Femtosecond laser-written lithium niobate waveguide laser operating at 1085 nm

Yang Tan; Javier Rodríguez Vázquez de Aldana; Feng Chen

doi:10.1117/1.OE.53.10.107109

23 October 2014 Femtosecond laser-written lithium niobate waveguide laser operating at 1085 nm

Yang Tan; Javier Rodríguez Vázquez de Aldana; Feng Chen

Author Affiliations +

Optical Engineering, 53(10), 107109 (2014). doi:10.1117/1.OE.53.10.107109

Abstract

We report on the channel waveguide lasers at 1085 nm in femtosecond laser written Type II waveguides in an Nd:MgO:LiNbO₃ crystal. The waveguide was constructed in a typical dual-line approach. In the geometry, we found that four vicinal regions of the track pair could guide light propagation. In addition, these guiding cores support polarization-dependent-guided modes. The propagation losses of the waveguides were measured to be as low as 1 dB/cm. Under an optical pump at 808 nm, the continuous-wave waveguide lasing at 1085 nm was generated, reaching a slope efficiency of 27% and maximum output power of 8 mW. The lasing threshold was 71 mW. Our results show that with the femtosecond laser written Nd:MgO:LiNbO₃ waveguide as the miniature light source, it was possible to construct all-LiNbO₃-based integrated devices for diverse photonic applications.

Citation Download Citation

Yang Tan, Javier Rodríguez Vázquez de Aldana, Feng Chen, "Femtosecond laser-written lithium niobate waveguide laser operating at 1085 nm," Optical Engineering 53(10), 107109 (23 October 2014). https://doi.org/10.1117/1.OE.53.10.107109

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