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We experimentally demonstrate space division multiplexed data transmission using the LP01, LP11a and LP11b modes over a 1 km length of elliptical-core few mode fiber at 1550 nm using 10 Gb/s ON–OFF keying data per spatial channel. Space division multiplexed transmission without the use of any multiple input multiple output digital signal processing showed no power penalty relative to the single-mode...
We look at multi-mode fiber as potential means to upgrade capacity of optical transmission systems compared to current single-mode technology by employing multiple modes as transmission lanes as well as using higher-order modulation formats.
We propose a tunable spectral bandpass filter using short- and long-wavelength bend-loss edges of both MSF and HOF. Various spectral functionalities of filter are obtained by carefully choosing optimal bend radii for serially concatenated fibers.
We propose new ring defect design for holey-fiber that can provide flexible modification of modal characteristics. Annulus modal shape, chromatic dispersion and adiabatic mode conversion along a taper are discussed.
Chromatic dispersion measurement for a multimode fiber using optical frequency domain reflectometry (OFDR) is proposed. A few-mode fiber was prepared to directly measure the chromatic dispersions of the excited modes using our proposed measurement technique.
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