Mode tailoring in a ridge-type periodically poled lithium niobate waveguide.
Mode tailoring in a ridge-type periodically poled lithium niobate waveguide.
复制标题
脊型周期性极化铌酸锂波导中的模式剪裁。
DOI:
10.1364/oe.18.007678
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发表时间:
2010
期刊:
影响因子:
3.8
通讯作者:
D. Ko
中科院分区:
文献类型:
--
作者:
Y. Lee;W. Shin;B. Yu;C. Jung;Y. Noh;D. Ko
We present a simple and powerful method for mode generation and transformation in a ridge-type periodically poled lithium niobate (PPLN) waveguide by the use of second-order nonlinear effect and local-temperature-control technique. We show that a Hermite-Gaussian (HG) mode wave (among HG(00) to HG(22)) can be selectively generated via the quasi-phase-matching (QPM) nonlinear process in a PPLN waveguide by tuning the wavelength of fundamental wave or the temperature of the waveguide. As well, it is demonstrated that HG mode can be transformed into Laguerre-Gaussian (LG) one via combination of HG modes which are simultaneously generated in a single PPLN waveguide with local-temperature-control technique.