Single-frequency blue light generation by single-pass sum-frequency generation in a coupled ring cavity tapered laser

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Abstract

A generic approach for generation of tunable single frequency light is presented. 340 mW of near diffraction limited, single-frequency, and tunable blue light around 459 nm is generated by sum-frequency generation (SFG) between two tunable tapered diode lasers. One diode laser is operated in a ring cavity and another tapered diode laser is single-passed through a nonlinear crystal which is contained in the coupled ring cavity. Using this method, the single-pass conversion efficiency is more than 25%. In contrast to SFG in an external cavity, the system is entirely self-stabilized with no electronic locking.
Original languageEnglish
Article number141107
JournalApplied Physics Letters
Volume103
Issue number14
Number of pages3
ISSN0003-6951
DOIs
Publication statusPublished - 2013

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