| 研究生: |
王心平 Hsin-Pin Wang |
|---|---|
| 論文名稱: |
利用射頻技術實現混合乙太數位及射頻訊號之單波長光纖通訊系統 An Implementation of Hybrid Systems Using RF Technique in Single Wavelength Fiber Optic Communications |
| 指導教授: |
詹益仁
Yi-Jen Chan |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
資訊電機學院 - 通訊工程學系 Department of Communication Engineering |
| 畢業學年度: | 93 |
| 語文別: | 中文 |
| 論文頁數: | 69 |
| 中文關鍵詞: | 馬克干赫 、混合訊號 、次載波 、光纖通訊 、單波長 、調變技術 |
| 外文關鍵詞: | hybrid signal, single wavelength, modulation technique, Mach-Zehnder, subcarrier, fiber optic communication |
| 相關次數: | 點閱:8 下載:0 |
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在本論文中,首先對應用於系統實現上的光電元件、射頻元件進行驗證及設計,因此對各種不同的量測平台的架設,已在光對電、電對光、或是純電性的上量測得到實際參數。
為實現兩個混合訊號單波長光纖通訊系統,緊接著介紹系統中採用的訊號標準,其中包含了數位訊號的SONET標準及應用於GSM系統的訊號品質界定標準,以為系統實現上可以提供具參考價值的量測依據,並且能界定系統實現上的可行性。
接著再將驗證過的元件,因應其元件特性,應用於兩個系統實現上,第一個系統是以傳統次載波調變技術,搭配射頻技術實現單一波長傳遞符合標準的乙太數位及GSM系統應用的射頻GMSK(Gaussian minimum shift keying)調變訊號,因此在此數位訊號的寬頻特性上,如何實現與射頻訊號整合的次載波調變是研究的重點,並且應用既有的純電性模擬程式建立光電轉換及光纖通道的模型,並且搭配射頻元件的模型,以進行系統評估;接下來對馬克干赫電光調變器進行一系列的分析及大訊號操作混合小訊號應用進行推導其模型,並且利用馬克干赫電光調變器的元件特性,來開發另一個名為二次光調變技術,並應用於系統上,使得數位光訊號可以與射頻電訊號同時整合,實現單波長光纖傳輸連結。
The implementation of fiber optic link with single wavelength is studied in this thesis. When a system was built, many employed components should be verified. Based on this purpose, the measuring benches of optoelectronic and radio frequency (RF) devices must be constructed for getting real parameters.
In the following topic, the standards of synchronous optical network (SONET) and global system for mobile communications (GSM) with Gaussian minimum shift keying (GMSK) modulation are described, because the implemented single wavelength fiber optic systems which operated in hybrid mode need a monitoring basis.
Using the verified components and standing on the standards of digital and modulated RF signals, a subcarrier modulation (SCM) system which comforted to SONET and GSM is implemented. The known broadband in spectrum of digital signal and the narrowband of carried GSM signal by RF tone are adopted, so how the microwave techniques applied to this system is our study goal. The estimating method of link which contains the electrical domains of transmitter and receiver, the electrical to optical (EO) conversion, the fiber channel, and the optical to electrical (OE) conversion, based on purely electrical simulator was also built in this topic.
Next, a Mach-Zehnder electrical to optical modulator (MZ-EOM or MZM) was analyzed. An analysis of electrical small signal model with varying optical large signal model was processed. According to this innovating definition, a double optical modulation (DOM) technique applied to implementation of SCM was proposed. The digital signal in optical domain and the modulated GMSK RF tone in electrical domain were directly combined by a MZ-EOM and simultaneously propagated through a fiber channel in a single wavelength window.
