We report on high-performance waveguide lasers based on depressed-cladding waveguides fabricated by a femtosecond laser in Tm:YGG crystals.Pumped with a 1700-nm Raman fiber laser,the performances of Tm:YGG waveguide l...We report on high-performance waveguide lasers based on depressed-cladding waveguides fabricated by a femtosecond laser in Tm:YGG crystals.Pumped with a 1700-nm Raman fiber laser,the performances of Tm:YGG waveguide lasers have been investigated.Benefiting from the high quantum efficiency of an in-band pumping scheme and the high quality of depressed-cladding waveguides,the highest output power of 2.2 W has been achieved at 2μm,with a slope efficiency of 34.9%.This is,to the best of our knowledge,the highest power ever reported from such 2-μm waveguide lasers.Our work is of great significance to fabricate high-performance and high-power waveguide lasers in integrated photonics.展开更多
基金supported by the Natural Science Foundation of Shandong Province(No.ZR2022QA033)the National Natural Science Foundation of China(No.12204274)+1 种基金the Key Research and Development Program of Shandong Province(No.2024ZLGX02-3)the project PID2022141499OB-100,funded by MICIU/AEI/10.13039/501100011033/and by FEDER/UE。
文摘We report on high-performance waveguide lasers based on depressed-cladding waveguides fabricated by a femtosecond laser in Tm:YGG crystals.Pumped with a 1700-nm Raman fiber laser,the performances of Tm:YGG waveguide lasers have been investigated.Benefiting from the high quantum efficiency of an in-band pumping scheme and the high quality of depressed-cladding waveguides,the highest output power of 2.2 W has been achieved at 2μm,with a slope efficiency of 34.9%.This is,to the best of our knowledge,the highest power ever reported from such 2-μm waveguide lasers.Our work is of great significance to fabricate high-performance and high-power waveguide lasers in integrated photonics.
