Er^(3+)-Yb^(3+)-Tm^(3+)tri-doped La_(2)O_(3)-Al_(2)O_(3) glasses for low-power-consumption ultrawideband on-chip optical waveguide amplifiers  

作　　者：Zhengkai Li Mingjie Zhang Yuanzhi Chen Junchang Lu Zhanbo Wen Banghu Wei Mengyi Wang Jiayue Xu Qingli Zhang 

机构地区：[1]Shanghai Institute of Technology,School of Material Science and Engineering,Shanghai,China [2]Jinan University,College of Physics and Optoelectronic Engineering,Guangzhou,China [3]Nanyang Technological University,School of Electrical and Electronic Engineering,Singapore,Singapore [4]Chinese Academy of Sciences,Anhui Institute of Optics and Fine Mechanics,Hefei,China

出　　处：《Advanced Photonics Nexus》2024年第6期117-126,共10页先进光子学通讯(英文)

基　　金：supported by the National Natural Science Foundation of China(Grant No.62005098);the Fundamental Research Funds for the Central University(Grant No.11623415);the Guangzhou Science and Technology Planning Project(Grant No.202201010320).

摘　　要：In the field of short-range optical interconnects,the development of low-power-consumption,ultrawideband on-chip optical waveguide amplifiers is of critical importance.Central to this advancement is the creation of host materials that require low pump power and provide ultrabroadband emission capabilities.We introduce a tri-doped lanthanum aluminate glass(composition:5Er_(2)O_(3)-5Yb_(2)O_(3)-0.2Tm_(2)O_(3)-43.8La_(2)O_(3)-46Al_(2)O_(3)),which exhibits exceptional near-infrared(NIR)luminescence intensity,significantly outperforming other bands by 3 orders of magnitude.This glass can achieve an ultrawideband NIR gain spanning 478 nm,from 1510 to 1988 nm.Notably,the glass achieves positive optical gain with a low population inversion threshold(P>0.2),highlighting its efficiency and low-power consumption.The high glass transition temperature(Tg∼842°C)and large temperature difference(ΔT∼120°C)between Tg and the onset of crystallization(Tx)indicate excellent thermal stability,which is crucial for producing high-quality amorphous films for on-chip amplifiers.This research examines the unique energy levels and spectral properties of the Er^(3+)-Yb^(3+)-Tm^(3+) tri-doped glass,assessing its potential for use in ultrawideband on-chip optical waveguide amplifiers.This work lays the groundwork for low-power,ultrabroadband on-chip waveguide amplifiers,offering new avenues for short-range optical interconnect systems.

关 键 词：optical waveguide amplifier low-power-consumption ULTRAWIDEBAND host material 

分 类 号：TN2[电子电信—物理电子学]