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Cascaded four-wave mixing all-optical wavelength converter based on highly nonlinear fiber deposited graphene oxide

Journal of Materials Science & Technology 2024年第4期171卷 10-15页

作者： Yuanhongliu Gao Xiaoyu Chen Tonglei Cheng Fang Wang Xin Yan College of Information Science and Engineering State Key Laboratory of Synthetical Automation for Process IndustriesNortheastern UniversityShenyang 110819China

The all-optical wavelength conversion using cascaded four-wave mixing(FWM)phenomena with graphene oxide(GO)and a highly nonlinear fiber(HNLF)device is demonstrated *** has a strong third-order nonlinear effect and is an excellent nonlinear optical material for nonlinear optical wavelength *** group velocity matching of pump and signal,HNLF,and GO amplification promote the cascaded nonlinear frequency mixing *** the experimental and analytical results,the maximum spacing between signal and pump is 21 nm,and specifically,the order of cascaded FWM light increases from order 1 to order 2 with increasing GO,and the first-order FWM conversion effi-ciency increases to a maximum of−14.5 *** the best of our knowledge,this is the first time that cascaded FWM-based all-optical wavelength conversion in HNLF-GO with wide wavelength selectivity is investigated with combined pump and signal *** findings not only provide an effective method for achieving all-optical wavelength conversion in cascaded FWM but also offer the possibility of fabricating high-performance nonlinear optical devices.

关键词： Four-wave mixing Graphene oxide highly nonlinear fiber Optical wavelength conversion

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Experimental investigation into conversion efficiency of cascading four-wave mixing

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Frontiers of Optoelectronics 2010年第3期3卷 253-259页

作者： Liang ZHAO Junqiang SUN Wuhan National Laboratory for optoelectronics College of Optoelectronic Science and Engineering Huazhong University of Science and Technology

We have proposed and experimentally demonstrated a scheme for cascading four-wave mixing(CFWM)by exploiting nonlinearity in highly nonlinear fiber(HNLF). Through utilizing optical spectrum analyzer(OSA), the second-order sideband products are observed in our experiment by only launching two waves into HNLF, and the conversion efficiency from the injected wave to each sideband is discussed in detail. It is found that only the conversion efficiency of the satellite wave will be increased with the power of the tunable injected wave when the power and the wavelength of the other one are fixed. Furthermore, the conversion efficiency of all the sidebands will be decreased with the absolute value of detune of injected wavelengths increasing. Also, the authors have demonstrated that the power of the satellite wave will be influenced most among all the sidebands if tuning the injected wave power. The proposed scheme can find potential applications in parametric amplification,frequency conversion, and optical quantum-information processing.

关键词： highly nonlinear fiber cascading four-wave mixing optical spectrum analyzer conversion efficiency

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Theoretical demonstration for signal gain in multiple four-wave mixing processes based on cubic susceptibility medium

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Frontiers of Optoelectronics 2010年第3期3卷 270-282页

作者： Liang ZHAO Junqiang SUN Zhefeng HU Qian HU Yujie ZHOU Jing SHAO Tianye HUANG Jun LI Wuhan National Laboratory for Optoelectronics College of Optoelectronic Science and Engineering Huazhong University of Science and Technology

An insight into the signal gain in multiple fourwave mixing(MFWM) processes based on a cubic susceptibility medium is theoretically proposed and demonstrated. A dual-pumped fiber optical parametric amplification(FOPA) model is developed with the exact expressions for the signal gain and its 3-dB bandwidth successfully yielded. With these analytical expressions, we show that when pump-1 and pump-2 wavelengths tuned at 1549 and 1551.02 nm, the 3-dB bandwidth of the signal gain can be achieved at about 2253.4 nm theoretically by properly setting the pumped powers. Numerical simulations show that there is a small pinnacle emerging in the signal gain spectrum owing to the degenerate OPA process occurring. The proposed OPA model can find potential applications in all-optical wavelength conversion, optical amplifier, and all-optical sampling.

关键词： fiber optical parametric amplification (FOPA) four-wave mixing highly nonlinear fiber signal gain spectrum 3-dB bandwidth

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