011
Before It's News

Jun, 4, 2011
Direct Green Diode Lasers Mass-Produced - Omicron Laserage Laserprodukte GmbH (Photonics Spectra | Jun 2011 | FastTrack)

Mar 22, 2011
Laser+LCOS Technology Revolution
http://www.syndiant.com/pdfs/SID%202...Mei%2039-1.pdf

Dec 14, 2010
Osram set for green diode ramp in 2012

Nov 24, 2010
Sumitomo Electric Industries, Ltd. | Press Release (2010) Sumitomo Electric Announces Large Scale Production of the World?s First 2-inch Semipolar/Nonpolar GaN Substrates for Green Lasers.

Jul 8, 2010
Nichia to Start Sample Shipment of Green Diode Laser -- Tech-On!

Aug 13, 2009
Osram develops direct green-emitting laser diode - Laser Focus World

lazerman121 · 06-15-2011, 03:46 AM

Quote:

Originally Posted by madmacmo

Jun, 4, 2011
Direct Green Diode Lasers Mass-Produced - Omicron Laserage Laserprodukte GmbH (Photonics Spectra | Jun 2011 | FastTrack)

that video even tho off topic is really Interesting
take a look at 2:57 that's amazing.

madmacmo · 06-18-2011, 03:29 PM

Quantum Dots Emerging Technology - Pushing the Cutting Edge

Note the link added today in the catalogue listing above of the June 17th, 2011 article "Photonic Frontiers: Quantum Dots: Quantum dots address a range of new applications". Of note is the excerpt below:

Quote:

Bhattacharya’s group is tackling another difficult problem: direct diode lasers emitting green light for applications including picoprojectors and displays. It requires adding enough indium to InGaN diode lasers to shift the emission to the 530 nm range while maintaining good laser performance. Other developers are coming close with quantum-well lasers. Prospects for green quantum-dot lasers “were totally unexplored,” says Bhattacharya.

Now the group has succeeded in demonstrating the first electrically-pumped InGaN quantum-dot lasers. It grew self-organized quantum-dot laser heterostructures on the C plane of GaN substrates using the structure shown in Fig. 3a. Figure 3b compares the spectrum of pulsed laser emission at 524 nm, with 0.7 nm linewidth, to the broader fluorescence spectrum. In a paper in press at Applied Physics Letters, the group reports a threshold current of 1.2 kA/cm2 at 278 K, with slope efficiency 0.74 W/A, and wallplug efficiency of 1.1% at drive current of 1.3 kA/cm2.4 Those results are comparable to others reported earlier from quantum-well lasers.5

madmacmo · 07-15-2011, 09:06 PM

Osram improves green laser performance

Quote:

Exerpt:
According to [Uwe Strauss from Osram] the green source in a pico-projector producing a 100 lumen brightness must have:
) an emission wavelength of 515 nm
) an output power of at least 50 mW
) a wall plug efficiency of 5 percent or more
) and, in both the lateral and vertical directions, a single mode output
If a shorter wavelength source is used – for example, a 505 nm laser – the power output requirements are higher.

In the lab, Osram has exceeded these requirements. It's best lasers produce 70 mW at 522 nm with a wall plug efficiency of 5-6 percent, and have a spectral width of 1.8 nm. What's more, reliability – defined as the time taken for the operating current to increase by 30 percent – is more than 1000 hours.

News of a potential 70mw direct green diode is very tantalizing; however this announcement is of an "in the lab" advancement, where historically the time from R&D to manufacturing, then finally to market availability is most often many months to years.

Fenzir · 07-15-2011, 09:10 PM

I'm not too psyched about 522nm, but 515 will get my wallet running. From the articles I read there was a 25mw 515. Interesting stuff, nevertheless.

joeyss · 07-15-2011, 09:21 PM

515 should be amazing at night....peak visibility and the beam gets scattered more than 532. Maybe 505 would be even better for nighttime beams?

