- Sep 20, 2013
Photo sensors are normally used for low power lasers. Are you sure this is good to 20 watts? Yes, they are fast.
Ah I think that must be what they are saying. So yeah there are normal window versions and also ones with fiber couple adaptors.I wonder if they make a fiber coupled cap similar to this?
A can would keep the diode facet clean, if you burn that, it's done, if you burn the window you have another chance to use it, if de-canned.
Gee is that a fiber coupled IR laser? Sure looks like the beams separate out again after some distance. I'll send you the link of this oddly configured diode through PM in a moment. But since it's a Chinese seller, be prepared for some things to get lost in translation.I've wanted to try feeding fibers from three 1 watt green diodes bundled together at the focal length of a large lens for a long time now, if they indeed do offer that I might try it. The beam pattern would not be pure (edit: not that it would be anywhere near so with a single MM diode), but might be worth it. Not sure how well that might work out because even with professional fiber combined outputs fused closely together much closer than I could make three individual fibers combine, the beams separate in the far distance even then, they are parallel, but clearly seen as distinct beams at the end of a sky shot, as you can see in the photo, below.
Regardless, I believe it might be possible as a hobbyist to get the beams far closer together with individual fibers than a knife edge. Even if aligning the fiber output angles would be tedious when bundled as tightly together as I can get the ends, I'd like to try. Might not work out, but if it does
808 nm FAP800 IR output.
There are tons of stuff to be found on taobao. However, it is always risky to buy there as warranty is a PITA. For being a modded diode, I think 560RMB is a good price, just a tad more than the original NUGM03.I translated that page to show the same thing you found, two configurations, with a simple window and with a fiber coupling. I will reach out to them and see if they might understand I would like a photo of the latter. There are lots of fiber coupled offerings on the market for green, but nothing cheap. Maybe if these Chinese diodes are cheap, I will get what I pay for, but might be OK. You can google 520 nm fiber coupled diode and find lots of products, but so far I have not found any high power diodes for green.