Chinese Optics Letters, 2016, 14 (1): 011403, Published Online: Aug. 6, 2018  

Observation of antiphase dynamics and harmonic resonance in a modulated dual-wavelength laser Download: 750次

Author Affiliations
1 Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 Institute of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
Abstract
We observe a nonlinear response of a dual-wavelength Nd:YAG laser when subjected to low-frequency periodic modulations of cavity losses. The modulation frequency is far from the relaxation oscillation frequency. The harmonic resonances of the two laser wavelengths associated with antiphase intensity oscillations are demonstrated and resonances up to the fourth order were observed. For relatively weak modulation, the intensity oscillation frequency of the laser is equal to the modulation frequency. Harmonic resonances occur under a stronger modulation. We find that more harmonic components appear when the modulation frequency is increased. Furthermore, with enhancing the modulation, the dominant frequency of the intensity oscillations of both wavelengths is shifted toward the higher-order harmonic frequency.

Huibin Chen, Ge Zhang, Wenbin Liao, Bingxuan Li, Xiaolei Wang, Zhenqiang Chen. Observation of antiphase dynamics and harmonic resonance in a modulated dual-wavelength laser[J]. Chinese Optics Letters, 2016, 14(1): 011403.

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