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
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Did you mean: a fiber optical communication link has a center wavelength of 1550 nm has a data ra...
8. A 1550 nm optical link uses a standard single-mode fiber with dispersion parameter of 4 ps/nm/km (Chromatic Dispersion), and a laser source with a linewidth of 0.5 nm. Assuming the link carrier is...
8. A 1550 nm optical link uses a standard single-mode fiber with dispersion parameter of 4 ps/nm/km (Chromatic Dispersion), and a laser source with a linewidth of 0.5 nm. Assuming the link carrier is a 10 Gbits/s binary signal, estimate the maximum length of optical fiber required before dispersion compensation is required. (Assume the maximum spread is half the time interval between each bit).
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...
Will Rate! For design of a 10 Gigabits per second fiber optical communications system using a...
Will Rate! For design of a 10 Gigabits per second fiber optical communications system using a single mode semiconductor laser at 1550nm wavelength, a photodetector, and a single mode optical communication fiber. The spectral line-width of the semiconductor laser is 10 pm. The Fiber length is 150km. a. What is the dispersion requirement for the optical fiber? [Hint: find out the requirement for dispersion coefficient at 1550nm] b. What is the requirement for the response time of the photoconductor?
2. A digital optical fiber link employing ideal binary signaling at a rate of 50 Mbps operates at a wavelength of 1.3 um. The detector is a germanium photodiode which has a quantum efficiency of...
2. A digital optical fiber link employing ideal binary signaling at a rate of 50 Mbps operates at a wavelength of 1.3 um. The detector is a germanium photodiode which has a quantum efficiency of 45% at this wavelength. An alarm is activated at the receiver when the bit error rate drops below 10. Calculate the theoretical minimum optical power required at the photodiode in order to keep the alarm inactivated. Comment briefly on the reasons why in practice the...
The ultraviolet light that causes suntans (and sunburns!) has a typical wavelength of 300 nm What...
The ultraviolet light that causes suntans (and sunburns!) has a typical wavelength of 300 nm What is the frequency of these rays? What is the fundamental frequency for a 58 cm banjo string if the speed of waves on the string 460 m/s? A tuning fork has been damaged and its frequency slightly changed. What could its altered frequency be if it produces two beats per second with a tuning fork that is known to vibrate at 424 Hz? You...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. (a) Find the probability that an individual woman has a pregnancy shorter than 259 days. (b) If 36 women are randomly selected, find the probability that they have a mean preg- nancy shorter than 259 days. (c) There should be a difference in your method for the previous two questions. Explain what you did differently for each problem and...
objective question What is the mode and the mean for the following set of numbers? {4,9,8,2,16,4,4,8,9,6}...
objective question
What is the mode and the mean for the following set of numbers? {4,9,8,2,16,4,4,8,9,6} O A. Mean = 7, mode =8 O B. Mean = 7, mode =4 O C. Mean = 6, mode =8 O D. Mean = 8, mode =9 You are conducting a survey of the people of the United Kingdom to find out how popular the racket sports are. You randomly choose people to call, and make 1,000 phone calls to people scattered across...
please answer all pre-lab questions 1 through 5. THANK YOU!!! this is the manual to give...
please answer all pre-lab questions 1 through 5. THANK YOU!!!
this is the manual to give you some background.
the pre-lab questions..
the pre-lab sheet.
Lab Manual Lab 10: String Waves & Resonance Before the lab, read the theory in Sections 1-3 and answer questions on Pre-lab Submit your Pre-lab at the beginning of the lab. During the lab, read Section 4 and follow the procedure to do the experiment. You will record data sets, perform analyses, answer questions, and...
What kind of instruments were used in the study? Did it clearly link to the research...
What kind of instruments were used in the study? Did it
clearly link to the research question? (One paragraph
minimum)
Page Organlzation of Hospital Nursing and 30-day Readmissions In Medicare Patlents Undergoing Surgery Chenjuan Ma, PhD National Database of Nursing Quality Indicators, University of Kansas School of Nursing 3901 Rainbow Bvd, M/S 3060 Kansas City, KS 66160, USA Matthew D McHugh, PhD, and Center for Heath Outcomes and Palcy Research University of Pennsyivania School of Nursing 418 Cune Bivd., Fagin...
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...
2. A digital optical fiber link employing ideal binary signaling at a rate of 50 Mbps operates at a wavelength of 1.3 um. The detector is a germanium photodiode which has a quantum efficiency of 45% at this wavelength. An alarm is activated at the receiver when the bit error rate drops below 10. Calculate the theoretical minimum optical power required at the photodiode in order to keep the alarm inactivated. Comment briefly on the reasons why in practice the...
The ultraviolet light that causes suntans (and sunburns!) has a typical wavelength of 300 nm What is the frequency of these rays? What is the fundamental frequency for a 58 cm banjo string if the speed of waves on the string 460 m/s? A tuning fork has been damaged and its frequency slightly changed. What could its altered frequency be if it produces two beats per second with a tuning fork that is known to vibrate at 424 Hz? You...
objective question
What is the mode and the mean for the following set of numbers? {4,9,8,2,16,4,4,8,9,6} O A. Mean = 7, mode =8 O B. Mean = 7, mode =4 O C. Mean = 6, mode =8 O D. Mean = 8, mode =9 You are conducting a survey of the people of the United Kingdom to find out how popular the racket sports are. You randomly choose people to call, and make 1,000 phone calls to people scattered across...
please answer all pre-lab questions 1 through 5. THANK YOU!!!
this is the manual to give you some background.
the pre-lab questions..
the pre-lab sheet.
Lab Manual Lab 10: String Waves & Resonance Before the lab, read the theory in Sections 1-3 and answer questions on Pre-lab Submit your Pre-lab at the beginning of the lab. During the lab, read Section 4 and follow the procedure to do the experiment. You will record data sets, perform analyses, answer questions, and...
What kind of instruments were used in the study? Did it
clearly link to the research question? (One paragraph
minimum)
Page Organlzation of Hospital Nursing and 30-day Readmissions In Medicare Patlents Undergoing Surgery Chenjuan Ma, PhD National Database of Nursing Quality Indicators, University of Kansas School of Nursing 3901 Rainbow Bvd, M/S 3060 Kansas City, KS 66160, USA Matthew D McHugh, PhD, and Center for Heath Outcomes and Palcy Research University of Pennsyivania School of Nursing 418 Cune Bivd., Fagin...
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