Which of the 3 multiplexing techniques are common for fiber optic link??? Wavelength Division Multiplexing || Optic Time Division Multiplexing || Space Division Multiplexing
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3 Multiplexing techniques are common for fiber optic link.those are:
- Wavelength Division Multiplexing
- Optic Time Division Multiplexing
- Space Division Multiplexing
Wavelength Division Multiplexing :
In fiber-optic communications, wavelength-division multiplexing is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths of laser light. This technique enables bi-directional communications over one strand of fiber, as well as multiplication of capacity.Optic Time Division Multiplexing:
Optical Time Division Multiplexing is a multiplexing technique that,which basically multiplexes a number of low bit rate optical channels in time domain. Several low speed optical channel are multiplexed into a fixed electrical clock period,thus increasing the transmission speed. Each signal is transmitted over a single communication channel dy dividing the time fame into slots. One slot for each message signal. Based on the time each low speed channel is allocated to a specific position,where it works in synchronized mode.Space Division Multiplexing :
It is a technology that utilizes the spatial(স্থান-সংক্রান্ত/দূরত্বসংক্রান্ত) dimension to deliver simultaneously different data streams by creating parallel spatial channels. This technology is commonly used in MULTI-INPUT and MULTI-OUTPUT system.Quote: