Characterization of Single-Crystal Synthetic Diamond for Multi-Watt Continuous-Wave Raman Lasers
Characterization of Single-Crystal Synthetic Diamond for Multi-Watt Continuous-Wave Raman Lasers
复制标题
DOI：
10.1109/jqe.2011.2179917
复制
发表时间：
2012-03
影响因子：
2.5
通讯作者：
V. Savitski;Ian Friel;J. Hastie;M. Dawson;David Burns;A. Kemp
中科院分区：
文献类型：
--
作者：
V. Savitski;Ian Friel;J. Hastie;M. Dawson;David Burns;A. Kemp
在1217 nm处获得了5.1 W的连续波金刚石拉曼激光输出。这种拉曼激光器是由侧面泵浦的Nd：YLF棒激光器腔内泵浦的：观察到Nd：YLF和金刚石拉曼激光器之间的43倍亮度增强，金刚石拉曼激光器的M2光束传输因子测量为<1.2。虽然在使用KGd（WO 4）2（KGW）作为拉曼激光器材料（6.1 W）的类似配置中展示了更高的输出功率，但是由于KGW拉曼激光器的较差光束质量（M2 <; 6），亮度增强低得多（2.5倍）。还测量了单晶人造金刚石在1064 nm泵浦波长下的拉曼增益系数：返回的最大值为21±2 cm/GW，而KGW在相同波长下的增益系数为5.7±0.5 cm/GW。
A continuous-wave diamond Raman laser is demonstrated with an output power of 5.1 W at 1217 nm. This Raman laser is intracavity pumped by a side-pumped Nd:YLF rod laser: a 43-fold brightness enhancement between the Nd:YLF and diamond Raman lasers is observed, with the M2 beam propagation factor of the diamond Raman laser measured to be <; 1.2. Although higher output powers are demonstrated in a similar configuration using KGd(WO4)2 (KGW) as the Raman laser material (6.1 W), the brightness enhancement is much lower (2.5 fold) due to the poorer beam quality of the KGW Raman laser (M2 <; 6). The Raman gain coefficient of single-crystal synthetic diamond at a pump wavelength of 1064-nm is also measured: a maximum value of 21±2 cm/GW is returned compared to 5.7±0.5 cm/GW for KGW at the same wavelength.