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Beautiful laser. Can you measure how narrow of wavelength it outputs? I've never had a DPSS blue, but you're right that the beam specs offer something special over a blue diode.

Can you share any specs about the diode? Do you have a laser power meter?

With the right 780nm power dot, even the human eye sees it fine in daylight, and most camera sensors are over-exposed by it. :) Even 1064nm rayleigh scatter can be dazzling bright to a human eye (at least my own are overwhelmed). The radiated area may be destroyed depending on its boiling...

Have you tried slowly rotating the fibers pumping the crystals to find an angle they couple power best into the crystals?

Omg drool!!!!! If you ever decide to sell that beauty.... wow! I know the rgb monitor screen can never recreate the wavelength, but it looks so much more yellow than my 571nm. That is one of the most spectacular beams I've ever seen. What a beautiful laser my friend, looks good to go for CW...

You can just buy the dots already made in a rainbow of wavelength options if you want to play with them my friend. https://www.sigmaaldrich.com/US/en/search/quantum-dots?focus=products&page=1&perpage=30&sort=relevance&term=quantum%20dots&type=product

I also would love to buy one if you have one left.

I was so excited for this to be real and to buy one.... Other QD emissions devices are a bit broad on wavelength spectra, I would expect this to be limited in frequency by the manufacturing precision of the QD geometry and material consistency.

One more tip for Raman, the laser is the most easy part. The hard part and art is in your tricks to block the Raleigh scattered light from blowing out your Raman signal. I started out using dielectric notch filters, but the cost a fortune and never performed well for me. You want a series of...

Also, keep in mind, 650nm can definitely still drive heavy PL emissions that will block out your signal completely depending on the sample you're measuring.

I'm fussy about how narrow the excitation lasers mode happens to be. Many diodes give you a second and third frequency content very near to your excitation wavelength, and it makes all your Raman output data ambiguous to see real double Raman lines vs the excitation noise. I experiment with...

Still very interested to trade if the 589nm will lase.

I powered it from an power supply to be able to measure and adjust current easily. You can also power it from its own laser and fan driver board, but it will max current around 1.5Amps, and it wants to see ~3.1Amps to peg out my watt meter.

Thats with the sensor about 15mm above the output lens. The multiplier for this wavelength is about 1.2x, or ~42mW In this shot its just sitting on the output face and will peg-out my 40mW meter (*1.2 = 47mW) 47mW is as hard as its ever been driven, and may output higher but I would need a...

Sounds good to me, I'm not fussy about looks or warmup time.

I love a TEM00 beam, but reaching 10mW isn't important to me, even 2mW is plenty. Can I confirm it will lase without me taking it apart and aligning crystals? (even if it takes 10sec to reach full power).

The finicky 589nm pen pen is a fair trade to me. Stoked to finally have a 589nm. It's definitely low power because I turned the trim pot all the way down, but my laser power meter only goes to 30mW to be able to validate it higher than that for you. It was sold as a claimed "50mW" but I can't...

The camera and your screen only has RGB so it looks more green in images. To your eye its a green-yellow look. Will do over 30mW steady, haven't tried getting more power, its operated turned down to 0.5mW output after a few days of getting it, and its never been opened or disassembled. I'm also...

I have a working 571nm lasence module with TTL driver/fan, but I love it and money doesn't entice me much anymore. However, I enjoy trades, and I'm highly interested in the 580nm to 627nm region of your laser list. I'm not a laser power monger, but I am a bit mode snobby.

I'm extremely interested in your optics to generate that low divergence. Can you share info to buy the FAC corrected red laser diodes?