公开(公告)号：US20150244331A1

公开(公告)日：2015-08-27

申请号：US14469166

申请日：2014-08-26

Applicant: NATIONAL CHENG KUNG UNIVERSITY

Inventor： Sheng-Kwang HWANG ,  Yu-Han HUNG

IPC: H03F3/08 ,  H03F3/21

CPC classification number: H03F3/08 ,  G02F1/3538 ,  H01S5/0623 ,  H01S5/5054 ,  H03F2200/393 ,  H04B10/25759

Abstract: Period-one nonlinear dynamics of semiconductor lasers are utilized to provide an apparatus for photonic microwave power amplification in radio-over-fiber links through optical modulation depth improvement. The microwave power amplification apparatus includes a microwave-modulated optical signal generation module and a microwave power amplification module. The amplification capability of the present microwave power amplification apparatus covers a broad microwave range, from less than 25 GHz to more than 60 GHz, and 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.

Abstract translation: 半导体激光器的周期性非线性动力学被用于通过光调制深度改进来提供用于光纤无线电链路中的光子微波功率放大的装置。 微波功率放大装置包括微波调制光信号发生模块和微波功率放大模块。 本微波功率放大装置的放大能力涵盖从小于25GHz到大于60GHz的宽微波范围，以及从小于10dB到大于30dB的宽增益范围。 微波相位质量主要保持在微波功率大幅度放大，提高信噪比达到至少25 dB。 1.25 Gb / s的误码率优于10-9，灵敏度提高至少达到15 dB是可行的。