All-optical frequency-by-three division with a diode-laser-pumped cw OPO using PPLN

Dong-Hoon Lee; M. E. Klein; Jan-Peter Meyn; P. Grosz; Stefan Marzenell; Richard E. Wallenstein; Klaus-Jochen Boller

doi:10.1117/12.379926

23 March 2000 All-optical frequency-by-three division with a diode-laser-pumped cw OPO using PPLN

Dong-Hoon Lee, M. E. Klein, Jan-Peter Meyn, P. Grosz, Stefan Marzenell, Richard E. Wallenstein, Klaus-Jochen Boller

Proceedings Volume 3928, Nonlinear Materials, Devices, and Applications; (2000) https://doi.org/10.1117/12.379926
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

Abstract

We report on the first realization of an all-optical frequency-by-three divider. The frequency to be divided is generated by a single-frequency diode master-oscillator power-amplifier (MOPA) system emitting at a wavelength of 812 nm. By-three-division is achieved with a continuous-wave (CW) optical parametric oscillator (OPO) based on a periodically pulsed LiNbO₃ crystal, which carries tow sections with different poling periods. The first section provides quasi-phase matching (QPM) for parametric oscillation at 1218 nm and 2436 nm such that the idler frequency is approximately one-third of the pump frequency. The other section provides QPM for second harmonic generation (SHG) of the idler frequency which gives an additional field at a wavelength of 1218 nm. By fine tuning the OPO output wavelengths, the frequency difference between the signal and the idler-SHG is brought close to zero. This results in a mutual injection-locking of the idler and signal waves, giving phase-coherent oscillator of both waves with the pump at a frequency ratio of exactly 1 to 2 to 3. The measured locking-range of 0.5 to 1 MHz shows good agreement with the theoretical value of 0.8 MHz obtained form numerically solving the coupled wave equations for the OPO with resonator internal idler-SHG.

Citation Download Citation

Dong-Hoon Lee, M. E. Klein, Jan-Peter Meyn, P. Grosz, Stefan Marzenell, Richard E. Wallenstein, and Klaus-Jochen Boller "All-optical frequency-by-three division with a diode-laser-pumped cw OPO using PPLN", Proc. SPIE 3928, Nonlinear Materials, Devices, and Applications, (23 March 2000); https://doi.org/10.1117/12.379926

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