Gain-Enhancement Strategy for C-Band Polymer Waveguide Amplifiers via Dual-Wavelength Pumping
- 1State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, College of Integrated Circuits, Jilin University, Changchun 130012, China
- 2Key Laboratory of Atomic and Subatomic Structure and Quantum Control (Ministry of Education), School of Physics, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Material, Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
Abstract
Optical waveguide amplifiers are vital for on-chip loss compensation in photonic integrated circuits (PICs). Although C-band waveguide amplifiers have been widely studied, achieving high gain remains a considerable challenge. In this work, we present a gain-enhancement strategy based on core-shell nanoparticles (NPs) co-doped with multiple rare-earth ions (NaYbF4:Er3+, Ce3+@NaYF4:Yb3+, Nd3+). Efficient energy transfer from Nd3+ to Yb3+ ions significantly boosts the downconversion emission of Er3+ ions. When incorporated into a polymer waveguide amplifier, these NPs enable a maximum measured relative gain of 11.62 dB at 1535 nm in a 0.8 cm-long device under dual-wavelength (808 and 976 nm) pumping, which is 3.18 dB higher than the highest relative gain obtained under 976 nm single-wavelength pumping. This approach provides a route to enhanced C-band amplification and offers a strategy for designing compact, multi-wavelength-pumped photonic devices.
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BibTeX
@article{li2026gainenhancement,
title = {{Gain-Enhancement Strategy for C-Band Polymer Waveguide Amplifiers via Dual-Wavelength Pumping}},
author = {Changlong Li and Hong Liao and Guanlin Li and Zheng Wang and Kezhi Zheng and Fei Wang and Daming Zhang},
journal = {Polymers},
year = {2026},
month = nov,
doi = {10.3390/polym18212732},
url = {https://www.mdpi.com/2073-4360/18/21/2732},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Gain-Enhancement Strategy for C-Band Polymer Waveguide Amplifiers via Dual-Wavelength Pumping
AU - Changlong Li
AU - Hong Liao
AU - Guanlin Li
AU - Zheng Wang
AU - Kezhi Zheng
AU - Fei Wang
AU - Daming Zhang
PY - 2026
DA - 2026/11/03
JO - Polymers
DO - 10.3390/polym18212732
UR - https://www.mdpi.com/2073-4360/18/21/2732
AB - Optical waveguide amplifiers are vital for on-chip loss compensation in photonic integrated circuits (PICs). Although C-band waveguide amplifiers have been widely studied, achieving high gain remains a considerable challenge. In this work, we present a gain-enhancement strategy based on core-shell nanoparticles (NPs) co-doped with multiple rare-earth ions (NaYbF4:Er3+, Ce3+@NaYF4:Yb3+, Nd3+). Efficient energy transfer from Nd3+ to Yb3+ ions significantly boosts the downconversion emission of Er3+ ions. When incorporated into a polymer waveguide amplifier, these NPs enable a maximum measured relative gain of 11.62 dB at 1535 nm in a 0.8 cm-long device under dual-wavelength (808 and 976 nm) pumping, which is 3.18 dB higher than the highest relative gain obtained under 976 nm single-wavelength pumping. This approach provides a route to enhanced C-band amplification and offers a strategy for designing compact, multi-wavelength-pumped photonic devices.
SN - 2073-4360
ER -