File:Rayleigh sunlight scattering.png - Wikipedia, the free encyclopedia

Fenzir · 07-15-2011, 09:22 PM

madmacmo · 07-22-2011, 03:27 AM

MicroVision announces agreement for in-vehicle PicoP head-up display with major car maker.

MicroVision Announces Second Quarter 2011 Results

Quote:

Continued advancement with Pioneer of the light source module based on direct blue, green, and red laser diodes and engine subsystems for the next-generation HD PicoP display engine. The HD PicoP display engine is expected to have the high performance, small size and attractive price required for high-volume automotive and consumer applications. It is expected to serve as the foundation for Pioneer's aftermarket HUD product planned for introduction in 2012.

madmacmo · 08-24-2011, 03:34 AM

Although this does not appear to portend a possible future laser pointer application, these are none the less interesting articles related to a new Wavelength Beam Combining (WBC) technology patented by TeraDiode
TeraDiode Lands $3.2 Million in Defense-Related Contracts

Quote:

TeraDiode's patented technology is based on a breakthrough in wavelength beam combining pioneered by TeraDiode co-founders Dr. Bien Chann and Dr. Robin Huang at MIT Lincoln Laboratory. This discovery made ultra high brightness direct diode lasers possible for the first time. TeraDiode holds the exclusive license for this technology from MIT and is building its own base of innovative intellectual property.

About TeraDiode
TeraDiode is the leader in developing direct diode laser technology for military and industrial applications. The company's technology, pioneered at MIT Lincoln Laboratory, has broken all records for combined power and beam quality from a direct diode laser. Most experts consider direct diode lasers to be the future of the laser industry. TeraDiode is backed by an investment from Stata Venture Partners. More information about TeraDiode can be found at http://www.teradiode.com

Another reference for TeraDiode and Wavelength Beam Combining
New technology increase potency of beam weapons | Homeland Security News Wire

Quote:

“At TeraDiode, we believe that direct-diode lasers using TeraDrive technology will, in time, replace fiber, disk and other lasers for the most demanding material processing applications,” the company says

madmacmo · 09-15-2011, 12:07 AM

Sept 13, 2011

VERTICAL-CAVITY SURFACE-EMITTING LASERS: Electrically pumped GaN-based VCSELs emit blue and green at room temperature - Laser Focus World

Quote:

Scientists at Nichia Corp. (Anan, Japan) have demonstrated the first electrically pumped indium gallium nitride/gallium nitride (InGaN/GaN)-based blue- and green-emitting vertical-cavity surface-emitting lasers (VCSELs).

Quote:

The blue VCSEL has a threshold current of 1.5 mA, a threshold voltage of 3.3 V, and emits 0.70 mW of continuous-wave (CW) light at 451 nm

Quote:

The green version has as 22 mA threshold current, a 6.3 V threshold voltage, and emits pulsed light with a peak power estimated to be greater than 0.80 mW at a 503 nm wavelength.

Quote:

Both lasers operate at room temperature. In general, VCSELs are low in cost when mass-produced; blue- and green-emitting versions could someday help bring small photonics devices such as laser picoprojectors into wide use.

madmacmo · 10-16-2011, 02:21 AM

BayAreaTech » Blog Archive » Mtg: Recent Advances in Green and Blue Laser Diodes Fabricated on Nonpolar/Semipolar GaN Substrates

Dr. James W. Raring, Vice President of Laser Engineering, Soraa Inc. to deliver Nov 1, 2011 keynote at Santa Clara, CA SCV Photonics Chapter dinner meeting.

Quote:

. . . we are entering a paradigm shift for projection displays that will require a massive deployment of GaN-based laser diodes. By combining direct green laser diodes with the already available red and blue laser diodes, a compact, highly-efficient, low-cost R-G-B laser-based light engine is realized to enable brilliant miniature displays with enhanced viewing flexibility.

Quote:

. . . Soraa is making rapid progress towards the commercialization of blue and green laser diodes with the demonstrations of the first true green (525nm) continuous wave laser diode and world-class power and efficiency from single-mode blue laser diodes.

