Abstract
Because they cover the important transparent window of the atmosphere and nearly all fundamental rovibrational absorption bands of molecules, mid-infrared lasers have been widely used in the areas of environmental monitoring, medical diagnosis and counter-measurement[
Although mid-infrared CW DFG sources have been extensively researched, their pump-to-idler conversion efficiency was relatively low compared with OPOs, which resulted from the low single-pass parametric gain. Furthermore, a signal laser around
The experimental setup is shown in Figure
Sign up for High Power Laser Science and Engineering TOC. Get the latest issue of High Power Laser Science and Engineering delivered right to you!Sign up now
To make effective use of the high-power intracavity signal beam for realizing efficient DFG, the DFG process needs to satisfy phase-matching conditions. Using the often-cited
According to the simulation results, the PPLN was heated to
The 3.1 and
In conclusion, we have proposed a new scheme for realizing efficient mid-infrared generation using phase-matched intracavity DFG in a PPLN-based OPO. Two fiber lasers fixed at 1018 and 1080 nm were adopted as pump sources. One fiber laser worked as the assisted laser at maximum power to build parametric oscillation and generate an intracavity signal beam, while the other one worked at low power to participate in DFG between it and the signal beam. To realize efficient DFG, the PPLN temperature was appropriately tuned to
References
[1] K. P. Petrov, L. Goldberg, W. K. Burns, R. F. Curl, F. K. Tittel. Opt. Lett., 21, 86(1996).
[2] U. Willer, M. Saraji, A. Khorsandi, P. Geiser, W. Schade. Opt. Lasers Eng., 44, 699(2006).
[3] H. H. P. T. Bekman, J. C. van den Heuvel, F. J. M. van Putten, H. M. A. Schleijpen. Proc. SPIE, 5615, 27(2004).
[4] H. Wu, P. Wang, J. Song, J. Ye, J. Xu, X. Li, P. Zhou. Opt. Express, 26, 6446(2018).
[5] A. Aadhi, V. Sharma, R. P. Singh, G. K. Samanta. Opt. Lett., 42, 3674(2017).
[6] A. Ly, C. Siour, F. Bretenaker. Opt. Express, 25, 9049(2017).
[7] M. E. Klein, P. Gross, K.-J. Boller, M. Auerbach, P. Wessels, C. Fallnich. Opt. Lett., 28, 920(2003).
[8] Q. H. Mao, J. Jiang, X. Q. Li, J. H. Chang, W. Q. Liu. Laser Phys. Lett., 6, 647(2009).
[9] K. Krzempek, G. Sobon, J. Sotor, G. Dudzik, K. M. Abramski. Laser Phys. Lett., 11, 105103(2014).
[10] L. Goldberg, W. K. Burns, R. W. McElhanon. Opt. Lett., 20, 1280(1995).
[11] S. Guha, J. O. Barnes, L. P. Gonzalez. Opt. Lett., 39, 5018(2014).
[12] J. Zhao, F. Jia, Y. Feng, J. Nission. IEEE J. Sel. Top. Quantum Electron., 24, 3100208(2018).
[13] G. J. Edwards, M. Lawrence. Opt. Quant. Electron., 16, 373(1984).
[14] D. H. Jundt. Opt. Lett., 22, 1553(1997).
[15] G. K. Samanta, A. Aadhi, M. Ebrahim-Zadeh. Opt. Express, 21, 9520(2013).
[16] M. Vainio, J. Peltola, S. Persijn, F. J. M. Harren, L. Haolnen. Appl. Phys. B, 94, 411(2009).
[17] Y. Shang, J. Xu, P. Wang, X. Li, P. Zhou, X. Xu. Opt. Express, 24, 21684(2016).
Set citation alerts for the article
Please enter your email address