2. You have a spool of optical fiber with 8 µm core diameter. ncore = 1.468....
2. You have a spool of optical fiber with 8 µm core diameter. ncore = 1.468. ncladding = 1.464.
(a) [2.5 pts] Calculate the V-number assuming operation at λo = 1550 nm (a through d)
(b) [2.5 pts] Calculate the cut-off wavelength
(c) [2.5 pts] Calculate the numerical aperture
(d) [2.5 pts] Calculate the maximum acceptance angle
Homework Answers
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2. You have a spool of optical fiber with 8 µm core diameter.
ncore = 1.468....
a step index fiber with large core diameter compared with the wavelength of the transmitted light...
a step index fiber with large core diameter compared with the wavelength of the transmitted light has an acceptance angle in air of 22 and a relative refractive index difference of 3%.Estimate the numerical aperture and the critical angle at the core-cladding interface for the fiber
6. An optical fiber has an acceptance angle of 10.95 degrees. What's the numerical aperture for...
6. An optical fiber has an acceptance angle of 10.95 degrees. What's the numerical aperture for this fiber? A. 0.16 B. 1.02 C. 0.27 D. 0.19 7. An optical fiber has a core refractive index of 1.495 and a cladding refractive index of 1.47. What's the acceptance angle for this fiber? A. 13.11° B. 0.272° C. 9.79° D. 15.80° 8. While traveling through a cable, a signal loses 18.7 percent of its original power. What's this loss expressed in dB?...
1. (a) A laser beam enters an optical fiber with an incident angle of 6max as...
1. (a) A laser beam enters an optical fiber with an incident angle of 6max as shown in Figure 1. Its corresponding refracted light is subsequently incident on the boundary between the core and the cladding whose refractive indices are ni and n2, respectively. The second incident angle satisfies the critical angle, 0c, for total internal reflection. Derive the Numerical Aperture (NA) of the fiber that dictates the maximum acceptance angle, amax. (6 Marks) ec Core ni 0max Cladding n2...
EXERCISE 1.3-2 Numerical Aperture of the Graded-Index Fiber. Consider a graded-index fiber with the index profile...
EXERCISE 1.3-2 Numerical Aperture of the Graded-Index Fiber. Consider a graded-index fiber with the index profile in (1.3-12) and radius a. A tay is incident fro a nto te fibe a its center, making an angle with the fiber axis (see Fig. 1.3-8). Show, in the paraxial Figure 1.3-8 Acceptance angle of a graded-index optical fiber approximation, that the numerical aperture is Numerical Aperture (Graded-Index Fiber) where ea is the maximum angle for which the ray trajectory is confined within...
A step index fibre has a numerical aperture of 0.16, a core refractive index of 1.45...
A step index fibre has a numerical aperture of 0.16, a core refractive index of 1.45 and a core diameter of 90 mm. Calculate: 1. The refractive index of the cladding. 2. The acceptance angle θm and the confinement angle θ 0 m. 3. The approximate number of modes with a wavelength λ = 0.9 µm that the fibre can carry.
1. A fiber that supports many optical wavegui modes 2. Ration of the speed of light...
1. A fiber that supports many optical wavegui modes 2. Ration of the speed of light in free space to its speed in a given material 3. Light extending from 680 nm up to the wavelenghts of the microwaves 3 Matching questions A. Stretching of received pulse width because of multiple paths taken by the light Graded-index Fiber 2Single-Mode Fiber B. Fiber cables with core diameters of about 7-10 um light follows a single path 3. Pulse Dispersion C. the...
Graded-index plastic optical fibre (GI POF) is expected to be used for high- speed local area...
Graded-index plastic optical fibre (GI POF) is expected to be used for high- speed local area networks (LANS) because of its large core which allows for low cost and easy installation. A particular GI POF has a core diameter of 200um, a maximum core index of 1.500 and a numerical aperture of 0.30. 2.c.i 2.c.ii What is the maximum acceptance angle for this fibre? [2 marks] What is the refractive index of the cladding material for this fibre? 12 marks/...
Photonics and Optical Revision Sheet 1 1. Caculate the photon energy in eV for a wavelength of 1....
