A Measurement of Modal Gain Profile and Its Effect on the Lasing Performance in Vertical-External-Cavity Surface-Emitting Lasers
A Measurement of Modal Gain Profile and Its Effect on the Lasing Performance in Vertical-External-Cavity Surface-Emitting Lasers
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垂直外腔面发射激光器模态增益分布的测量及其对激光性能的影响
DOI：
10.1109/lpt.2006.887217
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发表时间：
2006
影响因子：
2.6
通讯作者：
Yongjo Park
中科院分区：
文献类型：
--
作者：
Junyoun Kim;Soohaeng Cho;Junho Lee;G. Kim;Seong;Jaeryung Yoo;Kisung Kim;Sang;J. Shim;Taek Kim;Yongjo Park
研究了垂直外腔面发射激光器（VECSELs）中材料增益和谐振峰之间的相对波长差对激光输出性能的影响。我们提出了一种测量波长相关的模式增益分布的方法，通过在腔内插入双折射滤波器，以便根据波长调制光损耗。在详细的增益分布的知识，我们实现了一个稳定的绿色输出功率为3.3 W和功率转换效率（=绿色输出功率/泵浦输入功率）为17%的VECSEL与LiB 3 O 5晶体作为腔内倍频
We investigate the effect of relative wavelength difference between material gain and resonance peaks on lasing performance in vertical-external-cavity surface-emitting lasers (VECSELs). We propose a measurement method of the wavelength-dependent modal gain profiles by inserting a birefringent filter inside a cavity in order to modulate the optical loss according to the wavelength. With knowledge of the detailed gain profiles, we achieve a stable green output power of 3.3 W and a power conversion efficiency (= green output power/pump input power) of 17% in VECSEL with a LiB3O5 crystal as an intracavity frequency doubler