Proposal of optically tunable and reconfigurable multi-channel bandstop filter using sum-frequency generation in a PPLN waveguide
Yuzhe Sun,
Zhefeng Hu,
Shuting Cheng,
Yachao Zhao,
Lingfang Wang,
Kaixin Chen,
Wenbao Sun
Affiliations
Yuzhe Sun
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Zhefeng Hu
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China; Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China; Corresponding author. School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China.
Shuting Cheng
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Yachao Zhao
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Lingfang Wang
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Kaixin Chen
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Wenbao Sun
Tianjin Jinhang Technical Physics Institute, Tianjin, 300308, China
A multi-wavelength bandstop filter is proposed and numerically demonstrated using the sum-frequency generation (SFG) process in a waveguide of periodically poled lithium niobate (PPLN). This proposed device achieves channels number reconfigurable, central filtering wavelength of each filtering channel independently tunable and extinction ratios (ERs) equalized via all-optical methods.
