Title :
LATERAL-mode-beating for Terahertz excitation in 1.5-µM DBR laser
Author :
Limeng Zhang ; Liqiang Yu ; Biwei Pan ; Dan Lu ; Song Liang ; Jaoqing Pan ; Lingjuan Zhao
Author_Institution :
Key Lab. of Semicond. Mater. Sci., Inst. of Semicond., Beijing, China
Abstract :
We report a Terahertz (THz) excitation source based on a dual-lateral-mode ridge-waveguide Distributed Bragg Reflector laser (DBR) with an optimized 4 μm ridge width in the 1.5-μm range. Dual-lateral-mode generation and beating are verified experimentally. In the experiments, Terahertz signals of 1.133 THz, 1.134 THz, 1.235 THz and 1.24 THz are obtained under different bias conditions. The two wavelengths can be tuned continuously with small strength difference (<; 5 dB) and high side-mode suppression ratio ( SMSR > 45 dB).
Keywords :
distributed Bragg reflector lasers; laser modes; microwave photonics; terahertz wave generation; bias conditions; dual-lateral-mode ridge-waveguide distributed Bragg reflector laser; high side-mode suppression ratio; lateral-mode-beating; terahertz excitation source; wavelength 1.5 mum; Correlation; Distributed Bragg reflectors; Optical fiber communication; Optical fibers; Optical pulses; Distributed Bragg reflector laser; dual-modes; lateral mode; terahertz (THz) generation;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2015 14th International Conference on
Conference_Location :
Nanjing
DOI :
10.1109/ICOCN.2015.7203692
