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 letter, the fabrication and application of 255-chip 320 Gchip/s quaternary phase superstructure fiber Bragg gratings for optical code generation and recognition in a four-channel wavelength-division-multiplexing (WDM/OCDM) experiment is reported.
Abstract: In this letter, we report the fabrication and application of 255-chip 320 Gchip/s quaternary phase superstructure fiber Bragg gratings (SSFBGs) for optical code generation and recognition in a four-channel wavelength-division-multiplexing (WDM)/optical code-division-multiplexing (OCDM) experiment. Individual users of the system operate with different coding schemes, repetition rates, and wavelengths. Our experiments show that a single SSFBG can be used to perform simultaneous optical decoding and wavelength channel selection.
102 citations
TL;DR: The results show that the system Q of the WDM channels at 10 Gb/s is over 13.0 dB for a transmission up to 4800 km of standard-single-mode-fiber (SSMF) without dispersion compensation.
Abstract: In this letter, we first present the theoretical basis for coherent optical OFDM systems in direct up/down conversion architecture. We then demonstrate the transmission performance through simulation for WDM systems with coherent optical OFDM (CO-OFDM) including the fiber nonlinearity effect. The results show that the system Q of the WDM channels at 10 Gb/s is over 13.0 dB for a transmission up to 4800 km of standard-single-mode-fiber (SSMF) without dispersion compensation. A novel technique of partial carrier filling (PCF) for improving the nonlinearity performance of the transmission is also presented. The system Q of the WDM channels with a filling factor of 50 % at 10 Gb/s is improved from 15.1 dB to 16.8 dB for a transmission up to 3200 km of SSMF without dispersion compensation.
102 citations
TL;DR: In this article, a W-band seamlessly integrated fiber-wireless-fiber transmission system enabled by photonic millimeter-wave generation and demodulation techniques is proposed and experimentally demonstrated.
Abstract: We propose and experimentally demonstrate a W-band seamlessly integrated fiber-wireless-fiber transmission system enabled by photonic millimeter-wave generation and demodulation techniques, in which up to 128-Gb/s (16-Gbd) polarization division multiplexing 16-ary quadrature amplitude modulation (16QAM) signal can be first transmitted over 50-km single-mode fiber-28 (SMF-28), then delivered over 1-m × 2 multiple-input multiple-output wireless link at 100 GHz and finally transmitted over another 50-km SMF-28 with a bit-error ratio less than the third-generation soft-decision forward-error-correction threshold of 2 × 10
-2
. The proposed system can be well compatible with high-level QAM and is suited to large-capacity high-spectral-efficiency fiber-wireless integration communication.
102 citations
TL;DR: In this article, eight WDM channels each operating at 10 Gb/s were transmitted through 280 km of dispersion-shifted fiber concatenated with small amounts of conventional fiber.
Abstract: Eight WDM channels each operating at 10 Gb/s were transmitted through 280 km of dispersion-shifted fiber concatenated with small amounts of conventional fiber. No degradations from optical nonlinearities were observed. >
101 citations
Patent•
06 Dec 2004
TL;DR: In this article, a high power integrated fiber laser system includes cascaded amplifiers that utilize low numerical aperture fiber amplifiers, which is rugged and lightweight, and is used for high power laser systems.
Abstract: A high power integrated fiber laser system includes cascaded amplifiers that utilize low numerical aperture fiber amplifiers. The system is rugged and lightweight.
101 citations