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Fiber Bragg Gratings A fiber Bragg Grating is written in a fiber (n = 1.5) with a strength k = 2cm-1 and length L= 2 cm at λ = 1550nm.
a) What is the bandwidth of the grating in nm?
b) What is the Reflectivity (in %) and Transmission (in dB)?
c) If this grating were written in birefringent fiber where the difference in refractive index for the two polarizations, Δn = 10-3, what is the separation in grating wavelengths for the two polarizations?
d) Will this grating be any good for filtering unpolarized light?
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
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Three objects are connected on the table as shown in Figure P5.44. The table is rough and has a coefficient of kinetic frictionof 0.350. find the acceleration of each object and their directions
Conservation of momentum means that m1v1i + m2v2i = m1v1f +m2v2f. Obtain the time do you need to use a kinematics equation
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A speedboat moving at 33.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of ?3.20 m/s2 by reducing the throttle. (a) How long does it take the boat to reach the buoy? (b)What is the velocit..
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A generator uses a coil that has 210 turns and a 0.20-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. assume that each turn of the coil is a square (an approximation), conclude the length of wire f..
Assume a black hole were to suck up a massive amount of surrounding oxygen and hydrogen. Would this ignite inside the black hole and turn it back into a star?
A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Determine the average angular speed (in rad/s) of this pulsar
We can use 30kJ of work from a heavy-duty pushing robot that can apply different constant forces. Draw a free-body diagram for the freigh
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