Samanta G K, Ebrahim-Zadeh M
ICFO-Institut de Cicncies Fotoniques, Mediterranean Technology, Park, Barcelona, Spain.
Opt Lett. 2008 Jun 1;33(11):1228-30. doi: 10.1364/ol.33.001228.
We report a new source of cw, single-frequency radiation in the blue, offering extended tunability and practical powers in a compact, all-solid-state design. The device is based on a green-pumped, cw, singly resonant optical parametric oscillator using MgO-doped stoichiometric lithium tantalate (MgO:sPPLT) as the nonlinear material. By internal second-harmonic generation of the resonant near-infrared signal radiation in a 5 mm BiB(3)O(6) crystal, we generate nearly 450 mW of cw, single-frequency blue power over a tunable range of 425-489 nm with a linewidth of 8.5 MHz and a Gaussian spatial beam profile. The demonstrated wavelength coverage can be further extended by using alternative gratings for the MgO:sPPLT crystal.
我们报道了一种新型的连续波单频蓝光辐射源，它采用紧凑的全固态设计，具有扩展的可调谐性和实用功率。该装置基于一个绿色泵浦的连续波单共振光学参量振荡器，使用掺氧化镁的化学计量比钽酸锂（MgO:sPPLT）作为非线性材料。通过在一块5毫米的BiB(3)O(6)晶体中对共振近红外信号辐射进行内部二次谐波产生，我们在425 - 489纳米的可调谐范围内产生了近450毫瓦的连续波单频蓝光功率，线宽为8.5兆赫兹，具有高斯空间光束分布。通过为MgO:sPPLT晶体使用替代光栅，所展示的波长覆盖范围可以进一步扩展。
