本論文主要研製可應用於無線光纖(wireless-over-fiber)通信系統中光子積體傳輸器(integrated photonic transmitter)之射頻前端電路。此前端電路係包含三部份，其一乃利用偶極天線作為號角天線之饋入結構，其餘依序為寬頻帶通濾波器及寬頻帶止濾波器。該饋入結構與既有文獻相較下，不需於導波管結構進行任何機械加工或使用磅線(bond wire)即可於毫米波頻帶下達到低介入損耗(insertion loss)之高效率轉換，於製程中不僅成本要求較低且易於積體化；另外，基於簡單的開路及短路殘段觀念，寬頻帶通濾波器及帶止濾波器可輕易於毫米波頻段實現並達到相當良好的特性；最後，藉由等效電路描述，該光電轉換響應可直接藉由電路軟體求解並獲得精準數據。
為有效呈現高速無線資料傳輸之可行性，係將上述前端電路與近彈道單載子光檢測器(near-ballistic uni-travelling-carrier photodiode, NBUTC-PD)設計於W頻段中並進行積體化。由於此光子積體傳輸器具寬頻光電轉換頻寬之特性，於實際量測中，該電路可在高速數位訊號(20Gb/sec)操作下達成無線傳輸功能，此電路於現今固態製程相當容易實現且成本要求低廉，相信此電路在未來寬頻無線光纖通信系統應用中可找到其扮演角色。

In this thesis, a broadband, integrated photonic transmitter front-end is demonstrated. The front-end essentially comprises a dipole-based antenna feed structure for the transmitting horn antenna, a broadband bandpass filter (BPF), and a broadband bandstop filter (BSF). The proposed dipole-based antenna feed structure does not call for any modifications on the waveguide and bond wires on the structure for insertion loss reduction, which is critical for an easy and low-cost transmitter implementation in the milliliter-wave regime. The BPF and the BSF are easy to realize with simple open- and short- stubs. Furthermore, the equivalent circuit technique is exploited for characterizing optical-to-electrical (O-E) response of the photonic transmitter.
For experimental demonstration, the proposed front-end is integrated with a near-ballistic uni-travelling-carrier photodiode (NBUTC-PD) through flip-chip bonding for realization of a W-band integrated photonic transmitter poised for high-speed wireless data transmission. Owing to wide optical-to-electrical bandwidth of the NBUTC-PD integrated with the proposed front-end, the demonstrated photonic transmitter is of a high data rate up to 20 Gb/s and expected to find applications in the broadband wireless-over-fiber systems.

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