Photonics and Optical Revision Sheet 1 1. Caculate the photon energy in eV for a wavelength of 1.55 um 2, A 1.55 μm digital communications system operating at 4 GBits/s receives an average power of -24 dBm at the detector. On the assumption that 1 and 0 bits are equally likely to occur how many photons are received within each 1 bit? 3. A1.3 um digital communications system operating at 3 GBits/s receives an average power of -29 dBm at...
need Answers for c & d only. Everthing else is good. need answers for d &...
need Answers for c & d only. Everthing else is good.
need answers for d & e only. Not c. Thank you
11:14 AM Wed Jun 19 71% Problem1: Fiber Optics different optical loss (attenuation) sources a) Provide six extrinsic sources) of an optical fiber system. b) Sketch and briefly explain the Total Internal Reflection (TIR) phenomenon. c) What is the difference between a step index fiber and a graded index fiber? (Hint: Consider the ray tracing of different modes...
1. The inner core of an optical fiber has a diameter of 0.1 mm and an...
1. The inner core of an optical fiber has a diameter of 0.1 mm
and an index of refraction of n1 = 1.5. The outer core
of the fiber has an index of refraction of n2 =
1.49.
12 = 1.49 ni = 1.5 n2 = 1.49 (a) (7 points) Coming from air, what is the largest angle relative to the aris of the fiber for which light is totally internally reflected in the fiber? (b) (6 points) I want...
1. (a) A laser beam enters an optical fiber with an incident angle of 6max as shown in Figure 1. Its corresponding refracted light is subsequently incident on the boundary between the core and the cladding whose refractive indices are ni and n2, respectively. The second incident angle satisfies the critical angle, 0c, for total internal reflection. Derive the Numerical Aperture (NA) of the fiber that dictates the maximum acceptance angle, amax. (6 Marks) ec Core ni 0max Cladding n2...
EXERCISE 1.3-2 Numerical Aperture of the Graded-Index Fiber. Consider a graded-index fiber with the index profile in (1.3-12) and radius a. A tay is incident fro a nto te fibe a its center, making an angle with the fiber axis (see Fig. 1.3-8). Show, in the paraxial Figure 1.3-8 Acceptance angle of a graded-index optical fiber approximation, that the numerical aperture is Numerical Aperture (Graded-Index Fiber) where ea is the maximum angle for which the ray trajectory is confined within...
1. A fiber that supports many optical wavegui modes 2. Ration of the speed of light in free space to its speed in a given material 3. Light extending from 680 nm up to the wavelenghts of the microwaves 3 Matching questions A. Stretching of received pulse width because of multiple paths taken by the light Graded-index Fiber 2Single-Mode Fiber B. Fiber cables with core diameters of about 7-10 um light follows a single path 3. Pulse Dispersion C. the...
Graded-index plastic optical fibre (GI POF) is expected to be used for high- speed local area networks (LANS) because of its large core which allows for low cost and easy installation. A particular GI POF has a core diameter of 200um, a maximum core index of 1.500 and a numerical aperture of 0.30. 2.c.i 2.c.ii What is the maximum acceptance angle for this fibre? [2 marks] What is the refractive index of the cladding material for this fibre? 12 marks/...
Photonics and Optical Revision Sheet 1 1. Caculate the photon energy in eV for a wavelength of 1.55 um 2, A 1.55 μm digital communications system operating at 4 GBits/s receives an average power of -24 dBm at the detector. On the assumption that 1 and 0 bits are equally likely to occur how many photons are received within each 1 bit? 3. A1.3 um digital communications system operating at 3 GBits/s receives an average power of -29 dBm at...
need Answers for c & d only. Everthing else is good.
need answers for d & e only. Not c. Thank you
11:14 AM Wed Jun 19 71% Problem1: Fiber Optics different optical loss (attenuation) sources a) Provide six extrinsic sources) of an optical fiber system. b) Sketch and briefly explain the Total Internal Reflection (TIR) phenomenon. c) What is the difference between a step index fiber and a graded index fiber? (Hint: Consider the ray tracing of different modes...
1. The inner core of an optical fiber has a diameter of 0.1 mm
and an index of refraction of n1 = 1.5. The outer core
of the fiber has an index of refraction of n2 =
1.49.
12 = 1.49 ni = 1.5 n2 = 1.49 (a) (7 points) Coming from air, what is the largest angle relative to the aris of the fiber for which light is totally internally reflected in the fiber? (b) (6 points) I want...
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