Generation of microwave radiation by nonlinear interaction of a high-power, high-repetition rate, 1064-nm laser in KTP crystals

Abstract

We report measurements of microwave (RF) generation in the centimeter band accomplished by irradiating a nonlinear KTiOPO${}_4$ (KTP) crystal with a home-made, infrared laser at $1064$nm as a result of optical rectification (OR). The laser delivers pulse trains of duration up to $1\mu$s. Each train consists of several high-intensity pulses at an adjustable repetition rate of approximately $4.6$GHz. The duration of the generated RF pulses is determined by that of the pulse trains. We have investigated both microwave- and second harmonic (SHG) generation as a function of the laser intensity and of the orientation of the laser polarization with respect to the crystallographic axes of KTP.

5 pages, 5 figures, to appear in Optics Letters, vol. 38 (2013)

References in corpus (1)

• Ultra-Low Noise Microwave Extraction from Fiber-Based Optical Frequency Comb

Cited by in corpus (3)

• Second order nonlinearity induced multipartite entanglement in a hybrid magnon cavity QED system
• A contactless microwave-based diagnostic tool for high repetition rate laser systems
• Microwave emission by nonlinear crystals irradiated with a high-intensity, mode-locked laser