SOI波導可調式光分插復用器作為分波多工光網路之應用

Study of Optical Tunable Add-Drop Multiplexer Based on SOI Waveguide in WDM network

田章鴻(Jiang-Hung Tien)

指導教授 ： 曹士林

元智大學/工程學院/電機工程學系/碩士(2002年)

摘要

傳統的可調式光分插器，必須用解多工器將所有波長分別獨立，再透過電路控制選擇要下載的波長，如果用我們所設計的可調式光分插器來取代解多工器，則不須將個別波長分別獨立，本文提出利用結合布拉格光柵及多模干涉區所組成之光分插復用器元件，我們在布拉格光柵兩側摻雜硼和磷離子，再利用電壓調變布拉格光柵中雜質的濃度變化，利用雜質的變化來改變折射率，藉此從波導中取出特定信號，並於此論文探討其傳送功率值、串音干擾及在功率有百分之八十以上的波長波帶寬度。
接著，我們將此可調式光分插復用器應用於高密度分波多工的保護網路系統中，我們設計出結合可調式光分插復用復用器結合積體光電開關的元件，此元件可運用在保護網路上。利用這新的可調式光分插復用器，可以有效的減少串音干擾，並可達到可提供任意選擇上、下路波長，如此才可充分利用有限的波長資源。

關鍵字

光分插器 ； 光纖通訊 ； 積體化

並列摘要

In traditional tunable optical add-drop multiplexer, it is necessary to separate wavelengths by demultiplexer. By electric circuits, the individual wavelength is dropped. We use our tunable optical add-drop multiplexer to replace the demultiplexer because it does not separate wavelengths. Here, we design an tunable optical add-drop multiplexer which combines Bragg-grating structure and multimode interferenc
e structure. We dope the boron and phosphorous ions beside Bragg-grating structure and add voltages to change the carrier concentration distribution. By changing carrier concentration distribution, the index will change. We can drop the paricular wavelength from waveguide. The propagation loss, cross talk and wavelength span widths are discussed in this thesis.
The tunable optical add-drop multiplexer is applied of optical channel protected network. We conbine our tunable optical add-drop multiplexer with optical integrated switch to select arbitrary wavelength for saving wavelength channels.

並列關鍵字

OADM ； optical ； integrated

參考文獻

[1] A. A. M. Saleh, J. M. Simmons, “Architectural principles of optical regional and metropolitan access networks, J. of Lightwave Technology, vol. 17, Issue: 12 , pp. 2431-2448, 1999.

[2] H.Yoshimura, K. L. Sato, and N. Takachio, “Future photonic transport networks based on WDM technologies,” IEEE Communications Magazine , vol. 37, Issue: 2 ,pp. 74-81, 1999.

[4] A. Sneh, J. E. Zudker, B. I. Miller, and L. W. Stulz, “Polarization-insensitive InP-based MQW digital optical switch”, IEEE Photonics Technology Letters, vol. 9, Issue: 12, pp. 1589-1591, 1997.

[5] T. Kirihara, M. Ogawa, H. Inoue, and K. Ishida, “Lossless and low-crosstalk characteristics in an InP- based 2x2 optical switch”, IEEE Photonics Technology Lett., vol. 5, Issue: 9, pp. 1059-1061, 1993.

[6] F. Dorgeuille, B. M. Feuillade, S. Sainson, S. Slempkes, and Foucher, “Novel approach for simple fabrication of high-pref ormance InP-switch matrix based on laser-amplifier gates”, IEEE Photonics Technology Lett., pp. 1178-1180, 1996.