無線光纖整合通訊網路之微波功率放大：一建構於非線性半導體雷射動態的光電技術與系統

本研究利用半導體雷射的週期一非線性動態，於無線光纖整合通訊網路中，進行微波訊號之功率放大。本系統只需一典型的半導體雷射為主要元件，可針對小於25 GHz至大於60 GHz的頻率範圍進行微波功率放大，其功率增益可由小於10 dB連續調整至大於30 dB。功率放大前後的微波線寬與相位雜訊大致保持相同，使放大後的訊雜比最高可達至少25 dB的提升。經放大後的數據資料，以最高可達至少15 dB的較低光功率達到10^(-9)誤碼率，大幅提升數據資料檢測的靈敏度。

關鍵字

半導體雷射；週期一非線性動態；微波功率放大；無線光纖整合通訊網路

並列摘要

This study investigates the period-one nonlinear dynamics of semiconductor lasers to achieve photonic microwave amplification in radio-over-fiber links through optical modulation depth improvement. In our scheme, only typical semiconductor lasers are required as the amplification unit. The amplification is achieved for a broad microwave range, from less than 25 GHz to more than 60 GHz, and for a wide gain range, from less than 10 dB to more than 30 dB. The microwave phase quality is mainly preserved while the microwave power is largely amplified, improving the signal-to-noise ratio up to at least 25 dB. The bit-error ratio at 1.25 Gb/s is better than 10^(-9) and a sensitivity improvement of up to at least 15 dB is feasible.

並列關鍵字

Semiconductor laser ； Period-one dynamics ； Photonic microwave amplification

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