Reference no: EM13218313
A silica fiber has an outer diameter of 125 micro meter. What is the total volume of silica for a 1-km length? This fiber is wound on a spool whose unloaded diameter is 20 em. The spool height is 10 em. Compute the diameter of the fully loaded spool.
Consider an SI fiber with n1 = 1.5 and n2 = 1.485 at 0.82 micro meter. If the core radius is 50 micro meter, how many modes can propagate? Repeat if the wavelength is changed to 1.2 micro meter.
An SI fiber is single mode at 1.4 JLm but not at shorter wavelengths; n1 = 1.465 and n2 = 1.46. Compute the core radius. Find the number of modes at 0.8, 0.85, and 0.9 micro meter. (Hint: Use the mode chart.)
multimode fiber has an equilibrium length of 0.5 km. In the linear region, its pulse spread per unit length is 30 ns/km. The spread is due primarily to modal distortion. Plot the 3-dB electrical and 3-dB optical bandwidths versus fiber length for 0 to 5 km. Also plot the maximum RZ and NRZ data rates.
Find the total number of propagating modes in an SI fiber having a normalized frequency of 4.5 when the wavelength is 800 nm.
A fiber has an NA = 0.2588. A light source coupled to it emits 75% of its light into a 60° full-cone angle, 50% into a 30° cone, and 25% into a 15° cone. What is the coupling efficiency when this source and fiber are connected?
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For what range of values of a is the system stable
: For what range of values of a is the system stable?
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Major trends of the it industry
: Three major trends of the IT industry and importance to resources and leadership roles - Benefits of IT to business competition and ways to work
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From what distance must the electron be red
: From what distance must the electron be red if it is to just fail to strike the plate?
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Determine what is the value of a truckers life implied
: U.S. Trucking pays its drivers $40,000 per year, while American Trucking pays its drivers $38,000 per year. For both firms, truck drivers average 240,000 miles per year. For simplicity, assume both firms require driving 60 million miles each year.
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What is the total volume of silica
: A silica fiber has an outer diameter of 125 micro meter. What is the total volume of silica for a 1-km length? This fiber is wound on a spool whose unloaded diameter is 20 em. The spool height is 10 em. Compute the diameter of the fully loaded spo..
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What wage would the worker now need to earn in the a job
: Consider a competitive economy that has four different jobs that vary by their wage and risk level. The table below describes each of the four jobs. Job Risk ( r ) Wage ( w ) A 1/5 $3 B 1/4 $12 C 1/3 $23 D 1/2 $25 All workers are equally productiv..
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Find the shortest impulse response
: An analog signal xa(t), band-limited to 5 Hz, is sampled at a rate of 10 samples per second to give a discrete-time signal x(n) = xa(0.1n). The discrete-time signal x(n) is then filtered with an digital FIR filter, h.
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Can information on number of workers employed on risk
: Suppose a drop in the compensating wage differential between risky jobs and safe jobs has been observed. Two explanations have been put forward: Engineering advances have made it less costly to create a safe working environment.
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Find the probability that the tenth phone installed
: The probability that a person will install a black telephone in a residence is estimated to be 0.3. Find the probability that the tenth phone installed in a new subdivision is the fifth black phone.
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