532 with Envy · 10-16-2011, 02:36 AM

This is pretty exciting news, thanks for keeping us up on the progress.

Next up hopefully they throw 20 of them in some cheap projector

madmacmo · 10-16-2011, 03:18 AM

The down side to most of these recent major LD suppliers’ industry announcements is their apparent common R&D focus seems to be toward Pico DLPs, where the harvest costs will be painfully high to yield only a single sought after Green, a probably A140 range Blue, and a more than likely throw-away Red LED. It seems almost too much to hope for another C@$!0 like market entry DLP having a dozen or more harvestable direct green LDs.

532 with Envy · 10-16-2011, 03:22 AM

Hope springs eternal.

madmacmo · 10-16-2011, 03:43 AM

Quote:

Originally Posted by 532 with Envy

Hope springs eternal.

I agree and do remain hopeful; however it is frustrating to see so much hype about Pico DLPs as if they are going to be the next killer must have gadget.

madmacmo · 10-26-2011, 12:25 AM

MicroVision Announces Third Quarter 2011 Results - MarketWatch

Near the same text as was posted in their Second Quarter 2011 Results

Quote:

The third quarter was characterized by continued progress in the development of the next-generation HD PicoP display engine, including activities with Pioneer Corporation on the new light source module based on direct green, blue and red laser diodes as well as other key engine subsystems.

New and possibly noteworthy

Quote:

Early samples of the new HD PicoP engine have been built using direct green laser samples from three different manufacturers. One such sample was demonstrated earlier this month in a prototype of Pioneer's aftermarket automotive head-up display (HUD) at CEATEC Japan 2011. Pioneer has announced plans to introduce its PicoP-based HUD product in the first half of 2012.

madmacmo · 10-28-2011, 03:31 AM

Oct 27th, 2011
Press Release/Nichia Corporation

Quote:

Nichia Corpopration has succeeded in deleloping green GaN-based laser diode, will start its shipment from August. We confirmed that estimated life time 10,000 hours with the condition of 50mW in continuous-wave operation at 60°C, case temperature.

On a side bar, the Yahoo-Message-Boards-Microvision-Stock-Watch thread below makes for an interesting read . . .
Yahoo! Message Boards - Microvision Inc. - Nichia green laser diode samples 2010

Xer0 · 10-28-2011, 06:27 AM

years of green diodes only existing in theory, blue diodes at a cost of a brand new car...
...but once they want mass produce something with them, they become real and cheap

fu, economics. nobody thinks of us laser hobbyst

rhd · 10-28-2011, 12:42 PM

MicroVision sketches me out with their marketing tactics. I don't think they've actually innovated for ages now. I get news alerts for a number of laser related key words. Almost every week for the last year, MicroVision has released a "brand new" pico projector, with its own corresponding press writeup. However, when you actually look at each new product, you realize that it's the same "ShowWX+", but with support for XYZ different portable device. One week it's the iPod, the next week it's Blackberries, etc - which to the best of my knowledge has basically means a new SKU for a box with a different cable in it.

The company screams of desperation.

rhd · 12-06-2011, 08:09 PM

Just noticed this news:
Semiconductor Today

weeba2kv · 12-06-2011, 08:33 PM

They better effin hurry up with those demonstrated 4 watt blue laser diodes !!! stupid demonstrations WE WANT MORE !!!!!! power

flogged · 12-10-2011, 07:55 PM

Thanks for putting this topic together. I'm still waiting to add a green direct laser diode to my collection. It seems they've been talking about these devices for years now, however no diodes have been seen outside of paper/lab. I suspect they are more difficult to fabricate than is admitted to.

