32x32 絕緣層上矽晶陣列式波導光柵應用之研究

Study of 32x32 Arrayed Waveguide Grating Based on SOI

柯智瀚(Chih-Han Ko)

指導教授 ： 曹士林

國立臺灣師範大學/理學院/光電科技研究所/碩士(2003年)

摘要

本文提出利用絕緣層上矽晶並結合陣列波導光柵及電光相位調製器組成之32×32陣列式波導光柵波長交換器。在陣列式波導光柵，我們利用陣列波導間之固定光程差產生空間及波長之分波效應並分析其陣列波導在自由傳佈區接面之波導間距對系統插入損失及串音之影響，並分析漸寬式波導在輸入及輸出埠與自由傳佈區接面對系統之影響。本文亦推導出放置於相位陣列波之電光相位調變器對陣列波導光柵之影響，並討論對各相位波導調變藉以讓陣列式波導光柵產生新的功能。
在32×32陣列式波導光柵波長交換器，我們著重提出一有效的路由自動交換方式藉由結合陣列式波導光柵及電光相位調置器區所組成之陣列波導交換器，我們在相位陣列式波導兩側摻雜如週期排列的硼和磷離子，再利用電壓調變位於相位陣列式波導之電光相位調置器之雜質的濃度變化，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，以達到可控制特定波長信號的路由路徑。接著，我們將此可調式32×32陣列波導光柵交換器應用於高密度分波多工的傳輸網路系統中，如此可達到充分利用有限的波長資源的目的。

關鍵字

陣列式波導光柵 ； 相位調製器 ； 絕緣層上矽晶 ； 波長交換開關 ； 波長平移 ； 漸寬式波導

並列摘要

In this thesis, we design a 32×32 Arrayed Waveguide Grating (AWG) wavelength switch which combines arrayed waveguide grating and electrooptic phase modulator based on silicon-on-insulator (SOI) wafer. In arrayed waveguide grating, we use the technique of the constant path length difference at adjacent waveguide of waveguide array to realize the spatial and spectrum division, and discuss the waveguide separation influence at the junction of free propagation region and arrayed waveguide. We also concern the insertion loss and crosstalk affected by tapered waveguide at the interface between the input/output waveguide and free propagation region. We derive the phase term effect at the waveguide array of the arrayed waveguide grating, and with different modulation method to let arrayed waveguide grating get a new function.
In 32×32 AWG wavelength switch, we focus on the new technology of router. The 32×32 AWG wavelength switch which combines AWG structure and electrooptic phase modulation structure. The boron and phosphorus ions are assumed doping on aside of waveguide array and add voltage to change the carrier concentration distribution. By changing carrier concentration distribution, the index can be changed. We can switch the specific wavelength form the output port of waveguide. We apply such a device into a optical network using finite wavelength channel numbers.

並列關鍵字

AWG ； Phase Modulator ； SOI ； Wavelength Switch ； Wavelength Shift ； Tapered Waveguide

參考文獻

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[7] S. Kamei, M. Ishii, T. Kitagawa, M. Itoh and Y. Hibino, “64-channel ultra-low crosstalk arrayed-waveguide grating multi/demultiplexer module using cascade connection technique,” IEEE Electronics Letters, vol. 39, no. 1, pp.81-82, January 2003