scispace - formally typeset
Search or ask a question
Topic

Wavelength-division multiplexing

About: Wavelength-division multiplexing is a research topic. Over the lifetime, 25059 publications have been published within this topic receiving 332027 citations. The topic is also known as: WDM.


Papers
More filters
Journal ArticleDOI
TL;DR: By attaching vortex gratings onto the facets of a few-mode fiber, an integrated fiber-based OAM (de)multiplexer was demonstrated in this paper, which enabled direct multiplexing of OAM states at one port and the demultiplexing at the other port.
Abstract: The quickly increasing data transfer load requires an urgent revolution in current optical communication. Orbital angular momentum (OAM) multiplexing is a potential candidate with its ability to considerably enhance the capacity of communication. However, the lack of a compact, efficient, and integrated OAM (de)multiplexer prevents it from being widely applied. By attaching vortex gratings onto the facets of a few-mode fiber, we demonstrate an integrated fiber-based OAM (de)multiplexer. A vortex grating fabricated on the fiber facet enables the direct multiplexing of OAM states at one port and the demultiplexing of OAM states at the other port. The measured bit error rate of the carrier signal after propagating through a 5-km few-mode fiber confirms the validity and effectiveness of the proposed approach. The scheme offers advantages in future high-capacity OAM communication based on optical fiber.

66 citations

Proceedings ArticleDOI
20 Mar 2016
TL;DR: A 10 spatial mode multiplexer based on the technique of Multi-Plane Light Conversion that shows average 4.4 dB insertion loss and 21 dB mode selectivity across the full C+L-band is reported.
Abstract: We report a 10 spatial mode multiplexer based on the technique of Multi-Plane Light Conversion. The device shows average 4.4 dB insertion loss and 21 dB mode selectivity across the full C+L-band.

66 citations

Journal ArticleDOI
05 Nov 2007
TL;DR: Modelling of QD polarization dependence shows that it should be possible to achieve polarization insensitive SOAs using vertically coupled QD stacks, and the potential for their application in future 100 Gb Ethernet networks is shown.
Abstract: Recent results on GaAs-based high-speed mode-locked quantum-dot (QD) lasers and optical amplifiers with an operation wavelength centered at 1290 nm are reviewed and their complex dependence on device and operating parameters is discussed on the basis of experimental data obtained with integrated fiber-based QD device modules. Hybrid and passive mode locking of QD lasers with repetition frequencies between 5 and 80 GHz, sub-ps pulse widths, ultralow timing jitter down to 190 fs, high output peak power beyond 1 W, and suppression of Q-switching are reported, showing the large potential of this class of devices for O-band optical fiber applications. Results on cw and dynamical characterization of QD semiconductor optical amplifiers (SOAs) are presented. QD amplifiers exhibit a close-to-ideal noise figure of 4 dB and demonstrate multiwavelength amplification of three coarse wavelength division multiplexing (CWDM) wavelengths simultaneously. Modelling of QD polarization dependence shows that it should be possible to achieve polarization insensitive SOAs using vertically coupled QD stacks. Amplification of ultrafast 80 GHz optical combs and bit-error-free data signal amplification at 40 Gb/s with QD SOAs show the potential for their application in future 100 Gb Ethernet networks.

66 citations

Patent
29 Jun 1995
TL;DR: In this paper, a passively aligned optical interconnect is described for use as a wavelenth division multiplexer (WDM) and demultiplexer, which makes use of silicon waferboard for a low cost interconnect.
Abstract: A passively aligned optical interconnect is described for use as a wavelenth division multiplexer (WDM) and demultiplexer. The device makes use of silicon waferboard for a low cost interconnect. Computer generated holograms are used to effect the multiplexing/demultiplexing as well as focusing of the beams. In an alternative embodiment, the device is used as a beam splitter for monochromatic light. In yet another embodiment, the device is used to spatially separate the polarization states of light.

66 citations

Patent
05 Feb 2001
TL;DR: In this article, a Raman Amplifier, a plurality of pumps are configured to pump light into an optical fiber so as to Raman-amplify an optical signal propagating through the optical fiber.
Abstract: A Raman amplifier, system and method using a plurality of pumps configured to pump light into an optical fiber so as to Raman-amplify an optical signal propagating through the optical fiber. The Raman amplifier also includes an optical coupler configured to optically interconnect the pumping device with the optical fiber, and a control unit configured to control the pumping device so as to achieve a target amplification performance. Further, the control unit monitors the Raman-amplified WDM signal and determines if the monitored Raman-amplified WDM signal is within an allowable tolerance of the target amplification performance. If the Raman-amplified signal is not within the allowable tolerance, the control unit actively controls the pumps to bring the monitored Raman-amplified signal within the allowable tolerance of the target amplification profile.

66 citations


Network Information
Related Topics (5)
Optical fiber
167K papers, 1.8M citations
92% related
Semiconductor laser theory
38.5K papers, 713.7K citations
90% related
Photonics
37.9K papers, 797.9K citations
87% related
Transmission (telecommunications)
171.3K papers, 1.2M citations
86% related
Orthogonal frequency-division multiplexing
50.5K papers, 682.6K citations
86% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023343
2022689
2021479
2020626
2019693
2018725