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Journals and Conferences
We demonstrate a bidirectional 12-channel wavelength-division-multiplexing passive optical network (WDM-PON) with 50-GHz channel spacing based on wavelength-locked Fabry–Pérot laser diodes. The maximum transmission length is 30 km including 20 km of feeder fiber and 10 km of distribution fiber. The proposed WDM-PON system can accommodate 80 channels with… (More)
We demonstrate an improvement of optical receiver performance for an optical signal with beat noises. The decision threshold level is adjusted automatically according to the detected average optical power. This simple method improves optical receiver performance under a wide range of input signal conditions, e.g., beat noise level and extinction ratio. Thus… (More)
We demonstrate an overlay method for broadcasting signal transmission in a wavelength division multiplexing-passive optical network. We used a low noise broadband light source based on mutually injected Fabry-Perot laser diodes to increase the transmission capacity. 1. Introduction The convergence of data, voice and video traffics in a single network infra… (More)
We investigate effects of back-reflection in wavelength division multiplexing passive optical networks having an injected seed light. We also estimate the maximum achievable fiber loss as a function of the linewidth of the seed light.
We demonstrate 12-channel WDM-PON with 50 GHz channel spacing based on low cost wavelength locked Fabry-Perot laser diodes. The proposed WDM-PON can accommodate 80 channels with EDFA based broadband light source. ©2005 Optical Society of America OCIS codes: (060.4250) Networks; (060.4510) Optical communications
We demonstrate 4-channel WDM-PON with 50 GHz channel spacing based on wavelength locked F-P LDs. The transmission bit rate and the length between the CO and the subscriber is 155 Mb/s and 20 km, respectively. The proposed WDM-PON can accommodate 80 channels with EDFA based broadband light source.
We propose a new broadband light source (BLS) based on the mutual injection between two ARcoated F-P LDs. We demonstrate colorless operation of WDM-PON by using the proposed BLS and Manchester coded data. The passive optical network (PON) based on wavelength division multiplexing (WDM) has been investigated for fiber-to-the-home (FTTH). The WDM-PON is very… (More)
We demonstrated a WDM-PON based on low noise BLS using mutually injected F-P LDs. The low noise BLS is more useful to realize highly scalable WDM-PON based on the wavelength-locked F-P LDs than ASE-based BLS.
An easy and efficient evolution method from a time-division multiplexing passive optical networks (TDM-PONs) to next-generation PONs is proposed and demonstrated. A single-type wavelength band combiner/splitter (WC) enables a simple and efficient evolution of TDM-PON maintaining the current PON infrastructure and wavelength plan. The feasibility of the… (More)
An efficient evolution method from a TDM-PON to a next-generation PON is proposed and demonstrated. A single-type three-port wavelength band combiner/splitter enables an efficient evolution of TDM-PON maintaining the current PON infrastructure and wavelength plan.