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This sounds likely. Did the output power increase with the increase in input power? Perhaps someone more knowledgeable in the subject of electronics will be able to make an assessment regarding whether the power source might have caused a problem...

Yeah I've seen the alibaba sales and always ignore them. If it was possible to track down institutions that are buying them, it may be possible to find them in surplus... eventually. The other option is to just hand over the cash.

I'm sure I don't need to tell you not to hold your breath on that one. I was hoping nobody would come in here and post the product number. 🤫

1. The diode is being driven near or below lasing threshold if you are powering it with 3V and 20mA. When diodes are driven below their operating parameters, you often get weird looking beams. You will get a much nicer beam when you give it the power it needs. This diode is capable of exceeding...

I'll send you a PM

I forgot to upload photos but just added them. Also check edits to the text. I have a habit of leaving out details and filling them in after I post... See above.

I've got a bunch of custom labels. I have some in clear vinyl and others on white vinyl. I use the clear ones. I carefully write in the wavelength and power class with a permanent marker on the BACK of the sticker so the ink doesn't rub off. See the pictures. Version 1 doesn't have a space for...

Looks fake. I vote to send him to the gallows anyway.

Welcome. It's nice to see you're interested in some DIY. See you around...

If you're interested in lasers as a hobby, I suggest building one yourself. If you have access to some basic tools including a soldering station and a multimeter, you can make anything you want. My advice is to start with something safer than a high power blue. Speaking from experience, you...

Does anyone know what happened to the M462 diodes? These were my favorite of the multimode blues but I didn't buy enough of them. My last one was accidentally smushed during an act of brutal negligence. I've looked high and low but they seem to have disappeared. If anyone has a spare or two...

The least expensive and most compact solution is behavior modification. Jokes aside - I can't imagine a demand for optical isolators outside of industry and research.

No, this is something I've seen reported on the forum many times over the years, including the very old tech 650-660 nm diodes from DVD-RW drives. I've killed at least one red diode with a full reflection from a mirror (just to try it). It appears to be common with red diodes. I don't make a...

The diodes found in projector arrays are difficult to source. As some mentioned, you may be able to find data sheets for the entire array, which will contain some of the information you are looking for. For individual diode performance, if you take the empirical test data available from people...

Welcome, tony. Hope you find what you're looking for here!

Very cool. I've been looking out for these diodes for a few years and have never seen one show up anywhere before. You're lucky and I'm jealous! I use an LED light of ~365 nm for fluorescence photography (see my profile picture) and always wanted a laser in the UVA range! That's ok. I have...

These tiny drivers look cool. If you produce some and want to let go of a few, I'd like to try a couple (even if they don't have reverse polarity protection)! What's the input and output voltage range?

I'm having trouble understanding exactly what you are trying to accomplish. If, as you state in the second post, you are trying to prevent reflections back to the emitter, the obvious way is to use optics with anti-reflective coatings for the wavelength(s) you are using. This reduces the...

I see your point. Other sizes for NiMH batteries do exist but they can be hard to find. Also, since the voltage per cell is low, you will need more than one. Eneloops, as far as I know, are only made in the usual sizes (AAA, AA, etc.). While I do like NiMH for reliability, they definitely don't...

I agree that you won't find a commercially made product that matches the ideal outlined in the first post. However, fabricating one to specification is certainly possible. Waterproofing electronics is not difficult. The other "however," which is more important, in my opinion, is the practicality...