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comment by thundara
thundara  ·  3145 days ago  ·  link  ·    ·  parent  ·  post: Self-sweeping laser could dramatically shrink 3D mapping systems

    My high school physics is seriously failing me here.

I went to look up regenerative oscillations and but after 10 minutes I still have only a vague understanding of what that even means.

    One of the problems with mounted sensors and cameras is the vibration that you get when you drive.

My thoughts too... Do they mount the current tech within a vibration-dampening device?





kleinbl00  ·  3145 days ago  ·  link  ·  

Basically, they've tuned the grid, the pumping frequency and the wavelength of the laser cavity so that it goes into harmonic oscillation. By doing this, they can alter the wavelength of the light that comes out the other side of the grating. It's pretty clever.

thundara  ·  3145 days ago  ·  link  ·  

Hmm, somewhat on par with my 10 minutes of not-so-thorough research... I guess I was confused as to why it was called "regenerative oscillation" and not the high-school-ese of "harmonic oscillation" and / or "constructive amplification"...