Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Naoya Sakurai"'
Publikováno v:
Journal of Lightwave Technology. 28:1693-1702
In this paper, we investigate the performance of a spectrum shaping technique for the suppression of image-induced crosstalk during the heterodyne detection of wavelength-swept wavelength-division-multiplexed (WDM) signals. In particular, we focus on
Publikováno v:
IEICE Electronics Express. 7:1195-1200
Coherent detection can improve the receiver sensitivity and spectral density, so it has become a key technology in realizing the advanced access network. Adding optical heterodyne detection to the wavelength division multiplexing passive optical netw
Publikováno v:
IEICE Electronics Express. 6:1180-1185
We confirm the tolerance of our proposed wavelength-swept wavelength division multiplexing (WDM) access system to four-wave mixing (FWM) crosstalk induced during fiber transmission. Since wavelength-swept light is employed as the carrier in the propo
Publikováno v:
PIERS Online. 5:297-300
Radio On Fiber (ROF) is an optical analog technique for transmitting RF signals. With ROF systems, the base station conflguration is simple and independent of the modulation format and protocol. This advantage means that ROF is expected to become a u
Publikováno v:
IEICE Transactions on Communications. :399-408
We describe the transmission characteristics of a wavelength independent wavelength division multiplexing passive optical network (WDM-PON) based on a wavelength channel data rewriter (WCDR). The WCDR is composed of a linear amplifier (LA) and a satu
Publikováno v:
Electronics and Communications in Japan (Part I: Communications). 90:9-20
In order to economically realize a Gbit/s class downlink using 60-GHz millimeter waves, the authors have previously proposed an optical/electrical two-step heterodyne system, based on the Radio-On-Fiber (ROF) transmission technique, in which millimet
Publikováno v:
Journal of Lightwave Technology. 23:2621-2628
A wavelength-division-multiplexing (WDM) access system can be used in two basic ways: user multiplexing, which assigns a wavelength to each user, and service multiplexing, which assigns a wavelength to each service. In current designs for service mul
Publikováno v:
Electronics and Communications in Japan (Part I: Communications). 78:49-59
Transmitting high definition television (HDTV) signals over digital networks requires bit-reduction coding techniques if cost-effective services are to be provided. This paper describes a high-quality HDTV codec that can encode original 1.2 Gbit/s HD
Publikováno v:
ICC
Recently, various architectures for future networks have been researched and discussed. In one of these approaches, we assume the deployment of an access network in which wavelength division multiplexing (WDM) and time division multiplexing (TDM) tec
Autor:
Naoya Sakurai, Hideaki Kimura, Hisaya Hadama, Osamu Tadanaga, Takahiro Kubo, Tomohiro Taniguchi, Masaki Asobe
Publikováno v:
Optics express. 18(3)
We propose an in-line monitoring technique that uses 650 nm visible light for performing maintenance work on Fiber-to-the-home (FTTH) network quickly without the need for measuring skills or external devices. This technique is characterized by visibl