What is wrong with this design for an optical fiber cable? A cross sectional view of...
What is wrong with this design for an optical fiber cable? A cross sectional view of the proposed fiber optic cable is shown. The optical fibers have an index of refraction equal to 1.55 and the medium surrounding the fibers has an index of refraction equals to 1.60.
Homework Answers
Fiber cable works on the principle of total internal reflection for the waves traveling from the optic fiber to the surrounding medium.
The basic requirement for total internal reflection is that the first/originating medium must have higher index of rfraction than that of the surrounding medium.
But here its the opposite. So, this is wrong with the design.
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What is wrong with this design for an optical fiber cable? A
cross sectional view of...
Question 1 Select the correct statement(s) regarding fiber optic cable. a. The core and cladding within...
Question 1 Select the correct statement(s) regarding fiber optic cable. a. The core and cladding within a fiber optic cable must have the same refractive index in order to achieve TIR (Total Internal Reflection) b. Only single mode fiber (SMF) can be constructed with either a “step” or “graded index” core c. Mulimode optical fibers (MMF) are vulnerable to modal dispersion d. All statements are correct Question 2 Using a direct sequence spread spectrum (DSSS) technique spreads a narrow band channel...
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The core of an optical fiber has an index of refraction of 1.27 , while the index of refraction of the cladding surrounding the core is 1.15. What is the critical angle for total internal reflection at the core‑cladding interface?
The core of an optical fiber has an index of refraction of 1.29, while the index...
The core of an optical fiber has an index of refraction of 1.29, while the index of refraction of the cladding surrounding the core is 1.17. What is the critical angle for total internal reflection at the core-cladding interface? critical angle:
A fiber optic cable is submerged underwater. What is the critical angle of total internal reflection...
A fiber optic cable is submerged underwater. What is the critical angle of total internal reflection if the index of refraction of the cable and water is n cable=2.15 and n water=1.33? options in degrees: 15.12, 42.79, 38.21, 61.33
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Some biological systems can act like an optical fiber. Below is a drawing which illustrates how...
Some biological systems can act like an optical fiber. Below is a drawing which illustrates how this might occur. Imagine you have a long, thin cell surrounded by fluid with index of refraction 1.38. The average index of refraction inside the cell is 1.48. Compute the critical angle, theta_crit, for total internal reflection for this system. Show all of your computations. What will the angle of refraction be for ray A (shown below) that has an angle of incidence of...
(2 points) Optical fibers are made of glass, where light is trapped inside the fiber by...
(2 points) Optical fibers are made of glass, where light is trapped inside the fiber by total internal reflection. This example is not a fiber geometry and doesn't include the gradations in refractive index that are used, but still illustrates the point of total internal reflection. Suppose you have a piece of glass, with light incident from the glass side toward an air interface. The refractive index of the glass is 1.45. What is the critical angle where all light...
3- Consider a bare fiber consisting of core of refractive index 1.48 and having air as...
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...
The core of an optical fiber has an index of refraction of 1.29, while the index of refraction of the cladding surrounding the core is 1.17. What is the critical angle for total internal reflection at the core-cladding interface? critical angle:
11. A laser beam enters a fibre optic cable as shown in the cross-section below. The core of the cable has index of refrac- tion n2 and is surrounded by cladding with index of refraction n3. ni = 1.00 is the index of refraction of air. If 01 = 63.1° and 02 = 20.6°, what is the maximum value of n3 for which the beam undergoes total internal reflection and propagates down the cable? (ans. 2.37] n N₃ n, 2.82
Some biological systems can act like an optical fiber. Below is a drawing which illustrates how this might occur. Imagine you have a long, thin cell surrounded by fluid with index of refraction 1.38. The average index of refraction inside the cell is 1.48. Compute the critical angle, theta_crit, for total internal reflection for this system. Show all of your computations. What will the angle of refraction be for ray A (shown below) that has an angle of incidence of...
(2 points) Optical fibers are made of glass, where light is trapped inside the fiber by total internal reflection. This example is not a fiber geometry and doesn't include the gradations in refractive index that are used, but still illustrates the point of total internal reflection. Suppose you have a piece of glass, with light incident from the glass side toward an air interface. The refractive index of the glass is 1.45. What is the critical angle where all light...
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...
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