Abstract

We report the continuous wave (CW) second harmonic generation (SHG) with a periodically poled KTiOPO4 (PPKTP) pumped by a diode laser at 852.356 nm, which is exactly resonant on the cesium D2 transition. An output power of 54.4 mW of blue light at 426 nm was obtained at the pump power of 136.4 mW. The conversion efficiency is about 40%. The best matching temperature is 318.3 K. This CW blue light can be used for atomic physics, especially for the generation of nonclassical light at the transition of cesium atom through optical parametric oscillator (OPO).

© 2007 Chinese Optics Letters

Generation of blue light at 426 nm by frequency doubling with a monolithic periodically poled KTiOPO₄

Xue Deng, Jing Zhang, Yuchi Zhang, Gang Li, and Tiancai Zhang
Opt. Express 21(22) 25907-25911 (2013)

High efficient generation of over 1  Watt 509  nm laser beam by a ring cavity frequency doubler with periodically poled KTiOPO₄

Gang Li, Shaokang Li, Xingchang Wang, Pengfei Zhang, and Tiancai Zhang
Appl. Opt. 56(1) 55-60 (2017)

Ultraviolet generation by first-order frequency doubling in periodically poled KTiOPO₄

S. Wang, V. Pasiskevicius, F. Laurell, and H. Karlsson
Opt. Lett. 23(24) 1883-1885 (1998)

Watt-level single-frequency tunable Nd:YLF/periodically poled KTiOPO₄ red laser

Rodolphe Sarrouf, Virginie Sousa, Thomas Badr, Guibao Xu, and Jean-Jacques Zondy
Opt. Lett. 32(18) 2732-2734 (2007)

Squeezing at 946nm with periodically poled KTiOPO₄

Takao Aoki, Go Takahashi, and Akira Furusawa
Opt. Express 14(15) 6930-6935 (2006)