The most interesting new development (IMO) in the plethora of links you listed are the VCSEL constructs. Unfortunately they are very low power ( < 1 mW)

Any direct diode > 500 nm or < 620 nm is needed and very desirable.

madmacmo · 12-11-2011, 05:04 AM

@ flogged,

You are most welcome. With the seeming increasing frequency of direct green diode internet chatter, much like the parable of the optimistic child in the room full of horse poop, I keep thinking "There's got to be a pony in here somewhere" . . .

And as such I will keep posting relevant links as I and other LPFers come across further updates.

rhd · 12-11-2011, 05:25 AM

A great way to keep abreast of this kind of news, is to use Google news alerts. You can put in keywords, and once a day they'll send you any new news alerts that match your search. It seems to filter out news releases from generic boring search results.

madmacmo · 12-11-2011, 08:20 PM

rhd,

I am with you on the same page.

I have utilized Google Alerts since early on for this thread.

FYI - the alert list below that I have active at present:
505nm Laser
510nm Laser
515nm Laser
520nm Laser
5th Generation DLP
CNI Green Laser
direct green laser diode
Eagleyard Green Laser
HD pico DLP
Nichia Green Laser
Osram Green Laser
Soraa Green Laser

I would encourage others to do the same as there may be geographic and or other unknown search refining/filtering differences between individuals and locations.

07-15-2011, 09:10 PM	#5
Fenzir Class 2M Laser Join Date: Jan 2011 Location: UPENN, Pennsylvania Posts: 700 Rep Power: 11	Re: Direct Green Laser Diode Technology Progress I'm not too psyched about 522nm, but 515 will get my wallet running. From the articles I read there was a 25mw 515. Interesting stuff, nevertheless. __________________ So what if I'm back?

07-15-2011, 09:21 PM	#6
joeyss Class 2M Laser Join Date: Jul 2008 Location: Pennsylvania Untited States Posts: 664 Rep Power: 13	Re: Direct Green Laser Diode Technology Progress 515 should be amazing at night....peak visibility and the beam gets scattered more than 532. Maybe 505 would be even better for nighttime beams? File:Rayleigh sunlight scattering.png - Wikipedia, the free encyclopedia

07-15-2011, 09:22 PM	#7
Fenzir Class 2M Laser Join Date: Jan 2011 Location: UPENN, Pennsylvania Posts: 700 Rep Power: 11	Re: Direct Green Laser Diode Technology Progress __________________ So what if I'm back?

10-16-2011, 02:36 AM	#12
532 with Envy Class 3R Laser Join Date: Jun 2010 Location: Somewhere between Here and THere Posts: 1,492 Rep Power: 114	Re: Direct Green Laser Diode Technology Progress This is pretty exciting news, thanks for keeping us up on the progress. Next up hopefully they throw 20 of them in some cheap projector __________________ _______________________________________________ 337.1nm Home Built TEA Laser HeNe lasers a'plenty.Plus that nice one in the avatar 594nm Melles Griot HeNe 594nm Trius Engineering HeNe 405nm handhelds (diy) 445nm handhelds (diy) 473nm B&W Tek lab style 488nm.40mW Multi-Line Argon Ion laser.....(with thanks to Dave) 515nm Argon Ion laser 40mW 532nm lab style 100mW+handhelds (diy) 543nm Melles Griot HeNe 674nm lab style..500mW 808nm 40W FAP diode array Kimmon IK4123R-B Helium-Cadmium laser and matching power supply.(with great thanks to Event_Horizon!)(Non-working head...PM me if you have one or information)

10-16-2011, 03:18 AM	#13
madmacmo Banned Join Date: Dec 2009 Location: Oklahoma USA Posts: 756 Rep Power: 0	Re: Direct Green Laser Diode Technology Progress The down side to most of these recent major LD suppliers’ industry announcements is their apparent common R&D focus seems to be toward Pico DLPs, where the harvest costs will be painfully high to yield only a single sought after Green, a probably A140 range Blue, and a more than likely throw-away Red LED. It seems almost too much to hope for another C@$!0 like market entry DLP having a dozen or more harvestable direct green LDs. Last edited by madmacmo; 10-16-2011 at 03:18 AM.

