Optical frequency combs generated by four-wave mixing in a dual wavelength Brillouin laser cavity
Qing Li,
Zhi-xu Jia,
Zhen-rui Li,
Yue-de Yang,
Jin-long Xiao,
Shao-wu Chen,
Guan-shi Qin,
Yong-zhen Huang,
Wei-ping Qin
Affiliations
Qing Li
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
Zhi-xu Jia
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
Zhen-rui Li
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
Yue-de Yang
State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Jin-long Xiao
State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Shao-wu Chen
State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Guan-shi Qin
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
Yong-zhen Huang
State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Wei-ping Qin
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
We propose and demonstrate the generation of optical frequency combs via four-wave mixing in a dual wavelength Brillouin laser cavity. When pumped by two continuous-wave lasers with a varied frequency separation, dual wavelength Brillouin lasers with reduced linewidth and improved optical signal to noise ratios are generated in a direction opposite to the pump laser. Simultaneously, cavity-enhanced cascaded four-wave mixing between dual wavelength Brillouin lasers occurs in the laser cavity, causing the generation of broadband optical frequency combs with step tunable mode spacing from 40 to 1300 GHz. Compared to the cavity-less case, the number of the comb lines generated in the dual wavelength Brillouin laser cavity is increased by ∼38 times.
