18 Questions 40 Answers 0 Followers
Questions related from Stevan Hilarius
I have a question. As I read in many books, they said that optical transmission is having so many advantages, one is "less (free from) interference". And as we know, light is an electromagnetic...
08 August 2013 2,085 7 View
I want to ask what is the meaning of these parameters : 1. What is Numerical Aperture? Why is it a dimensionless number? 2. What is Normalized Frequency? What is the reference to divide a...
04 August 2013 3,668 7 View
1. What is the maximum number of bits that can be generated by the ADC being produced now? 2. What is the maximum number of input bits that can be processed by a microprocessor? 3. Specific...
31 July 2013 3,411 3 View
What is the output of the amplifier, if the input is bigger than its maximum limit or smaller than its minimum limit? Thanks.
16 July 2013 4,397 5 View
Hello all, I read from many books that the power reflection is : Pr/Pi=Rf, which Pr = Power Reflected, Pi = Power Incident, and Rf = Reflection Coefficient. And Rf=((n1-n2)/(n1+n2))^2, which n1 =...
29 June 2013 983 1 View
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24 June 2013 6,959 30 View
Can someone tell me the components inside an Optical Time Domain Reflectometer (OTDR)?
21 June 2013 893 1 View
1. What kind of amplifier does OTDR use? Inverting or Non-Inverting? And why? 2. How can we calculate the spike that is shown in OTDR, if we have the reflection coefficient (Rc)? I'm using 10 log...
17 June 2013 1,559 1 View
What is the min and max power that avalanche photodiodes can receive? Can someone please tell me the characteristic curve of an avalanche photodiode?
07 June 2013 572 3 View
Can someone explain to me what caused noise at the end of a fiber optic at OTDR display? And is there any formula to calculate the length of the noise?
04 June 2013 7,032 0 View
I'm a bit confused about the meaning of parameters that are used in Rayleigh scattering formula (in Fiber Optics). Can someone please explain in a simple way, what are: 1. photoelastic...
02 June 2013 2,567 5 View
How can an OTDR detect end of the fiber? And can someone explain me the use of Averaging process that happen in OTDR?
28 May 2013 7,594 27 View
Is there any provision about using a splice (fusion or mechanical splice) in an Optical Communication System,, like using 1 splice every 2 kilometers of fiber optic cable?
26 May 2013 4,919 9 View
I have some questions to ask, hope that you can help me.. 1. How can we calculate a dead zone? I see that in http://en.wikipedia.org/wiki/Optical_time-domain_reflectometer, the dead zone for 10ns...
22 May 2013 3,380 1 View
This is a part of my listing program : // I declare daya and ai as a global variable. procedure TForm1.FormCreate(Sender: TObject); begin daya := 10; ai := 0.5; end; procedure...
17 May 2013 1,993 1 View
How to calculate the Connector Reflectance if I have the Fresnel Reflection Coefficient and the power of the light before it hits the Connector?
02 May 2013 9,810 1 View
I want to ask about OTDR. 1. How can OTDR measure the length of the fiber optic cable? 2. Can someone tell me specifically about OTDR, especially how can it makes the graphic? What kind of process...
25 April 2013 8,467 6 View
I want to know how can a OTDR show a graphic of losses and/or attenuations of a fiber optic? How can it know the amount of power to make the graphic? What kind of phenomenon is used by OTDR to...
02 January 2013 4,845 16 View