10-16-2011, 03:22 AM	#14
532 with Envy Class 3R Laser Join Date: Jun 2010 Location: Somewhere between Here and THere Posts: 1,492 Rep Power: 114	Re: Direct Green Laser Diode Technology Progress Hope springs eternal. __________________ _______________________________________________ 337.1nm Home Built TEA Laser HeNe lasers a'plenty.Plus that nice one in the avatar 594nm Melles Griot HeNe 594nm Trius Engineering HeNe 405nm handhelds (diy) 445nm handhelds (diy) 473nm B&W Tek lab style 488nm.40mW Multi-Line Argon Ion laser.....(with thanks to Dave) 515nm Argon Ion laser 40mW 532nm lab style 100mW+handhelds (diy) 543nm Melles Griot HeNe 674nm lab style..500mW 808nm 40W FAP diode array Kimmon IK4123R-B Helium-Cadmium laser and matching power supply.(with great thanks to Event_Horizon!)(Non-working head...PM me if you have one or information)

10-28-2011, 06:27 AM	#18
Xer0 Class 2 Laser Join Date: Dec 2008 Posts: 464 Rep Power: 10	Re: Direct Green Laser Diode Technology Progress years of green diodes only existing in theory, blue diodes at a cost of a brand new car... ...but once they want mass produce something with them, they become real and cheap fu, economics. nobody thinks of us laser hobbyst __________________ sssSSSSssssSSS

10-28-2011, 12:42 PM	#19
rhd Class 4 Laser Join Date: Dec 2010 Location: Canada Posts: 6,695 Rep Power: 241	Re: Direct Green Laser Diode Technology Progress MicroVision sketches me out with their marketing tactics. I don't think they've actually innovated for ages now. I get news alerts for a number of laser related key words. Almost every week for the last year, MicroVision has released a "brand new" pico projector, with its own corresponding press writeup. However, when you actually look at each new product, you realize that it's the same "ShowWX+", but with support for XYZ different portable device. One week it's the iPod, the next week it's Blackberries, etc - which to the best of my knowledge has basically means a new SKU for a box with a different cable in it. The company screams of desperation. __________________ 405nm 950mW 12x DIY C3 Here 445nm 1,500mW Ancient 90 Year Old Here 473nm 70mW CNI GLP 488nm 20mW Coherent OPSL (en-route) 515nm 38mW DGH-N1 532nm 460mW "Dragon of Yore" Here 556nm 21mW PGL-III-C-556 Here X?Xnm 175mW PGL-RG Tri Colour Red+Green 589nm 70mW PGL-III-C with Clicky Mod 594nm 5mW Rigel-6 \| 594nm 5mW GLP 632nm 1mW "PortaHeNe" Here 635nm 500mW "Elder Beam" Here 658nm 315mW "Space Ray" DIY Build 685nm 35mW Diodes - Waiting for Build Time IR PORTABLES: 780nm 200mW "Pico Sniper Shot" Here \| 808nm 900mW DD "Power Certified" Handheld Last edited by rhd; 10-28-2011 at 12:45 PM.

12-06-2011, 08:09 PM	#20
rhd Class 4 Laser Join Date: Dec 2010 Location: Canada Posts: 6,695 Rep Power: 241	Re: Direct Green Laser Diode Technology Progress Just noticed this news: Semiconductor Today __________________ 405nm 950mW 12x DIY C3 Here 445nm 1,500mW Ancient 90 Year Old Here 473nm 70mW CNI GLP 488nm 20mW Coherent OPSL (en-route) 515nm 38mW DGH-N1 532nm 460mW "Dragon of Yore" Here 556nm 21mW PGL-III-C-556 Here X?Xnm 175mW PGL-RG Tri Colour Red+Green 589nm 70mW PGL-III-C with Clicky Mod 594nm 5mW Rigel-6 \| 594nm 5mW GLP 632nm 1mW "PortaHeNe" Here 635nm 500mW "Elder Beam" Here 658nm 315mW "Space Ray" DIY Build 685nm 35mW Diodes - Waiting for Build Time IR PORTABLES: 780nm 200mW "Pico Sniper Shot" Here \| 808nm 900mW DD "Power Certified" Handheld

