515nm DPSS 150mW CW - Small Form Factor

I am not sure we will see any of these filter down to a hobbyist level of availability any time soon; however these sure do look ***y

Edit - my mistake for stating "this may be a contributing factor to the seeming recent demise of green HeNe production" - Trevor, thanks for keeping me on point
Quote:
Originally Posted by Trevor
The green HeNe line is 543.5nm. You're thinking of argon lasers - they're what's predominantly used to generate 514.5nm.

Trevor

Cobolt CW solid-state laser operates at 515 nm - Laser Focus World

Quote:
Cobolt AB, Swedish manufacturer of low-noise DPSS lasers, announces the release of a higher power model of its unique 515 nm solid-state laser. The Cobolt Fandango™, now available with up to 150 mW CW output power from the same small package, is not only perfectly suited for power demanding fluorescence analysis applications such as confocal microscopy, high-speed plate reading and single molecule analysis, but now with even higher output power, as a general all solid state alternative to bulky Ar+ gas lasers.

I'll wait the 515nm Diode

The green HeNe line is 543.5nm. You're thinking of argon lasers - they're what's predominantly used to generate 514.5nm.

Trevor

Honestly the recent demise of GreeNe production probably has more to do with cheap, durable, high beam quality 532 than anything else. I don't think 543.5 was ever used for anything more than an indicator, and 532 does that just as well.

I'm not entirely sure, though. Melles Griot still lists them, but JDSU does not. I know a few years earlier, JDSU discontinued their yellows and oranges, too.

But unless there's a specific use case for 543.5, I do think we'll see a 'cheap period' (read: now) and then it'll climb into the rarity zone.

In a way, the way things are going, I think we'll see more consolidation than new wavelengths in the future. Once there's a good RGB set for projectors, and whatever is taken care of as-needed in the medical dye (DNA) arena, i'm not sure we're going to see a lot of shades of green or yellow/orange, for example. There's just no real need for them; they happened in the past because that's what we could get.