In-line single-mode wavelength division multiplexer/demultiplexer

1984 ◽  
Vol 20 (23) ◽  
pp. 963 ◽  
Author(s):  
C.M. Lawson ◽  
P.M. Kopera ◽  
T.Y. Hsu ◽  
V.J. Tekippe
Keyword(s):  
Single Mode ◽  
Wavelength Division Multiplexer ◽  
Wavelength Division

scholarly journals Peta-bit-per-second optical communications system using a standard cladding diameter 15-mode fiber

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Georg Rademacher ◽  
Benjamin J. Puttnam ◽  
Ruben S. Luís ◽  
Tobias A. Eriksson ◽  
Nicolas K. Fontaine ◽  
...  
Keyword(s):  
Wavelength Division Multiplexing ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Capacity Limits ◽  
Wavelength Division ◽  
Core Networks ◽  
Space Division Multiplexing ◽  
Space Division ◽  
Data Rates ◽  
Multi Mode

AbstractData rates in optical fiber networks have increased exponentially over the past decades and core-networks are expected to operate in the peta-bit-per-second regime by 2030. As current single-mode fiber-based transmission systems are reaching their capacity limits, space-division multiplexing has been investigated as a means to increase the per-fiber capacity. Of all space-division multiplexing fibers proposed to date, multi-mode fibers have the highest spatial channel density, as signals traveling in orthogonal fiber modes share the same fiber-core. By combining a high mode-count multi-mode fiber with wideband wavelength-division multiplexing, we report a peta-bit-per-second class transmission demonstration in multi-mode fibers. This was enabled by combining three key technologies: a wideband optical comb-based transmitter to generate highly spectral efficient 64-quadrature-amplitude modulated signals between 1528 nm and 1610 nm wavelength, a broadband mode-multiplexer, based on multi-plane light conversion, and a 15-mode multi-mode fiber with optimized transmission characteristics for wideband operation.

scholarly journals Design Of All-Normal Dispersion With Ge11.5As24Se64.5/Ge20Sb15Se65 Chalcogenide PCF Pumped At 1300nm For Supercontinuum Generation

2021 ◽  
Author(s):  
Alireza Cheshmberah ◽  
Mahmood Seifouri ◽  
Saeed Olyaee
Keyword(s):  
Photonic Crystal ◽  
Wavelength Division Multiplexing ◽  
Input Pulse ◽  
Single Mode ◽  
Hexagonal Structure ◽  
Operating Conditions ◽  
Wavelength Division ◽  
Spectrum Generation ◽  
Crystal Fibers ◽  
Mode Area

Abstract Supercontinuum spectrum generation is a process in which laser beam in femtoseconds and high power (kilowatts) is converted into a broad-spectrum beam of light after passing through a specific environment. Of course, achieving this range comes with many limitations. In this paper, photonic crystal fibers are used as a substrate for input pulse due to the ability to control dispersion and loss, and creating single-mode operating conditions. One of the main factors for the formation of supercontinuum spectra of injection pulses is maintaining the nonlinear performance of this type of fiber by controlling the effective mode area and also using chalcogenides (nonlinear coefficients about 100 times higher than silica) in their structure. In the proposed structure, a photonic crystal fiber with silica base element and air cavities with hexagonal structure with the center of Ge11.5As24Se64.5 chalcogenide element have been used to provide the nonlinear property of the structure. Also, in this structure, a ring of Ge20Sb15Se65 chalcogenide elements has been used to reduce the effective mode region and create a flat dispersion curve at a wavelength of 1300 nm (second telecommunication window). The input pulse power is 10 kW and its width is 50 femtoseconds, which has caused the range of the supercontinuum from 800 nm to 1900 nm. This structure can be used to provide the required wavelengths as a carrier in a wavelength division multiplexing (WDM).

16-channel dual-tuning wavelength division multiplexer/demultiplexer

2018 ◽  
Vol 27 (12) ◽  
pp. 124208
Author(s):  
Pei Yuan ◽  
Yue Wang ◽  
Yuan-Da Wu ◽  
Jun-Ming An ◽  
Xiong-Wei Hu
Keyword(s):  
Wavelength Division Multiplexer ◽  
Wavelength Division
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