理论分析了光纤放大器的增益与掺杂光纤发射截面和吸收截面的关系,真空环境下的光纤放大器的散热性能。实验表明,真空环境下,输入光信号为1550 nm的情况下,增益以0.0076 d B/℃变化,真空55℃工作5 min,散热措施能使镱铒共掺光纤温度从10...理论分析了光纤放大器的增益与掺杂光纤发射截面和吸收截面的关系,真空环境下的光纤放大器的散热性能。实验表明,真空环境下,输入光信号为1550 nm的情况下,增益以0.0076 d B/℃变化,真空55℃工作5 min,散热措施能使镱铒共掺光纤温度从106℃下降至76℃,输出功率在波动小于10 m W。展开更多
Stimulated Raman scattering in a double cladding optical fiber is studied with a continuous wave laser used as a pump source. Under various launch conditions, pump modes are differently excited. Considering the mode c...Stimulated Raman scattering in a double cladding optical fiber is studied with a continuous wave laser used as a pump source. Under various launch conditions, pump modes are differently excited. Considering the mode coupling effect among the pump modes, the evolution of the power in the Stokes modes is studied. The results show that the scattered waves （the Stokes waves） in the fiber core with 9%tm diameter and 0.14 NA could propagate predominantly in the fundamental mode of the fiber by carefully adjusting the pump light launching conditions.展开更多
文摘理论分析了光纤放大器的增益与掺杂光纤发射截面和吸收截面的关系,真空环境下的光纤放大器的散热性能。实验表明,真空环境下,输入光信号为1550 nm的情况下,增益以0.0076 d B/℃变化,真空55℃工作5 min,散热措施能使镱铒共掺光纤温度从106℃下降至76℃,输出功率在波动小于10 m W。
文摘Stimulated Raman scattering in a double cladding optical fiber is studied with a continuous wave laser used as a pump source. Under various launch conditions, pump modes are differently excited. Considering the mode coupling effect among the pump modes, the evolution of the power in the Stokes modes is studied. The results show that the scattered waves （the Stokes waves） in the fiber core with 9%tm diameter and 0.14 NA could propagate predominantly in the fundamental mode of the fiber by carefully adjusting the pump light launching conditions.
