Up to 30 mW of broadly tunable CW green-to-orange light, based on sum-frequency mixing of Cr4+:forsterite and Nd:YVO4 lasers
✍ Scribed by Jesper L. Mortensen; Alan McWilliam; Christopher G. Leburn; Peter Tidemand-Lichtenberg; Morten Thorhauge; Jirí Janousek; Christian T.A. Brown; Alexander A. Lagatsky; Preben Buchhave; Wilson Sibbett
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 128 KB
- Volume
- 260
- Category
- Article
- ISSN
- 0030-4018
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✦ Synopsis
Efficient generation of continuous-wave (CW) tunable light in the yellow region is reported. The method is based on sum-frequency mixing of a tunable Cr 4+ :forsterite laser with a Nd:YVO 4 laser. A periodically poled lithium niobate crystal was placed intra-cavity in a Nd:YVO 4 laser, and the Cr 4+ :forsterite laser was single-passed through the non-linear media. With this setup, it was possible to generate up to 3 mW of yellow light smoothly tunable from 573 to 587 nm. This is the highest output demonstrated to date for a tunable diode pumped solid-state CW laser in this wavelength region. The ways to improve the efficiency further are discussed.