All-Fibre Ytterbium-Doped Photonic Crystal Fibre Laser with High Efficiency

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2008,（3）
• 页码范围: 960-962
• 页数: 3页
• 语种: 英文

摘要

A double-cladding ytterbium-doped photonic crystal fibre(PCF)with a 350-μm2 effective area is fabricated.The measurement results show that the PCF has high absorption peak at 915nm.Its fluorescence lifetime is 840μs.Laser experiments with all-fibre configurations are carried out with this fibre.A continuous-wave output power of 3.96 W is achieved with a 5.2 W launched pump power.The central wavelength of the output spectrum is 1080.22nm.The results show that the PCF laser has a high slope efficiency of 79.6% and light conversion efficiency of 76.2%.