Fourth harmonic generation based on miniaturized tunable bow-tie resonators. (June 2019)

• Record Type: Journal Article
• Authors: Chen, Guozhu; Zou, Hongxin; He, Xiaokang; Shen, Yong; Liu, Qu
• Is Part Of: Optics & laser technology. Volume 114(2019)
• Page Start: 44
• Page End: 48
• Publication Date: 2019-06
• Subjects: Fourth harmonic generation -- Deep-ultraviolet -- Miniaturized tunable bow-tie resonator; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2019.01.002
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: Design of a compact and miniaturized bow-tie optical resonator. Performance of an integrated FHG system from infrared to ultraviolet. Employ of two plane-concave mirrors with R = 30 mm in bow-tie cavity. Potential application in compact commercial optical system. This system is working well and suitable for the low power continuous-wave laser. Abstract: A compact continuous-wave deep-ultraviolet laser system is developed with fourth harmonic generation technique. Two miniaturized bow-tie resonators with dimensions of 95 mm × 66 mm × 53 mm are applied to realize the frequency conversion from infrared to deep-ultraviolet. Based on a 1.17 W 1014.8 nm continuous-wave fundamental laser, a 480 mW 507.4 nm laser is generated. And then a 25 mW 253.7 nm deep-ultraviolet laser is generated with 420 mW input pump power. The experimental data are in agreement with simulation results. As a result, this system is working well and suitable for the low power continuous-wave laser.