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Optical Engineering

Multiwavelength midinfrared difference frequency generation based on a uniform grating periodically poled lithium niobate
Author(s): Jianhua Chang; Chuang Zhang; Zaihong Tao; Yixian Ge
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Paper Abstract

A multiwavelength midinfrared quasi-phase-matched (QPM) difference frequency generation (DFG) scheme is proposed based on a segmented temperature controlling technique for the uniform grating periodically poled lithium niobate (PPLN). The QPM DFG output performances have been investigated under the fixed pump and signal wavelength conditions, respectively. Our theoretical results show that when the pump wavelength is fixed at 1.08 μm, three idler QPM bands, located at 3.46, 3.50, and 3.57 μm, have been obtained, where the temperatures of the three PPLN segments with the same length are set at 20°C, 70°C, and 100°C. However, when the signal wavelength is fixed at 1.58 μm, six idler QPM bands, located at 2.95, 3.06, 3.14, 3.63, 3.72, and 3.83 μm, have been achieved with the same crystal temperature distribution of 20°C, 70°C, and 100°C.

Paper Details

Date Published: 10 September 2013
PDF: 6 pages
Opt. Eng. 52(9) 096107 doi: 10.1117/1.OE.52.9.096107
Published in: Optical Engineering Volume 52, Issue 9
Show Author Affiliations
Jianhua Chang, Nanjing Univ. of Information Science & Technology (China)
Chuang Zhang, Nanjing Univ. of Science and Technology (China)
Zaihong Tao, Nanjing Univ. of Information Science & Technology (China)
Yixian Ge, Nanjing Univ. of Information Science & Technology (China)


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