Journal
OPTICS LETTERS
Volume 47, Issue 1, Pages 154-157Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.441662
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Funding
- National Natural Science Foundation of China [61875071, 11774132, 62090062, 12174150]
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This study introduces an S-band waveguide amplifier using a nanocomposite of nanoparticles and polymer as the gain medium. By optimizing the doping concentration, the strongest emission luminescence at 1480 nm is achieved, and a relative gain of 5.6 dB/cm is observed. This is the first time that S-band amplification has been achieved in a polymer-based waveguide amplifier.
Optical waveguide amplifiers are essential to improve the performance of integrated communication systems. Previous research has mainly focused on C- and L-bands amplification, but there are few reports on S-band waveguide amplifiers. Here, we introduce a polymer-based waveguide amplifier that uses a NaYF4:Yb3+,Tm3+ nanoparticles-PMMA nanocomposite as gain medium, which can provide loss compensation in the S-band. To obtain the strongest emission luminescence at 1480 nm, we optimized the doping concentration of Yb3+ and Tm3+ to 20% and 1%, respectively. By copolymerizing the nanoparticles and methyl methacrylate monomers, the nanocomposite was synthesized and used as the gain medium to fabricate S-band waveguide amplifiers. A relative gain of 5.6 dB/cm was observed at 1480nm under the excitation of a 980-nm pump laser. To the best of our knowledge, this is the first time that S-band amplification has been observed in a polymer-based waveguide amplifier. This result is expected to extend the waveband of polymer-based waveguide amplifiers to the S-band. (C) 2021 Optical Society of America
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