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 March 16th, 2015, 03:18 AM #1 Newbie   Joined: Mar 2015 From: Australia Posts: 5 Thanks: 0 A=10 times log(Pin/Pout)? Good day, I am not sure if logs belong here. Please excuse. In photonics, I am not sure what this means. A and P? Amps, Photons, Decibels? A = 10 times log(Pin/Pout) It is physics and maths, in relation to light and optic fibres and maybe attenuation. What is the eqauation for?
 March 16th, 2015, 03:31 AM #2 Senior Member   Joined: Apr 2014 From: Glasgow Posts: 2,157 Thanks: 732 Math Focus: Physics, mathematical modelling, numerical and computational solutions I don't know the answer to this, but a quick search of this equation in Google yielded some search results applicable to describing power output in decibels. See for example: http://www.wirelessapplications.com/...conv_Final.pdf I'm not sure why you would ever want to use this equation for photonics. Perhaps you have a microphone in your set-up that is converting sound to electrical signals to photons in an optic fibre?
 March 16th, 2015, 03:37 AM #3 Math Team     Joined: Jul 2011 From: Texas Posts: 3,002 Thanks: 1588
 March 16th, 2015, 08:54 AM #4 Newbie   Joined: Mar 2015 From: USA Posts: 1 Thanks: 0 Math Focus: http://downloadfullhdmovie2364.blogspot.com/2015/03/the-gunman-download-full-hd-movie.html The Gunman : Download Full HD Movie The Gunman : Download Full HD Movie Download Full HD Movie Free: The Gunman : Download Full HD Movie

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