Open AccessDOI
Two-mode Fiber with a Reduced Mode Overlap for Uncoupled Mode-division Multiplexing in C+L Band
Seongjin Hong,Kyoungyeon Choi,Yong Soo Lee,Kyunghwan Oh +3 more
- Vol. 2, Iss: 3, pp 233-240
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TLDR
In this article, a two-mode fiber (TMF) design that can effectively reduce the mode overlap between LP01 and LP11 modes by using a W-shaped index profile core structure was proposed.Abstract:
We proposed a two-mode fiber (TMF) design that can effectively reduce the mode overlap between LP01 and LP11 modes by using a W-shaped index profile core structure, which is a primary concern in uncoupled mode division multiplexing (MDM). TMF has a three-layered core structure; central circular core, inner cladding, and outer ring core. We confirmed that in an optimal structure the LP01 mode was highly confined to the central core while the LP11 mode was guided along the outer ring core to result in a minimum overlap integral. We used a full-vectorial finite element method to estimate effective index, differential group delay (DGD), confinement loss, chromatic dispersion, and mode overlap controlling the parameters of the W-shaped structure. The optimized W-profile fiber provided optical characteristics within the ITU-T recommended standards over the entire C+L band.read more
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Journal ArticleDOI
Hollow Silica Photonic Crystal Fiber Guiding 101 Orbital Angular Momentum Modes Without Phase Distortion in C+L Band
TL;DR: In this article, a hollow ring core silica photonic crystal fiber was proposed to support 101 orbital angular momentum (OAM) modes, maintaining a high mode quality without phase distortion, a low confinement loss, and a large effective index difference between the adjacent modes, which could open a new avenue of OAM mode multiplexing applications.
Simultaneously achieving a large negative dispersion and a high birefringence over Er and Tm dual gain bands in a square lattice photonic crystal fiber
TL;DR: In this paper, a double-cladding square lattice was proposed for the dual-band optical gain bands, which can support a large negative dispersion and a high birefringence.
Journal ArticleDOI
A novel six-core few-mode fiber with low loss and low crosstalk
TL;DR: In this paper, a ring-core few-mode fiber is proposed, where the refractive index of each core is graded and pure silica cores are employed to effectively reduce the intrinsic loss.
Journal ArticleDOI
Corrections to “Simultaneously Achieving a Large Negative Dispersion and a High Birefringence Over Er and Tm Dual Gain Bands in a Square Lattice Photonic Crystal Fiber”
TL;DR: In this paper, a double-cladding square lattice was proposed for the dual-band optical gain bands, supporting a large negative dispersion and a high birefringence.
Journal ArticleDOI
Forward-stimulated Brillouin scattering in silicon-core fibers
TL;DR: In this article , the authors studied the FSBS effect in silicon-core fibers and showed that a strong FSBS gain similar to 365.57 (1/mw) can be obtained without the need to reduce the size to the usual dimensions of silicon waveguides, paving the way for further research studies in areas such as frequency-tunable laser emission, mode-locked pulsed lasers, lownoise oscillators, and optical gyroscopes.