Highly Efficient Wavelength Converter Using Direct-Bonded PPZnLN Ridge Waveguide
Highly Efficient Wavelength Converter Using Direct-Bonded PPZnLN Ridge Waveguide
复制标题
使用直接键合 PPZnLN 脊波导的高效波长转换器
DOI：
10.1109/jqe.2010.2045475
复制
发表时间：
2010
影响因子：
2.5
通讯作者：
M. Asobe
中科院分区：
文献类型：
--
作者：
T. Umeki;O. Tadanaga;M. Asobe
采用直接键合和干法刻蚀技术制备了周期性极化ZnO掺杂的LiNbO 3脊形波导。在泵浦功率为160 mW时，获得了2400%/W的二次谐波转换效率，并将92%的泵浦光转换为二次谐波光。利用制作的脊形波导研制了一种光纤耦合模块。脊形波导的高转换效率和高抗损伤性导致信号光和转换后的信号光的参量放大。模块的低插入损耗（-4 dB）和足够的参量转换增益（+8 dB）使我们能够实现具有+ 4 dB光纤到光纤增益的波长转换器，这意味着波长转换器工作时没有损耗。
We fabricated a periodically poled and ZnO-doped LiNbO3 ridge waveguide by employing direct bonding and dry etching techniques. We obtained a second-harmonic generation (SHG) conversion efficiency of 2400%/W, and converted 92% of the pump light into SH light at a pump power of 160 mW. We developed a fiber-coupled module using the fabricated ridge waveguide. The high conversion efficiency and high damage resistance of the ridge waveguide result in the parametric amplification of the signal and converted signal lights. The low insertion loss of the module (-4 dB) and sufficient parametric conversion gain (+8 dB) enable us to achieve a wavelength converter with + 4 dB fiber-to-fiber gain, which means the wavelength converter operates without loss.