Answer to Question #14936 in Optics for tashi

Question #14936

When mean optical power launched into an 8 km of fiber is 120 mW, the output mean optical power is 3 microwatt. Determine:
(a) overall loss in dB
(b) single attenuation per kilometre

Expert's answer

a) losses=8*120*10^(-3)/3*10^(6)=32dB
b) 3/8*10^(6)=37.5dB/km

Learn more about our help with Assignments: Optics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. Determine the cut off wavelengh for step index fibre to exhibit single mode operation when the core
2. an object T is kept 60 cm in front of a plane mirror M.If the mirror is now moved 15 cm away from th
3. light ray enter from air to fiber the refrective index of air is 1,the refrective index of fiber is
4. the refrective indeces for core and cladding for step index fiber is 1.52 & 1.41 respectively. c
5. the power of a lens is +2.0 D. Find its focal length and state what kind of lens it is.
6. why a re-chargable batteries charging more faster than discharging? what mechanism occur while charg
7. How many orders of diffraction are visible and why?