Scientific Results

An intracavity frequency doubled H2 Raman laser scheme for generating narrow-linewidth yellow radiation

Year: 2012

Authors: Green J.T., Fallani L.

Autors Affiliation: Laboratorio Europeo di Spettroscopie Nonlineari (LENS), Dipartimento di Fisica ed Astronomia, Universitá di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy

Abstract: We propose a cavity-based combined Raman and second harmonic generation scheme for generating hundreds of milliwatts of continuous-wave yellow radiation with a frequency linewidth suitable for spectroscopic applications. We suggest using H2 gas as the Raman medium in an external Raman ring resonator with an intracavity frequency doubling crystal. Using gas rather than a crystal allows for single-mode, narrow-linewidth operation suitable for many spectroscopic applications. In a specific numerical example, we predict the generation of more than 200 mW of narrow-linewidth 583 nm light from an input of 1 W of 785 nm light, which could be obtained from a low cost tapered amplifier diode system. Finally, we suggest methods for improving the laser performance.

Journal/Review: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B: OPTICAL PHYSICS

Volume: 29 (5)      Pages from: 1065  to: 1070

KeyWords: Nonlinear optics, Continuous waves; Frequency-linewidth; Intra cavity frequency doubling; Intracavities; Laser performance; Low costs; Numerical example; Raman lasers; Ring resonator; Single mode; Spectroscopic application; Tapered amplifier, Linewidth
DOI: 10.1364/JOSAB.29.001065

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