Analysis Of Microbending Losses On A Single-Mode, Step-Index Fiber At Higher-Order Harmonics Of Deformation Spectrum

1986 ◽  
Author(s):  
Marek T. Wlodarczyk ◽  
S. R. Seshadri
Keyword(s):  
Single Mode ◽  
Higher Order ◽  
Step Index ◽  
Step Index Fiber

Analysis of an upside-down taper lens end from a single-mode step-index fiber

1998 ◽  
Vol 37 (6) ◽  
pp. 1006 ◽  
Author(s):  
Samir Kumar Mondal ◽  
Sankar Gangopadhyay ◽  
Somenath Sarkar
Keyword(s):  
Single Mode ◽  
Step Index ◽  
Step Index Fiber

scholarly journals Design of large mode area all-solid anti-resonant fiber for high-power lasers

2021 ◽  
Vol 9 ◽  
Author(s):  
Xin Zhang ◽  
Shoufei Gao ◽  
Yingying Wang ◽  
Wei Ding ◽  
Pu Wang
Keyword(s):  
High Power ◽  
Single Mode ◽  
Higher Order ◽  
Coupling Scheme ◽  
Resonant Coupling ◽  
Higher Order Modes ◽  
Mode Loss ◽  
Fiber Mode ◽  
Power Needs ◽  
Mode Area

Abstract High-power fiber lasers have experienced a dramatic development over the last decade. Further increasing the output power needs an upscaling of the fiber mode area, while maintaining a single-mode output. Here, we propose an all-solid anti-resonant fiber (ARF) structure, which ensures single-mode operation in broadband by resonantly coupling higher-order modes into the cladding. A series of fibers with core sizes ranging from 40 to 100 μm are proposed exhibiting maximum mode area exceeding 5000 μm2. Numerical simulations show this resonant coupling scheme provides a higher-order mode (mainly TE01, TM01, and HE21) suppression ratio of more than 20 dB, while keeping the fundamental mode loss lower than 1 dB/m. The proposed structure also exhibits high tolerance for core index depression.

Baseband frequency response of a graded-index fiber excited by a step-index fiber

1980 ◽  
Vol 19 (15) ◽  
pp. 2589 ◽  
Author(s):  
Tsuneo Horiguchi ◽  
Tadatoshi Tanifuji ◽  
Masamitsu Tokuda
Keyword(s):  
Frequency Response ◽  
Step Index ◽  
Graded Index ◽  
Step Index Fiber

A modified vector mode solution of step index fiber

2011 ◽  
Author(s):  
Fuyuan Guo ◽  
Lianhuang Li ◽  
Hua Zheng ◽  
Yi Wang ◽  
Jinrui Ke ◽  
...  
Keyword(s):  
Step Index ◽  
Vector Mode ◽  
Mode Solution ◽  
Step Index Fiber

scholarly journals Influence of Even-Order Dispersion on Super-Sech Soliton Transmission Quality under Coherent Crosstalk

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Aleksandra Panajotovic ◽  
Daniela Milovic ◽  
Anjan Biswas ◽  
Essaid Zerrad
Keyword(s):  
Fourth Order ◽  
Optical Network ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Higher Order ◽  
Trailing Edges ◽  
Even Order ◽  
Transmission Quality ◽  
The Impact ◽  
Order Dispersion

The transmission speed of optical network strongly depends on the impact of higher order dispersion. In presence of coherent crosstalk, which cannot be otherwise controlled by optical filtering, the impact of higher order dispersions becomes more pronounced. In this paper, the general expressions, that describe pulse deformation due to second- and fourth-order dispersions in a single-mode fiber, are given. The responses for such even-order dispersions, in presence of coherent crosstalk, are characterized by waveforms with long trailing edges. The transmission quality of optical pulses, due to both individual and combined influence of second- and fourth-order dispersions, is studied in this paper. Finally, the pulse shape and eye diagrams are obtained.

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