Minimizing the Number of Spans for Terrestrial Fiber-Optic Systems Using Quasi-Single-Mode Transmission

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

Spectrally Efficient multicarrier Systems for Fiber-Optic Transmission

In-Line Fiber Optic Interferometric Sensors in Single-Mode Fibers

In-line fiber optic interferometers have attracted intensive attention for their potential sensing applications in refractive index, temperature, pressure and strain measurement, etc. Typical in-line fiber-optic interferometers are of two types: Fabry-Perot interferometers and core-cladding-mode interferometers. It's known that the in-line fiber optic interferometers based on single-mode fibers...

Single Mode Fiber Optic Sagnac Interferometer with Wireless Data Collection

Since the introduction of fiber optic gyroscope in the late 1970’s 1, the need for accurate inertial navigational instruments has driven the evolution of the device into complex open or closed loop designs manufactured with expensive polarization maintaining fibers and fused fiber optic elements. Our goal herein is to describe a novel fiber optic Sagnac interferometer design made with readily a...

Experimental demonstration of single-mode large mode area multi-trench fiber for UV-VIS light transmission

Step-index optical fibers are widely used waveguides for light transmission. However, non-linear effects are always a severe challenge for optical fibers with increasing power level. This challenge is more severe at shorter wavelengths, where core size has to be much smaller in order to maintain a single mode operation. For an example, for 0.005 core refractive index with respect to cladding, a...