Selective excitation of LP01 mode in multimode fiber using solid-core photonic crystal fiber

Free-space optics mode-wavelength division multiplexing system using LG modes based on decision feedback equalization

“…An emerging multiplexing scheme, known as mode division multiplexing (MDM), has been used to transport independent channels simultaneously using eigenmodes [10]. In MDM, eigenmodes are used in MDM to drive the propagation of a number of channels on different modes generated by various mechanisms such as photonic crystal fibers [11], optical signal processing [12,13], few mode fiber [9,14], modal decomposition methods [15,16], laser designs [17,18] and spatial light modulators [19,20]. MDM has been used for switching [21] and for multiplexing [10] in FSO systems.…”

Laguerre-Gaussian mode division multiplexing in multimode fiber using SLMs in VCSEL arrays

“…In addition, q-plates have been fabricated from liquid-crystal slabs to convert a left circularly polarized beam into a helically phased beam with right circular polarization, or vice versa [27]. Furthermore, on-plane mode couplers for combining and separating different spatial channels [28][29][30][31], switches for routing different channels [32] have also been developed.…”

“…In previous MDM systems, linearly polarized Laguerre-Gaussian modes have been generated using fiber Bragg gratings lasers [40][41][42], long-period grating lasers [43], separate SLMs [44][45][46][47]7] and photonic crystal fiber [48].…”

Effect of decision feedback equalizer taps on 3×6- channel mode-wavelength division multiplexing system performance in multimode fiber

“…MDM has been realized through through holographic wavefront generation [9][10][11][12], multi-core fibers [13][14][15], mode-selective fiber couplers [16][17][18], laser cavity design [19][20][21] or via optical signal processing [17,22,23].…”