Results 31 to 40 of about 140,939 (365)

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

Wavelength switched hybrid TDMA/WDM (TWDM) PON: a flexible next-generation optical access solution [PDF]

open access: yes, 2012
In this paper, we propose the system concepts of a next-generation wavelength switched hybrid time division multiple access and wavelength division multiplexing (TWDM) passive optical network (PON) architecture. In this architecture, wavelength selective
Colle, Didier   +4 more
core   +2 more sources

Design and Study on 25 Gbit/s Optical Transmitter Module based on Silicon Optical Scheme

open access: yesGuangtongxin yanjiu, 2021
With the rapid development of optical communication technology, the capacity of optical transmission increases dramatically. The flexible requirements for the management and scheduling of Dense Wavelength Division Multiplexing (DWDM) network systems also
Xuan-xuan CHENG   +8 more
doaj   +1 more source

Wavelength division multiplexing of continuous variable quantum key distribution and 18.3 Tbit/s data channels

open access: yesCommunications Physics, 2019
Quantum key distribution (QKD) can offer communication with unconditional security and is a promising technology to protect next generation communication systems.
T. Eriksson   +10 more
semanticscholar   +1 more source

A Silicon-Based On-Chip 64-Channel Hybrid Wavelength- and Mode-Division (de)Multiplexer

open access: yesPhotonics, 2023
An on-chip 64-channel hybrid (de)multiplexer for wavelength-division multiplexing (WDM) and mode-division multiplexing (MDM) is designed and demonstrated on a 220 nm SOI platform for the demands of large capacity optical interconnections.
Yuxiang Yin   +6 more
doaj   +1 more source

Phase-coherent lightwave communications with frequency combs [PDF]

open access: yes, 2019
Fiber-optical networks are a crucial telecommunication infrastructure in society. Wavelength division multiplexing allows for transmitting parallel data streams over the fiber bandwidth, and coherent detection enables the use of sophisticated modulation ...
Andrekson, Peter A.   +7 more
core   +2 more sources

A Coaxially Integrated Photonic Orbital Angular Momentum Beam Multiplexer [PDF]

open access: yes, 2016
We demonstrate an integrated photonic orbital angular momentum beam multiplexer consisting of four nested arc waveguide gratings. Well-defined OAM mode emissions over wide bandwidth of 1-nm enables simultaneous wavelength division multiplexing and OAM ...
Cai, Xinlun   +8 more
core   +1 more source

Design of Dual-resonator Six-channel WDM based on 2-D Photonic Crystal

open access: yesGuangtongxin yanjiu, 2023
In order to solve the problem of all-optical communication network capacity and spectral efficiency, a two-cavity six-channel Wavelength Division Multiplexer (WDM) based on the coupling characteristics of point-defect cavity and line-defect waveguide of ...
SU Mu-yang   +4 more
doaj  

Polymeric wavelength division multiplexer

open access: yesElectronics Letters, 1999
A polymeric wavelength division multiplexer based on a new double reflective grating structure (DRG) is presented for the first time. A four-channel device with a channel spacing of 200 GHz (1.6 nm) has been designed and realised for application within the low cost datacoms market.
Cowin, MA, Owen, M, White, IH, Penty, RV
openaire   +2 more sources

Characterization of wavelength interleaving in radio-over-fiber systems employing WDM/SCM [PDF]

open access: yes, 2006
A radio-over-fiber (RoF) distribution system incorporating both sub-carrier multiplexing and wavelength division multiplexing (WDM) technologies is presented. This signal is directly modulated onto three high-speed lasers.
A. Kaszubowska   +10 more
core   +1 more source

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