12-06-2011, 08:33 PM	#21
weeba2kv Class 3R Laser Join Date: Sep 2010 Location: The netherlands Posts: 1,330 Rep Power: 24	Re: Direct Green Laser Diode Technology Progress They better effin hurry up with those demonstrated 4 watt blue laser diodes !!! stupid demonstrations WE WANT MORE !!!!!! power __________________ Working lasers are. 400mw 532nm cute 5mw 532nm 200mw 650nm 1mw 635nm HeNe 1.2-1.4watt 445nm

12-10-2011, 07:55 PM	#22
flogged Class 2 Laser Join Date: Jul 2007 Posts: 492 Rep Power: 34	Re: Direct Green Laser Diode Technology Progress Thanks for putting this topic together. I'm still waiting to add a green direct laser diode to my collection. It seems they've been talking about these devices for years now, however no diodes have been seen outside of paper/lab. I suspect they are more difficult to fabricate than is admitted to. The most interesting new development (IMO) in the plethora of links you listed are the VCSEL constructs. Unfortunately they are very low power ( < 1 mW) Any direct diode > 500 nm or < 620 nm is needed and very desirable.

12-11-2011, 05:04 AM	#23
madmacmo Banned Join Date: Dec 2009 Location: Oklahoma USA Posts: 756 Rep Power: 0	Re: Direct Green Laser Diode Technology Progress @ flogged, You are most welcome. With the seeming increasing frequency of direct green diode internet chatter, much like the parable of the optimistic child in the room full of horse poop, I keep thinking "There's got to be a pony in here somewhere" . . . And as such I will keep posting relevant links as I and other LPFers come across further updates.

12-11-2011, 05:25 AM	#24
rhd Class 4 Laser Join Date: Dec 2010 Location: Canada Posts: 6,695 Rep Power: 241	Re: Direct Green Laser Diode Technology Progress A great way to keep abreast of this kind of news, is to use Google news alerts. You can put in keywords, and once a day they'll send you any new news alerts that match your search. It seems to filter out news releases from generic boring search results. __________________ 405nm 950mW 12x DIY C3 Here 445nm 1,500mW Ancient 90 Year Old Here 473nm 70mW CNI GLP 488nm 20mW Coherent OPSL (en-route) 515nm 38mW DGH-N1 532nm 460mW "Dragon of Yore" Here 556nm 21mW PGL-III-C-556 Here X?Xnm 175mW PGL-RG Tri Colour Red+Green 589nm 70mW PGL-III-C with Clicky Mod 594nm 5mW Rigel-6 \| 594nm 5mW GLP 632nm 1mW "PortaHeNe" Here 635nm 500mW "Elder Beam" Here 658nm 315mW "Space Ray" DIY Build 685nm 35mW Diodes - Waiting for Build Time IR PORTABLES: 780nm 200mW "Pico Sniper Shot" Here \| 808nm 900mW DD "Power Certified" Handheld

12-11-2011, 08:20 PM	#25
madmacmo Banned Join Date: Dec 2009 Location: Oklahoma USA Posts: 756 Rep Power: 0	Re: Direct Green Laser Diode Technology Progress rhd, I am with you on the same page. I have utilized Google Alerts since early on for this thread. FYI - the alert list below that I have active at present: 505nm Laser 510nm Laser 515nm Laser 520nm Laser 5th Generation DLP CNI Green Laser direct green laser diode Eagleyard Green Laser HD pico DLP Nichia Green Laser Osram Green Laser Soraa Green Laser I would encourage others to do the same as there may be geographic and or other unknown search refining/filtering differences between individuals and locations. Last edited by madmacmo; 12-11-2011 at 08:20 PM.

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