5. Consider an InP LED in which the light output is tightly coupled to a step index optical fibre which has a refractive 1.40 for the outer cladding layer. If only 6% of the output power is able to couple into the optical fibre, calculate the refractive index of the fibre core, the numerical aperture and the acceptanc angle. What is the optical loss in decibels? If there is a small air-gap between the fibre core and the LED, calculate the optical power emitted into air as a percentage of the internal optical power for the device. The refractive index of InP is 3.3.

Q: Define the term Quadratic relationships?

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A: Starting with specified step  q1q2x2−x0=x1−x0

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Q: Q3) Find the solution of Laplace's equation in rectangular coordinate?

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Q: PART E

A: Vbhh

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.