Results 51 to 60 of about 12,825 (216)

Simple performance evaluation of pulsed spontaneous parametric down-conversion sources for quantum communications

open access: yes, 2011
Fast and complete characterization of pulsed spontaneous parametric down conversion (SPDC) sources is important for applications in quantum information processing and communications.
Alleaume, Romain   +6 more
core   +1 more source

Nanosecond channel-switching exact optical frequency synthesizer using an optical injection phase-locked loop (OIPLL) [PDF]

open access: yes, 2004
Experimental results are reported on an optical frequency synthesizer for use in dynamic dense wavelength-division-multiplexing networks, based on a tuneable laser in an optical injection phase-locked loop for rapid wavelength locking.
Bayvel, P   +6 more
core   +1 more source

Monolithic Silicon Photonic Transceiver for 160 km Multi‐Channel Quantum Entanglement Distribution in Fiber Network

open access: yesLaser &Photonics Reviews, Volume 20, Issue 1, 8 January 2026.
The paper demonstrates a chip scale (4.5 x 4.5 mm2) silicon integrated system that is capable of distributing entangled photons over 160 km single mode fibers without dispersion compensations and external optical filters. The results highlight the potential for massive production and large‐scale deployed quantum integrated circuits for a future ...
Yue Qin, Hongnan Xu, Hon Ki Tsang
wiley   +1 more source

32 channel DQPSK DWDM-PON for local area network using dispersion compensation fiber

open access: yesEPJ Web of Conferences, 2017
In the contest to improving optical channel rates in dense wavelength multiplexing (DWDM) service to realize 40Gb/s, different adjustment and coherent detection plans are being investigated.
Fazea Yousef, Amphawan Angela
doaj   +1 more source

Phase and Amplitude Responses of Narrow-Band Optical Filter Measured by Microwave Network Analyzer [PDF]

open access: yes, 2006
The phase and amplitude responses of a narrow-band optical filter are measured simultaneously using a microwave network analyzer. The measurement is based on an interferometric arrangement to split light into two paths and then combine them.
Hau-kai Chen   +5 more
core   +3 more sources

Enhancing Performance and Quality of Transmission Through Knowledge-Driven Machine Learning-Based FWM Mitigation

open access: yesIEEE Access
This article proposes a knowledge-driven four-wave mixing (FWM) mitigation using supervised learning approaches and a multilevel regression-based dense wavelength division multiplexing (SMR-DWDM) system design.
Sudha Sakthivel   +4 more
doaj   +1 more source

Frequency drift characterisation of directly modulated SGDBR tunable lasers [PDF]

open access: yes, 2007
Tunable Lasers (TL) are rapidly becoming key components in Dense Wavelength Division Multiplexed (DWDM) systems, packet switched schemes and access networks.
Anandarajah, Prince M.   +3 more
core   +1 more source

Polarization‐Independent Complex Bragg Grating Filters on Silicon Nitride

open access: yesLaser &Photonics Reviews, Volume 19, Issue 23, December 3, 2025.
This work demonstrates multi‐band polarization‐insensitive optical filters on the 400‐nm thick silicon nitride platform, complying with the LAN‐WDM standard. The filters are based on cladding‐modulated Bragg gratings with judiciously designed grating dimensions.
Alejandro Fernández‐Hinestrosa   +7 more
wiley   +1 more source

Stable single-photon interference in a 1 km fiber-optical Mach-Zehnder interferometer with continuous phase adjustment

open access: yes, 2011
We experimentally demonstrate stable and user-adjustable single-photon interference in a 1 km long fiber- optical Mach-Zehnder interferometer, using an active phase control system with the feedback provided by a classical laser.
von der Weid, J. P., Xavier, G. B.
core   +1 more source

Intensity-Modulated PM-PCF Sagnac Loop in a DWDM Setup for Strain Measurement

open access: yesApplied Sciences, 2019
A novel intensity-modulated Sagnac loop sensor based on polarization-maintaining photonic crystal fiber (PM-PCF) in a setup with a dense wavelength division multiplexer (DWDM) for strain measurement is presented. The sensor head is made of PM-PCF spliced
Mateusz Mądry   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy