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Flexible and evolutionary optical ac...

Hsueh, Yu-Li.

Flexible and evolutionary optical access networks.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Flexible and evolutionary optical access networks.
作者:	Hsueh, Yu-Li.
面頁冊數:	160 p.
附註:	Adviser: Leonid G. Kazovsky.
附註:	Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4394.
Contained By:	Dissertation Abstracts International66-08B.
標題:	Engineering, Electronics and Electrical.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3187294
ISBN:	9780542295126

Flexible and evolutionary optical access networks.
Hsueh, Yu-Li.

Flexible and evolutionary optical access networks. - 160 p.

Adviser: Leonid G. Kazovsky.

Thesis (Ph.D.)--Stanford University, 2005.

A new CDR circuit for receiving the bursty traffic in PONs is designed and analyzed. It detects data transition edges upon arrival of the data burst and quickly selects the best clock phase by a control logic circuit. Then, an analog delay-locked loop (DLL) keeps track of data transitions and removes phase errors throughout the burst. The combination of the fast phase detection mechanism and a feedback loop based on DLL allows both fast response and manageable jitter performance in the burst-mode application.

ISBN: 9780542295126Subjects--Topical Terms:

226981
Engineering, Electronics and Electrical.

Flexible and evolutionary optical access networks.
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502 $a Thesis (Ph.D.)--Stanford University, 2005.
520 # $a A new CDR circuit for receiving the bursty traffic in PONs is designed and analyzed. It detects data transition edges upon arrival of the data burst and quickly selects the best clock phase by a control logic circuit. Then, an analog delay-locked loop (DLL) keeps track of data transitions and removes phase errors throughout the burst. The combination of the fast phase detection mechanism and a feedback loop based on DLL allows both fast response and manageable jitter performance in the burst-mode application.
520 # $a A new efficient numerical algorithm is developed to analyze holey optical fibers. The algorithm has been verified against experimental data, and is exploited to design holey optical fibers optimized for the discrete Raman amplification.
520 # $a A novel PON employing dynamic wavelength allocation to provide bandwidth sharing across multiple physical PONs is designed and experimentally demonstrated. Tunable lasers, arrayed waveguide gratings, and coarse/fine filtering combine to create a flexible optical access solution. The network's excellent scalability can bridge the gap between conventional TDM PONs and WDM PONs. Scheduling algorithms with quality of service support are also investigated. Simulation results show that the proposed architecture exhibits significant performance gain over conventional PON systems. Streaming video transmission is demonstrated on the prototype experimental testbed. The powerful architecture is a promising candidate for next-generation optical access networks.
520 # $a A spectral shaping line coding scheme is developed to allow a simple and cost-effective overlay of high data-rate services in existing PONs, leaving field-deployed fibers and existing services untouched. Spectral shapes of coded signals can be manipulated to adapt to different systems. For a specific tolerable interference level, the optimal line code can be found which maximizes the data throughput. Experiments are conducted to demonstrate and compare several optimized line codes.
520 # $a Passive optical networks (PONs) are promising solutions that will open the first-mile bottleneck. Current PONs employ time division multiplexing (TDM) to share bandwidth among users, leading to low cost but limited capacity. In the future, wavelength division multiplexing (WDM) technologies will be deployed to achieve high performance. This dissertation describes several advanced technologies to enhance PON systems.
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