If V is less than 2.405 then the fiber is mono mode but if V is greater than 2.405 then fiber is multimode.
V number is also related with the number of modes is the fiber as:
N = V2/ 2 for step index fiber and
Number of modes for graded index fiber is N = V2/ 4.
In Optical Fiber Communication system 1300-1550 nm range wavelengths are used.. Reason for tis s "In this range only we can acheive low attenuation with zero dispersion"
one
fiber cable dia meeter
submarine cable
200
The "v parameter" of an optical fiber stands for the V number, which represents the normalized frequency within the fiber core. It is calculated based on the core diameter, operating wavelength, and numerical aperture of the fiber. The V number helps in characterizing the modal behavior and guiding properties of the optical fiber.
40 GHz
The electrical bandwidth refers to the frequency range that the electronic components in the communication system can handle, while optical bandwidth refers to the frequency range that the optical fiber can transmit. The relationship between the two bandwidths is important in ensuring that the data transmission is efficient and reliable. Matching the electrical and optical bandwidths helps to avoid signal degradation and distortion in the communication system.
Dispersion affects optical fibers in the sense that dispersion causes a disruption in the frequency of lights waves and can focus the wavelength nature of light.
In Optical Fiber Communication system 1300-1550 nm range wavelengths are used.. Reason for tis s "In this range only we can acheive low attenuation with zero dispersion"
40 GHz
Usually, there is a laser diode that is optically coupled to the fiber.
One of the advantages of optical fiber is that it is NOT susceptible to cross-talk.
An objective type of question on optical fiber is on that focuses on the integral part of fiber optic. A good question would be, " Why are optical fibers immune to EMI? "
Fiber optic cables carry light, not radio frequency energy. Somewhat like comparing apples to nuts.
Loss is fibre optic cable depends on the glass and frequency of the pulse used but the factors involved are predominately light scattering and dispersing.
Describe refraction and reflection with respect to Fiber Optical Cable?