Tunable single- and dual-wavelength SHG from diode-pumped PPKTP waveguides

Ksenia A. Fedorova*, Christine D. Wong, Christopher M. Kaleva, Ilia O. Bakshaev, Daniil A. Livshits, Edik U. Rafailov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A compact, all-room-temperature, widely tunable, continuous wave laser source in the green spectral region (502.1–544.2 nm) with a maximum output power of 14.7 mW is demonstrated. This was made possible by utilizing second-harmonic generation (SHG) in a periodically poled potassium titanyl phosphate (PPKTP) crystal waveguide pumped by a quantum-well external-cavity fiber-coupled diode laser and exploiting the multimode-matching approach in nonlinear crystal waveguides. The dual-wavelength SHG in the wavelength region between 505.4 and 537.7 nm (with a wavelength difference ranging from 1.8 to 32.3 nm) and sum-frequency generation in a PPKTP waveguide is also demonstrated.
Original languageEnglish
Pages (from-to)5098-5101
Number of pages4
JournalOptics Letters
Issue number21
Publication statusPublished - 1 Nov 2016

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