Study on the spectral characteristics of the cascaded parametric conversion in a single cavity tandem multi-channel PPMgLNs-based optical parametric oscillator
- 41 Downloads
We report an acousto-optic Q-switched Nd:GdVO4 laser pumped flexibly tunable cascaded optical parametric oscillator (OPO) based on two separate multi-channel periodically poled magnesium oxide doped Lithium Niobate (PPMgLN). Even under lower pump power, long wavelength parametric output was found to be more easily generated than in single stage OPO. A cascaded idler output at 5.075 μm was found to be generated. A convenient method to monitor the occurring of the cascaded parametric process was also presented by measuring the spectrum of sum-frequency generation of the pump power and the cascaded signal power.
PACS numbers42.65.Ky 42.72.Ai 42.79.Nv
- 11.P. Jiang, S. Cai, B. Wu, D. Yang, J. Kong, and Y. Shen, “High-energy PPMgLN Optical Parametric Oscillator Pumped by a 1.064 μm E-O Q-switched Nd:YAG Laser,” Laser Phys. (in press).Google Scholar
- 13.S. S. Cai, B. Wu, H. B. Xu, J. W. Shen, and Y. H. Shen, “Study on Infrared Optical Parametric Oscillator Based on PPMgLN,” J. Infrared Millim. Waves 25, 338–341 (2006) (in Chinese).Google Scholar
- 14.Y. H. Shen, S. Alam, K. K. Chen, D. Lin, S. S. Cai, B. Wu, P. P. Jiang, A. Malinowski, and D. J. Richardson, “PPMgLN-based High-power Optical Parametric Oscillator Pumped By Yb3+-doped Fiber Amplifier Incorporates Active Pulse Shaping,” IEEE J. Sel. Topics Quantum Electron. (in press).Google Scholar
- 15.S. V. Garnov, S. A. Solokhin, E. D. Obraztsova, A. S. Lobach, P. A. Obraztsov, A. I. Chernov, V. V. Bukin, A. A. Sirotkin, Y. D. Zagumennyi, Y. D. Zavartsev, S. A. Kutovoi, and I. A. Shcherbakov, “Passive Mode-locking With Carbon Nanotube Saturable Absorber in Nd:GdVO4 and Nd:Y0.9Gd0.1VO4 Lasers Operating at 1.34 μm,” Laser Phys. Lett. 4, 648–651 (2007).CrossRefGoogle Scholar