摘要
Effects of second harmonic generation (SHG) and cascaded second harmonic generation/difference frequency generation (cSHG/DFG) based on the quasi-phase-matching (QPM) condition in periodically poled lithium niobate (PPLN) waveguide were investigated experimentally. SHG conversion efficiency of -13.6 dB and QPM bandwidth of 0.45 nm were achieved using a 16.1 dBm power of fundamental wave at 1550.4 nm. Using pulsed all-fiber passive mode locked laser and tunable continuous wave laser, cSHG/DFG effect utilized for optical sampling was observed. Conversion efficiencies were calculated, and 11.88 nm-wide QPM bandwidth was achieved through changing the wavelength of input signal. Conversion efficiency of cSHG/DFG effect increased linearly with the total injected power.
源语言 | 英语 |
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页(从-至) | 256-260 |
页数 | 5 |
期刊 | Journal of Beijing Institute of Technology (English Edition) |
卷 | 20 |
期 | 2 |
出版状态 | 已出版 - 6月 2011 |