[01]John Gowar, “Optical Communication Systems”, Prentice Hall, 1993
[02]Chamorro-Posada, P., Fraile-Pelaez, F.J., Gomez-Alcala, R., Pastor, D., “Performance Analysis of Optical Prefiltering SCM Systems by Accurate Spectral Technique”, Photonics Technology Letters, IEEE Volume 12, Issue 1, Jan. 2000 Page(s):85 - 87
[03]Mohd Fairuz Yusof, Al-Qdah, Siti Barirah Anas, Mohamad Khazani Abdullah, “Increasing Optical Fiber Transmission Bandwidth Using SCM-WDM Technique”, Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on Volume 3, 21-24 Sept. 2003 Page(s):1205 - 1208 Vol.3
[04]Kamisaka, T., Kuri, T., Kitayama, K., “Simultaneous Modulation and Fiber-Optic Transmission of 10Gb/s Baseband and 60GHz –Band Radio Signals on a Single Wavelength”, Microwave Theory and Techniques, IEEE Transactions on Volume 49, Issue 10, Oct. 2001 Page(s):2013 - 2017
[05]Martinez, A., Polo, V., Marti, J., “Simultaneous Baseband and RF Optical Modulation Scheme for Feeding Wireless and Wireline Heterogeneous Access Networks”, Microwave Theory and Techniques, IEEE Transactions on Volume 49, Issue 10, Oct. 2001 Page(s):2018 - 2024
[06]Dennis Derickson, “Fiber Optic Test and Measurement”, Hewlett-Packard Professional Books, Prentice Hall, 1998
[07]“A Brief Introduction to Jitter in Optical Receivers”, Application Note of MAXIM, 2000
[08]“Jitter in Digital Communication System Part.1 and Part.2”, Application Note of MAXIM, 2001
[09]“Accurately Estimating Optical Receiver Sensitivity”, Application Note of MAXIM, 2001
[10]“Optical Signal-to-Noise Ratio and the Q-Factor in Fiber Optic Communication Systems”, Application Note of MAXIM, 2002
[11]Schild, A.; Rein, H.-M., Mullrich, J., Altenhain, L., Blank, J., Schrodinger, K., “High Gain SiGe Transimpedance Amplifier Array for a 12?10Gb/s Parallel Optical Fiber Link”, Solid-State Circuits, IEEE Journal of Volume 38, Issue 1, Jan. 2003 Page(s):4 - 12
[12]Muhammad Taher, “Large Signal Analysis of the Mach-Zehnder Modulator with Variable Bias”. Proc. Natl. Sci. Counc. ROC(A), 2001
[13]Mitomi, O., Noguchi, K., Miyazawa, H., “Estimation of Frequency Response for High-Speed LiNbO3 Optical Modulator”, Optoelectronics, IEE Proceedings-Volume 146, Issue 2, April 1999 Page(s):99 - 104
[14]David M. Pozar, “Microwave Engineering”, Wiley, 2005
[15]Reinhold Ludwig, Pavel Bretchko, “RF Circuit Design”, Prentic Hall, 2000
[16]Gerd Keiser, “Optical Fiber Communications”, McGraw-Hill, 2000
[17]ANSI T1.105.06 Specification
[18]ITU-T G.957 Specification
[19]Betts, G. E., “Linearized Modulator for Suboctave Bandpass Optical Analog Links”, Microwave Theory and Techniques, IEEE Transactions on Volume 42, Issue 12, Dec 1994 Page(s):2642 - 2649
[20]Cox, C., III., Ackerman, E., Helkey, R., Betts, G.E., “Direct Detection Analog Optical Links”, Microwave Theory and Techniques, IEEE Transactions on Volume 45, Issue 8, Aug. 1997 Page(s):1375 - 1383
[21]Jung-Kuan Tseng, “A Direct Conversion Transceiver for Dual-Band GSM Design”, Tam Kang University, 2003
[22]Bowers, J., Chipaloski, A., Boodaghians, S., Carlin, J., “Long Distance Fiber-Optic Transmission of C-band Microwave Signals to and from a Satellite Antenna”, Lightwave Technology, Journal of Volume 5, Issue 12, Dec 1987 Page(s):1733 - 1741
[23]Sedra Smith, “Microelectronic Circuits”, Oxford, 1998