i) A fiber has an optical loss of 0.3 dB/km. What is the optical loss of...
i) A fiber has an optical loss of 0.3 dB/km. What is the optical loss of a 150 km length of this fiber in units of dBs?
ii) If 1 mW of optical power at a wavelength of <lambda> = 1550 nm is coupled into this fiber, what will the output power be after 50 km?
Homework Answers
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i) A fiber has an optical loss of 0.3 dB/km. What is the optical
loss of...
A fiber has a loss of 0.5 dB/km at a wavelength of 1550 nm. How much...
A fiber has a loss of 0.5 dB/km at a wavelength of 1550 nm. How much power is transmitted through such a fiber (at a wavelength of 1550 nm) if the length of the fiber is 1 km, 10 km, or 100 km if 5 mW is coupled into the fiber?
A fiber has a loss of 0.5 dB/km at a wavelength of 1550 nm. How much...
A fiber has a loss of 0.5 dB/km at a wavelength of 1550 nm. How much power is transmitted through such a fiber (at a wavelength of 1550 nm) if the length of the fiber is 1 km, 10 km, or 100 km if 5 mW is coupled into the fiber?
A LAN uses a 500-ineter long optical fiber with a loss of 1.42 dB/km. If the...
A LAN uses a 500-ineter long optical fiber with a loss of 1.42 dB/km. If the input power is 8.6 mu W, what is the output power? 7.3 mu W 10.5 mu W 15.7 mu W 21.5mu W
1. You have 25 km of optical cable with an attenuation coefficient of 0.27 dB/km. What...
1. You have 25 km of optical cable with an attenuation coefficient of 0.27 dB/km. What is the total attenuation due to the cable? 3. Considering further question 1. If the power transmitted is 1 mW and the receiver sensitivity is -30 dBm what is the maximum distance of optical fiber that can be used before amplification is needed? You can assume only cable losses. 4. Considering further Question 3. What is the effect of adding connectors of loss 0.23...
Suppose you have the following optical network: - There are six connector or splice joints between the end to end points, with a loss of 0.04 dB each - The fiber has a 0.4 dB/km attenuation. - Each o...
Suppose you have the following optical network:
- There are six connector or splice joints between the end to end
points, with a loss of 0.04 dB each - The fiber has a 0.4 dB/km
attenuation.
- Each optical splitter has 1.5 dB insertion loss on top of the
power splitting loss.
a) What is the insertion loss of each splitter? (1 Marks)
b) What is the total loss between point A to point B, C, D and E?
(2...
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?...
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...
Problem 3 (25 points) A silicon photodetector has an internal photo responsivity of 0.5 A/Wt wavelength of 850 nm. When photons of wavelength 850 nm are incident normally on this photodetector, so...
Problem 3 (25 points) A silicon photodetector has an internal photo responsivity of 0.5 A/Wt wavelength of 850 nm. When photons of wavelength 850 nm are incident normally on this photodetector, some photons are reflected back and some photons penetrate to the detection region and are absorbed by the photodetector. (a) The index of refraction of silicon is 3.45. If the electric current measured by this photodetector is 20 mA, what is the incident optical power? (b) Silicon has a...
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...
Did you mean: a fiber optical communication link has a center wavelength of 1550 nm has a data ra...
Did you mean: a fiber optical communication link has a center wavelength of 1550 nm has a data rate of 40 Gbits per second, what is the spectral linewidth in term of optical frequency
A LAN uses a 500-ineter long optical fiber with a loss of 1.42 dB/km. If the input power is 8.6 mu W, what is the output power? 7.3 mu W 10.5 mu W 15.7 mu W 21.5mu W
Suppose you have the following optical network:
- There are six connector or splice joints between the end to end
points, with a loss of 0.04 dB each - The fiber has a 0.4 dB/km
attenuation.
- Each optical splitter has 1.5 dB insertion loss on top of the
power splitting loss.
a) What is the insertion loss of each splitter? (1 Marks)
b) What is the total loss between point A to point B, C, D and E?
(2...
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...
Problem 3 (25 points) A silicon photodetector has an internal photo responsivity of 0.5 A/Wt wavelength of 850 nm. When photons of wavelength 850 nm are incident normally on this photodetector, some photons are reflected back and some photons penetrate to the detection region and are absorbed by the photodetector. (a) The index of refraction of silicon is 3.45. If the electric current measured by this photodetector is 20 mA, what is the incident optical power? (b) Silicon has a...
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...
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