. A light signal is traveling through a fiber. What is the delay in the signal if the length of the fiber-optic cable is 1.5 Km (assume a propagation speed of 3 x 108 m/s)?
delay = length of the cable / speed of the signal = 1.5 km / 3*10^8 m/s = 1.5*1000 m / 3*10^8 m/s = 0.5 * 10^-5 seconds = 0.005 * 10^-3 seconds = 0.005 milli-seconds Answer: 0.005 milli-seconds
. A light signal is traveling through a fiber. What is the delay in the signal...
Data is carried by pulses of light through long, transparent fibers—fiber optic cables. Long lengths of fiber carry signals 100 km between amplifier stations. How long does it take a signal to travel this distance if the index of refraction of the fiber is 1.45?
3- Consider a bare fiber consisting of core of refractive index 1.48 and having air as cladding What is its NA? What is the maximum incident angle up to which light can be guided by the fiber? 4- Consider a fiber from which cladding is removed over a short length as shown below. Assume that the core and cladding refractive indices are 1.5 and 1.4 respectively, What ill happen to the output power if the bare portion of the fiber...
A fiber manufacturer specifies a PMD coefficient of 0.05 ps km-1/2. (a) What is the average Differential Group Delay, DGD, after transmission through 200 Km of this fiber. (b) What is the average pulse spread after transmission through 200 Km of this fiber. (c) What is the estimate for maximum Bitrate of data that can be transmitted through this fiber if the only dispersion mechanism was PMD? (c) What is the bit period for 10 Gb/s of data? (d) If...
Electric and Magnetic Field of Light There is a light wave traveling through a vacuum with an Magnetic Field that has a peak value of By - 5.50 x 10 What is the value of the peak of the electric field (Eol? Make sure to put units with your answer as well as appropriate significant figures Your Answer Answer units Pressure and Intensity The Sun has a power of P-3.85 x 1026 Watts. The Earth is a distance of ſon...
True or False questions (1 point each) distance applications, including telephone and tber is typically used for long- cable television of the signal is caused by the fiber itself or impurities in the fiber such as water 2. Absorption or metals In a classful Class B Network, the default network mask used is /24 3. Data communications deals with the transmission of signals in a reliable and efficient 4. manner. Delay distortion occurs because the velocity of propagation of a...
Part A: Optical fibers allow the fast transmission of vast amounts of data. In one type of fiber, the wavelength of transmitted light is 6700 nm. What is the frequency of the light? Express your answer to two significant figures and include the appropriate units. Part B: Fiber optic cable is available in 12 km lengths. How long will it take for a signal to travel that distance assuming that the speed of light in the cable is the same...
true and false questions True or False questions (1 point each) 1. Single Mode fiber is typically used for long-distance applications, including telephone and cable television Absorption of the signal is caused by the fiber itself or impurities in the fiber such as water 2. or metals In a classful Class B Network, the default network mask used is /24 3. Data communications deals with the transmission of signals in a reliable and efficient 4. manner Delay distortion occurs because...
If the index of refraction of glass for red light is 1.45, what is the speed of a photon in the glass? a. 2.07 x 108 m/s b. 4.35 x 108 m/s c. 300,000 km/s d. 3 x 108 m/s
Explain how a microwave signal can be transmitted over an optical fiber rather than over a conventional coaxial cable or through-the-air link. What are the advantages of the microwave-over-fiber link?
Consider a step index single mode fiber with a length of 100km. The core index being 1.46, and the cladding index 1.45 and a loss of .20dB/km at a wavelength of 1550nm. The dispersion coeffcient of this fiber at 1550nm is D = 1.5. For a high speed data with .8nm spectral width what is the group velocity delay?