From: jl@glen--canyon.com   
      
   On Sat, 6 Dec 2025 13:06:18 -0800, wmartin  wrote:   
      
   >Greetings,   
   >Just musing here. How might I couple a fiber optic cable to the optical   
   >window on a Lidar chip? Wondering if it's possible to do Lidar through a   
   >twisty path, like routed around an arbitrary light blocking "thing". Are   
   >there going to be intractable reflections at one or both ends of the   
   >fiber? I do have a use for this if it is possible...   
   >Regards,   
   >Bill M.   
      
   If the lidar chip has a window, and the beam is expanded to some   
   modest diameter, you'd need a lens to get any amount of useful   
   coupling.   
      
   Got a link to the part?   
      
   There are lots of cheap OTDRs around, so there must be   
   fiber-compatible parts.   
      
      
   John Larkin   
   Highland Tech Glen Canyon Design Center   
   Lunatic Fringe Electronics   
      
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