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Can cheaper lasers handle short distances?

(semiengineering.com)
46 points PaulHoule | 3 comments | 27 Aug 25 16:28 UTC | HN request time: 0.71s | source
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porphyra ◴[31 Aug 25 00:18 UTC] No.45079194[source]▶
I am a big VCSEL fan. It makes tons of sense to have a laser that you can manufacture at chip scale. I think that VCSEL and SPAD technology is promising in both telecommunications and lidar. History tells us that the cheaper technology gets better faster than the expensive technology gets cheaper.
replies(1): >>45083941 #
1. bobmcnamara ◴[31 Aug 25 15:29 UTC] No.45083941[source]▶
I wish the prototype human visible ones would reach production soon.
replies(1): >>45085003 #
2. porphyra ◴[31 Aug 25 17:26 UTC] No.45085003[source]▶
Imagine a display where each pixel has a red, green, and blue VCSEL. it would be even better than a microLED display!
replies(1): >>45093206 #
3. bobmcnamara ◴[01 Sep 25 15:02 UTC] No.45093206[source]▶
Imagine laser pointers mountable to any flat surface!