铌酸锂
分路器
绝热过程
消光比
材料科学
极化(电化学)
偏振旋转器
光学
光电子学
双折射
物理
波长
波导管
化学
热力学
物理化学
作者
Haozhi Luo,Zhiyan Chen,Hao Li,Li-Feng Chen,Ya Han,Zhongjin Lin,Siyuan Yu,Xinlun Cai
出处
期刊:IEEE Photonics Technology Letters
[Institute of Electrical and Electronics Engineers]
日期:2021-12-15
卷期号:33 (24): 1423-1426
被引量:7
标识
DOI:10.1109/lpt.2021.3123101
摘要
We propose and experimentally demonstrate a high-performance polarization splitter-rotator based on the lithium niobate-on-insulator platform, consisting of an adiabatic taper, an asymmetric directional coupler, and a multimode interference mode splitter. Two injecting modes with orthogonal polarization states were separated, and the transverse magnetic (TM) polarization state was rotated to the transverse electric (TE) polarization state simultaneously. The designed device is fabricated in a single-step etching process, providing an extinction ratio of 20 dB over 80 nm wavelength range and insertion loss of less than 0.65 dB for both TE 0 and TM 0 modes launched. Lithium niobate-on-insulator, polarization splitter-rotator, extinction ratio.
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