Higher order mode generation in an anti-resonant hollow-core fiber

2021 ◽  
Author(s):  
Matthew A. Cooper ◽  
Steffen Wittek ◽  
Daniel Cruz Delgado ◽  
Joseph Wahlen ◽  
Julian Martinez Mercado ◽  
...  
Keyword(s):  
Higher Order ◽  
Hollow Core ◽  
Order Mode ◽  
Core Fiber ◽  
Higher Order Mode ◽  
Mode Generation

Higher-order mode suppression in twisted single-ring hollow-core photonic crystal fibers

2017 ◽  
Vol 42 (11) ◽  
pp. 2074 ◽  
Author(s):  
N. N. Edavalath ◽  
M. C. Günendi ◽  
R. Beravat ◽  
G. K. L. Wong ◽  
M. H. Frosz ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fibers ◽  
Higher Order ◽  
Hollow Core ◽  
Order Mode ◽  
Mode Suppression ◽  
Single Ring ◽  
Crystal Fibers ◽  
Higher Order Mode

scholarly journals Higher-Order Mode Suppression in Antiresonant Nodeless Hollow-Core Fibers

Micromachines ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 128 ◽  
Author(s):  
Aichen Ge ◽  
Fanchao Meng ◽  
Yanfeng Li ◽  
Bowen Liu ◽  
Minglie Hu
Keyword(s):  
Single Mode ◽  
Ring Structure ◽  
Higher Order ◽  
Hollow Core ◽  
Order Mode ◽  
High Loss ◽  
Mode Suppression ◽  
Single Ring ◽  
Nested Structure ◽  
Higher Order Mode

Negative curvature hollow-core fibers (NC-HCFs) are useful as gas sensors. We numerically analyze the single-mode performance of NC-HCFs. Both single-ring NC-HCFs and nested antiresonant fibers (NANFs) are investigated. When the size of the cladding tubes is properly designed, higher-order modes (HOMs) in the fiber core can be coupled with the cladding modes effectively and form high-loss supermodes. For the single-ring structure, we propose a novel NC-HCF with hybrid cladding tubes to enable suppression of the first two HOMs in the core simultaneously. For the nested structure, we find that cascaded coupling is necessary to maximize the loss of the HOMs in NANFs, and, as a result, NANFs with five nested tubes have an advantage in single-mode guidance performance. Moreover, a novel NANF with hybrid extended cladding tubes is proposed. In this kind of NANF, higher-order mode extinction ratios (HOMERs) of 105 and even 106 are obtained for the LP11 and LP21 modes, respectively, and a similar level of 105 for the LP02 modes. Good single-mode performance is maintained within a broad wavelength range. In addition, the loss of the LP01 modes in this kind of NANF is as low as 3.90 × 10−4 dB/m.

A Novel Method to Depress Higher Order Mode Generation in MILO

2011 ◽  
Vol 39 (1) ◽  
pp. 545-549 ◽  
Author(s):  
Fen Qin ◽  
Dong Wang ◽  
Jie Wen ◽  
Dai-Bing Chen ◽  
Zhi-Kai Fan
Keyword(s):  
Higher Order ◽  
Order Mode ◽  
Novel Method ◽  
Higher Order Mode ◽  
Mode Generation
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