Behavior of the first higher-order modes of a circular core optical fiber whose core cross-section changes into an ellipse

1995 ◽  
Vol 13 (2) ◽  
pp. 127-136 ◽  
Author(s):  
M. Eguchi ◽  
M. Koshiba
Keyword(s):  
Optical Fiber ◽  
Cross Section ◽  
Higher Order ◽  
Higher Order Modes

scholarly journals Dye-doped spheres with plasmonic semi-shells: Lasing modes and scattering at realistic gain levels

2013 ◽  
Vol 4 ◽  
pp. 974-987 ◽  
Author(s):  
Nikita Arnold ◽  
Boyang Ding ◽  
Calin Hrelescu ◽  
Thomas A Klar
Keyword(s):  
Cross Section ◽  
Near Field ◽  
Field Enhancement ◽  
Higher Order ◽  
Silver Layer ◽  
Far Field ◽  
Spectral Features ◽  
Polystyrene Spheres ◽  
Higher Order Modes ◽  
Lasing Modes

We numerically simulate the compensation of absorption, the near-field enhancement as well as the differential far-field scattering cross section for dye-doped polystyrene spheres (radius 195 nm), which are half-covered by a silver layer of 10–40 nm thickness. Such silver capped spheres are interesting candidates for nanoplasmonic lasers, so-called spasers. We find that spasing requires gain levels less than 3.7 times higher than those in commercially available dye-doped spheres. However, commercially available concentrations are already apt to achieve negative absorption, and to narrow and enhance scattering by higher order modes. Narrowing of the plasmonic modes by gain also makes visible higher order modes, which are normally obscured by the broad spectral features of the lower order modes. We further show that the angular distribution of the far-field scattering of the spasing modes is by no means dipole-like and is very sensitive to the geometry of the structure.

Higher order modes in acoustically antiguiding optical fiber

2012 ◽  
Vol 54 (10) ◽  
pp. 2347-2349 ◽  
Author(s):  
Peter D. Dragic ◽  
Pi-Cheng Law ◽  
Yuh-Shiuan Liu
Keyword(s):  
Optical Fiber ◽  
Higher Order ◽  
Higher Order Modes

Optical fiber-based dispersion compensation using higher order modes near cutoff

1994 ◽  
Vol 12 (10) ◽  
pp. 1746-1758 ◽  
Author(s):  
C.D. Poole ◽  
J.M. Wiesenfeld ◽  
D.J. DiGiovanni ◽  
A.M. Vengsarkar
Keyword(s):  
Optical Fiber ◽  
Dispersion Compensation ◽  
Higher Order ◽  
Higher Order Modes

scholarly journals Selective launching of higher-order modes into an optical fiber with an optical phase shifter

1994 ◽  
Vol 19 (7) ◽  
pp. 454 ◽  
Author(s):  
W. Q. Thornburg ◽  
B. J. Corrado ◽  
X. D. Zhu
Keyword(s):  
Optical Fiber ◽  
Phase Shifter ◽  
Higher Order ◽  
Optical Phase ◽  
Higher Order Modes

scholarly journals Channeling of spontaneous emission from an atom into the fundamental and higher-order modes of a vacuum-clad ultrathin optical fiber

2017 ◽  
Vol 96 (4) ◽  
Author(s):  
Fam Le Kien ◽  
S. Sahar S. Hejazi ◽  
Thomas Busch ◽  
Viet Giang Truong ◽  
Síle Nic Chormaic
Keyword(s):  
Optical Fiber ◽  
Spontaneous Emission ◽  
Higher Order ◽  
Higher Order Modes
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