钛宝石激光器的室温连续波运转

Room-temperature continuous-wave operation of a Ti:Al2O3 laser.

作者信息

Sanchez A, Fahey R E, Strauss A J, Aggarwal R L

机构信息

Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173-0073, USA.

出版信息

Opt Lett. 1986 Jun 1;11(6):363-4. doi: 10.1364/ol.11.000363.

DOI:10.1364/ol.11.000363

PMID:19730632

Abstract

Room-temperature cw operation of a Ti:Al(2)O(3) laser has been demonstrated for the first reported time. Laser emission at 770 nm was excited with an all-line Ar-ion laser pump. The maximum output power was 1.6 W. Values of (64 +/- 10)% for the internal quantum efficiency and (2.4 +/- 0.5)% for the round-trip cavity loss are obtained from the thresholds and slope efficiencies measured with 0.7 and 4.9% output couplers. The cavity-loss value places an upper bound of 0.007 cm(-1) on the absorption coefficient of the laser rod for the pi polarization (E ||ĉ) || at 770 nm, compared with 0.73 cm(-1) measured at 490 nm, the peak of the Ti(3+) pump band.

摘要

首次报道实现了钛宝石（Ti:Al₂O₃）激光器的室温连续波运转。用全谱氩离子激光泵浦激发770纳米处的激光发射。最大输出功率为1.6瓦。通过使用0.7%和4.9%输出耦合器测量的阈值和斜率效率，得出内部量子效率为(64±10)%，往返腔损耗为(2.4±0.5)%。与在Ti³⁺泵浦带峰值490纳米处测得的0.73厘米⁻¹相比，该腔损耗值给出了770纳米处激光棒对于π偏振（E ||ĉ）||的吸收系数上限为0.007厘米⁻¹。