Reciprocating optical modulation for millimeter-wave generation by using a dual-section fiber Bragg grating
Reciprocating optical modulation for millimeter-wave generation by using a dual-section fiber Bragg grating
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使用双段光纤布拉格光栅产生毫米波的往复光学调制
DOI：
10.1109/jlt.2002.800340
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发表时间：
2002
影响因子：
4.7
通讯作者：
M. Izutsu
中科院分区：
文献类型：
--
作者：
T. Kawanishi;S. Oikawa;M. Izutsu
我们研究了用于毫米波产生的往复式光学调制(ROM)。该系统由一个光学相位调制器和一对光学滤光片组成。从5 GHz电信号中获得了V波段毫米波调制的光波。产生的60 GHz毫米波的谱线宽小于300赫兹。利用模式耦合方程，对输出光波的光谱进行了理论计算。结果表明，频谱依赖于两个滤光片之间的光程长度，因此可以同时获得谐波产生和与基带信号的混频。通过向调制器施加基带信号来演示所产生的毫米波的强度调制，而不使用其他电或光调制器。
We investigated reciprocating optical modulation (ROM) for millimeter-wave generation. The system was composed of an optical phase modulator and a pair of optical filters. A lightwave modulated by V-band millimeter waves was obtained from a 5-GHz electric signal. The spectrum linewidths of the generated 60-GHz millimeter wave was smaller than 300 Hz. By using mode-coupling equations, the spectra of the output lightwave were theoretically calculated. It was shown that the spectra depend on the optical path length between the two optical filters, so that harmonic generation and mixing with baseband signals can be obtained simultaneously. Intensity modulation of the generated millimeter wave was demonstrated by applying a baseband signal to the modulator without using another electric or optical modulator.