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.
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TL;DR: In this article, a flat-gain polarization-independent continuous-wave fiber-optical parametric amplifier with 15 dB gain over a 20-nm bandwidth was demonstrated using two orthogonal pumps.
Abstract: Fiber-optical parametric amplifiers can be rendered polarization-independent by using two pumps with orthogonal polarization states. We have analytically investigated and experimentally demonstrated, for the first time to our knowledge, a flat-gain polarization-independent continuous-wave fiber optical parametric amplifier with 15 dB of gain over a 20-nm bandwidth, by using two orthogonal pumps.
157 citations
TL;DR: In this paper, the authors demonstrate the first phase-array wavelength multiplexer fabricated in the silicon-on-insulator (SOI) waveguide technology, which has a channel spacing of 1.9 nm centered at 1550-nm wavelength and a 3-dB channel bandwidth of 0.72 nm.
Abstract: We demonstrate the first phased-array wavelength multiplexer fabricated in the silicon-on-insulator (SOI) waveguide technology. The four-channel wavelength division multiplexer (WDM) has a channel spacing of 1.9 nm centered at 1550-nm wavelength and a 3-dB channel bandwidth of 0.72 nm. The crosstalk to neighboring channels is less than -22 dB and the on-chip insertion loss is below 6 dB for all channels. The TE-TM shift is less than 0.04 nm which is the smallest attained without compensation techniques in any integrated optic technology.
157 citations
TL;DR: In this article, an all-active SOA-based Mach-Zehnder device, employed as a wavelength converter, is shown capable of improving the OSNR by more than 20 dB at this bit rate, thereby resulting in penalty reduction.
Abstract: All-optical 2R and 3R regeneration techniques are investigated at 40 Gb/s. It is shown that an all-active SOA-based Mach-Zehnder device, employed as a wavelength converter, is capable of improving the OSNR by more than 20 dB at this bit rate, thereby resulting in penalty reduction. Furthermore, simultaneous all-optical wavelength conversion and demultiplexing from 40 to 10 Gb/s is demonstrated showing that the scheme, which also has a 3R regeneration capability, is feasible in a combined OTDM/WDM network.
156 citations
04 Mar 2012
TL;DR: In this article, the authors demonstrate multiple-input-multiple-output transmission of a combined 3-space-, and 2-polarization-, and 5-wavelength-division multiplex in a 3-core microstructured fiber over 4200 km.
Abstract: We experimentally demonstrate multiple-input-multiple-output transmission of a combined 3-space-, and 2-polarization-, and 5-wavelength-division multiplex in a 3-core microstructured fiber over 4200 km. This is the record transmission distance for spatial-division multiplexing in a fiber.
156 citations
TL;DR: In this article, an approach towards a singlemode local loop is presented in which each customer is given a dedicated wavelength channel by taking different wavelength slices from identical LEDs, accomplished by means of WDM components.
Abstract: An approach towards a single-mode local loop is presented in which each customer is given a dedicated wavelength channel by taking different wavelength slices from identical LEDs. This is accomplished by means of wavelength division multiplexing (WDM) components. Results from a fourchannel system operating at 2 Mbit/s over 2.2 km, together with a theoretical analysis of a ten-channel system, are presented.
156 citations