新穎光纖微波/光纖到家/光纖有線電視多頻混合式傳輸系統

Novel ROF/FTTX/CATV Hybrid Multi-Band Transport System

李忠益(Chung-Yi Li)

指導教授 ： 呂海涵

國立臺北科技大學/電資學院/光電工程系研究所/博士(2012年)

摘要

隨著廣受歡迎無所不在的手持設備，人們對於無線和有線傳輸容量的需求越來越大，新世代通訊系統需要高傳輸速率及高頻寬服務來滿足。光纖微波(ROF)、光纖到家(FTTH)、及光纖有線電視(CATV)系統乃是具有發展及應用潛力的通訊系統，用以滿足無線網路和有線光網路需求。光纖微波傳輸系統利用了光纖高頻寬及低傳輸損失的特性，具備高速行動及經濟效益優點；而光纖到家則是對光纖網路提供了解決最後一哩的途徑；另外，對於用戶而言光纖有線電視系統提供了寬頻服務。
在本論文中，首先分別針對光纖微波（ROF）、光纖有線電視（CATV）系統、光纖到家（FTTH）三大傳輸系統進行研究；最後，整合以上三大傳輸系統，研究朝向同時傳送 光纖微波/光纖到家、光纖有線電視/光纖微波、光纖有線電視/光纖到家以及光纖微波/光纖到家/光纖有線電視 等多頻混合式傳輸系統；多頻混合式傳輸系統仍是使用不同的波長在一蕊的光纖裏同時傳送ROF RF/FTTH BB/ CATV 三種信號，對於光纖網路而言將可帶來莫大的利基，因為可同時提供電信、網際網路、及有線電視相關服務，其多頻混合式傳輸系統的應用研究部分，主要研究目的在於探討利用直調單一顆DFB雷射產生多波長特性，與應用相位調變（PM）產生多波長取代多顆雷射，不但架構簡單、性能優異、大幅降低系統建構成本，且在應用上相當具有彈性，對於光纖微波及光纖到家應用而言，我們可得到相當低的誤碼率值；而對於光纖有線電視系統來說，同樣的可得到良好的載波雜訊比、載波二次合成拍差比、及載波合成三次拍差比參數性能。本論文所提出之多頻混合式傳輸系統提供了電信、網際網路、及有線電視等寬頻整體服務，對於先進光纖網路之應用將極具吸引力。

關鍵字

光纖有線電視 ； 光纖到家 ； 相位調變器 ； 光纖微波

並列摘要

With growing popularity of the handheld mobile device, the demand for wireless and wired transmission has at the same time increased by a large margin. Radio-over-Fiber (ROF), Fiber-to-the-Home (FTTH), and Fiber-Optic Cable Television (CATV) systems are communication arrangements with future development and application potential, which are capable of satisfying the demand for wireless and wire-optic internet. The radio-over-fiber transport system utilizes the properties of fiber-optic high-bandwidth and low transmission loss and has the benefit of high speed transmission and economic efficiency. As for fiber to the home, it provides the “Last-Mile” solution for fiber-optic internet. In addition, to the household user, through the fiber-optic cable television also benefits from the broadband internet.
In this thesis, the research will firstly cover three major types of transport systems: Radio-over-Fiber, Fiber-Optic Cable Television, and Fiber to the Home. Finally, through the integration of the three major systems mentioned above, the research moves to the direction of simultaneous transmission of radio-over-fiber / fiber to the home, fiber-optic cable television / radio-over-fiber, fiber-optic cable television / fiber to the home, and radio-over-fiber / fiber to the home / fiber-optic television multi-band hybrid transport system and so on; The multi-band hybrid transport system is the utilization of different wave length in a single-core optical fiber at the same time transporting three different signals including ROF RF/FTTH BB/CATV. Such is of great benefit for fiber-optic internet, as it can provide telecommunication, internet and cable TV services all at once. The research on the applications of this multi-band hybrid transmission system is mainly to explore the use of directly modulated single DFB laser and creating the property of multiple wave length, as well as the application of phase modulation, creating multiple bandwidths and replacing the use of multiple laser. Not only that the setup is simple, has better performance, and has greater reduction in the cost of system construction, it also has better flexibility in terms of application. As for the applications of radio-over-fiber and fiber to the home, we have obtained a very low level of bit error rate; The fiber-optic cable television also benefits from sound carrier to noise ratio, composite second order ratio, composite triple beat coefficient performance. The multi-band hybrid transmission system put forward by this thesis provides integrated service to telecommunications, internet, and cable television, as well as posing great attractiveness to the application of advanced fiber-optic internet.

並列關鍵字

Fiber Optical CATV ； Fiber-to-the-Home ； Phase Modulator ； Radio-over-Fiber

參考文獻

[1] C. H. Chang, H. H. Lu, H. S. Su, C. L. Shih, and K. J. Chen, “A broadband ASE light source-based full-duplex FTTH/ROF transport system”, Opt. Express, vol. 17, pp. 22246-22253, 2009.

[2] R. Llorente, T. Alves, M. Morant, M. Beltran, J. Perez, A. Cartaxo, and J. Marti, “Ultra-wideband radio signals distribution in FTTH nettworks”, IEEE Photon. Technol. Lett., vol. 20, pp. 945-947, 2008.

[4] H. H. Lu, H. C. Peng, W. S. Tsai, C. C. Lin, S. J. Tzeng, and Y. Z. Lin, “A bidirectional hybrid CATV/radio-over-fiber WDM transport system”, Opt. Lett., vol. 35, pp. 279-281, 2010.

[5] A. Murakoshi, K. Tsukamoto, and S. Komaki, “ High-performance RF signals transmission in SCM/WDMA radio-on-fiber bus link using optical FM method in presence of optical beat interference”, IEEE Trans. Microw. Theory and Techniques, vol. 54, pp. 967-972, 2006.

[7] K. Ikeda, T. Kuri, and K. I. Kitayama, “Simultaneous three-band modulation and fiber-optic transmission of 2.5-Gb/s baseband, microwave, and 60-GHz-band signals on a single wavelength”, J. Lightw. Technol., vol. 21, no. 12, pp. 3194-3202, 2003.