On-chip integrated few-mode erbium–ytterbium co-doped waveguide amplifiers  

作　　者：XIWEN HE DEYUE MA CHEN ZHOU MINGYUE XIAO WEIBIAO CHEN ZHIPING ZHOU 

机构地区：[1]Aerospace Laser Technology and Systems Department,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [3]School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China [4]School of Microelectronics,Shanghai University,Shanghai 201800,China [5]State Key Laboratory of Advanced Optical Communications Systems and Networks,School of Electronics,Peking University,Beijing 100871,China

出　　处：《Photonics Research》2024年第5期1067-1077,共11页光子学研究（英文版）

基　　金：Key Program of the National Natural Science Foundation of China(62035001);Shanghai Science and Technology Innovation Action Plan(22dz208700);International Partnership Program of Chinese Academy of Sciences(18123KYSB20210013)。

摘　　要：We propose for the first time,to the best of our knowledge,an on-chip integrated few-mode erbium–ytterbium co-doped waveguide amplifier based on an 800 nm thick Si_(3)N_(4)platform,which demonstrates high amplification gains and low differential modal gains(DMGs)simultaneously.An eccentric waveguide structure and a co-propagating pumping scheme are adopted to balance the gain of each mode.A hybrid mode/polarization/wavelengthdivision(de)multiplexer with low insertion loss and crosstalk is used for multiplexing and demultiplexing in two operation wavebands centered at 1550 nm and 980 nm,where the light in these two bands serves as the signal light and pump light of the amplifier,respectively.The results demonstrate that with an input signal power of 0.1 mW,TE_(0)mode pump power of 300 mW,and TE_(1)mode pump power of 500 m W,the three signal modes(TE_(0)∕TM_(0)∕TE_(1))all exhibit amplification gains exceeding 30 dB,while maintaining a DMG of less than 0.1 dB.

关 键 词：waveguide PUMP amplifier 

分 类 号：TN722[电子电信—电路与系统]