Accurate Millimeter-Wave Laser Phase Noise Measurement Technique

被引：5
|
作者：
Khayatzadeh, Ramin [1 ]
Rzaigui, Habeb [1 ]
Poette, Julien [1 ]
Cabon, Beatrice [1 ]
机构：
[1] Grenoble INP MINATEC, IMEP LAHC, Inst Microelect Electromagnetisme & Photon, F-39016 Grenoble, France
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 13期
关键词：
Fast Fourier Transform (FFT); frequency demodulation; passively mode-locked laser diode (PMLLD); phase noise; Power Spectral Density (PSD); radio over fiber (RoF); AMPLITUDE;
D O I：
10.1109/LPT.2013.2263378
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, a method based on time sampling and signal processing is proposed to measure the phase noise of any unstable optically generated carrier. We could overcome the difficulties of measuring the phase noise of a passively mode-locked laser output signal with 60-GHz repetition frequency due to frequency instability by replacing a spectrum analyzer with a digital storage oscilloscope, which samples signal in time domain. A mathematical approach based on frequency demodulation is used to separate the phase noise and the amplitude noise in measurements. The precision of this method has been validated by comparing the measured results with the commercial tool measurements.
引用
收藏
页码：1218 / 1221
页数：4
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