Results 71 to 80 of about 2,157,907 (198)

Robust transport of high‐speed data in a topological valley Hall insulator

open access: yesNanophotonics, Volume 14, Issue 27, Page 5047-5057, December 2025.
Abstract Photonic topological insulators provide robust transport of light, enabling interesting phenomena such as unidirectional light propagation and immunity to disorder. The discovery of how to effectively break time reversal symmetry was an important development in the field of photonic topological insulators. Knowledge on how to implement designs
Byoung‐Uk Sohn   +4 more
wiley   +1 more source

Monolithic temperature‐insensitive high‐Q Ta2O5 microdisk resonator

open access: yesNanophotonics, Volume 14, Issue 27, Page 5475-5483, December 2025.
Abstract We demonstrate a temperature‐insensitive high‐Q tantalum oxide (Ta2O5) microdisk resonator fabricated using electron‐beam lithography and inductively coupled plasma reactive‐ion etching. The microdisks exhibit a loaded Q‐factor of 4.25 × 105 at 1,550 nm, which more than doubles (∼9.3 × 105) following thermal annealing at 600 °C.
Zhen Yang   +11 more
wiley   +1 more source

Studi Perbandingan DWDM (Dense Wavelength Division Multiplexing) dan CWDM (Coarse Wavelength Division Multiplexing) pada Sistem Komunikasi Serat Optik

open access: yes, 2010
Wavelength Division Multiplexing (WDM) menjadi suatu solusi untuk dapat memultipleks sinyal ke dalam saluran serat optik tunggal dan dapat mengurangi jumlah amplifier dalam saluran transmisi sistem komunikasi serat optik. Dengan adanya teknologi WDM ini,
Siagian, Putra Andica
core   +1 more source

Non‐Markovian Dynamics in Fiber Delay‐Line Buffers

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 8, August 2025.
A qubit‐fiber birefringence‐reservoir model is proposed to explore the non‐Markovian dynamics of the fiber‐based buffered photon and its paired photon. The non‐Markovian probability function is obtained by performing full quantum state tomography. The probability function fits well with experimental data and physical values.
Kim Fook Lee, Prem Kumar
wiley   +1 more source

Experimental Demonstration of π Equivalent Phase-Shifted SBG Laser With Controlled Distributed Phase Shift

open access: yesIEEE Photonics Journal, 2019
We designed and fabricated a π equivalent phase-shifted sampled Bragg grating (SBG) semiconductor laser with a controlled distributed phase shift. The phase shift is equivalently realized with reconstruction-equivalent-chirp (REC) technique.
Rulei Xiao   +6 more
doaj   +1 more source

Optical neuromorphic computing via temporal up‐sampling and trainable encoding on a telecom device platform

open access: yesNanophotonics, Volume 14, Issue 16, Page 2761-2778, August 2025.
Abstract Mapping input signals to a high‐dimensional space is a critical concept in various neuromorphic computing paradigms, including models such as reservoir computing (RC) and extreme learning machines (ELM). We propose using commercially available telecom devices and technologies developed for high‐speed optical data transmission to implement ...
Egor Manuylovich   +3 more
wiley   +1 more source

A Performance Comparison of Centralized and Distributed Spectrum Management Techniques in Elastic Optical Networks

open access: yesJournal of Engineering, 2019
Elastic optical networks (EONs) have emerged to provide higher spectrum efficiency than traditional Dense Wavelength-Division-Multiplexing (DWDM) by utilizing enabling technologies such as flexible spectrum grid, Orthogonal Frequency Division ...
Tushar Mathur   +2 more
doaj   +1 more source

A 50-m/320-Gb/s DWDM FSO Communication With Afocal Scheme

open access: yesIEEE Photonics Journal, 2016
This paper proposes and presents the experimental demonstration of 320-Gb/s free-space optical (FSO) communication based on dense-wavelength-division-multiplexing (DWDM) technology and afocal scheme.
Wen-Shing Tsai   +6 more
doaj   +1 more source

Cross-channel interference due to wavelength drift of tunable lasers in DWDM networks [PDF]

open access: yes, 2007
The authors present an investigation of the wavelength stability of a tunable laser (TL) transmitter and its impact on the performance of a 2.5-Gb/s dense wavelength-division-multiplexed (DWDM) system.
Barry, Liam P.   +4 more
core   +2 more sources

Design of Novel Fiber Optical Flexible Routing System

open access: yesApplied Sciences, 2019
In this paper, we propose a new versatile routing device that utilizes arrayed waveguide gratings (AWGs), optical switches, and optical circulators to implement reconfigurable optical add/drop multiplexers (ROADMs), optical interleavers, and optical ...
Po-Tsung Wu, Tsair-Chun Liang
doaj   +1 more source

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