Tunable frequency upconversion based on a directly modulated DFB-LD and FP-LD injection  

作　　者：王菊 李知峰 吴穹 王文睿 贾石 于晋龙 

机构地区：[1]Laboratory of Optical Fiber Communication,School of Electrical and Information Engineering,Tianjin University

出　　处：《Chinese Optics Letters》2014年第10期31-34,共4页中国光学快报（英文版）

基　　金：supported in part by the National Basic Research Program of China(No.2012CB315704);the Specialized Research Fund for the Doctoral Program of Higher Education(NO.20120032130010)

摘　　要：We show a simple, convenient, and cost-effective scheme for tunable frequency upconversion at millimeterwave band without a local oscillator. By launching a 2.5-Gb/s directly modulated baseband signal into a Fabry-Perot laser diode （FP-LD）, the mode of the FP-LD is locked by the high-order sideband of the injected signal. The beating frequency of the injection-locked mode and the injected signal can generate upconversion subcarriers. In our experiment, tunable frequency subcarriers of 28.4, 29.3, and 30.5 GHz are obtained without any radio-frequency local oscillator. The single sideband phase noises of -83.88, -76.36, and -78.54 dBc/Hz @ 10 kHz （at 28.4-, 29.3-, and 30.5-GHz subcarriers, respectively） are shown. The proposed scheme has potential to generate much higher frequency carriers.We show a simple, convenient, and cost-effective scheme for tunable frequency upconversion at millimeterwave band without a local oscillator. By launching a 2.5-Gb/s directly modulated baseband signal into a Fabry-Perot laser diode （FP-LD）, the mode of the FP-LD is locked by the high-order sideband of the injected signal. The beating frequency of the injection-locked mode and the injected signal can generate upconversion subcarriers. In our experiment, tunable frequency subcarriers of 28.4, 29.3, and 30.5 GHz are obtained without any radio-frequency local oscillator. The single sideband phase noises of -83.88, -76.36, and -78.54 dBc/Hz @ 10 kHz （at 28.4-, 29.3-, and 30.5-GHz subcarriers, respectively） are shown. The proposed scheme has potential to generate much higher frequency carriers.

关 键 词：Cost effectiveness Locks (fasteners) Millimeter waves 

分 类 号：TN929.1[电子电信—通信与信息系统]