Ultra-narrow-linewidth, single-frequency distributed feedback waveguide laser in Al2O3:Er3+ on silicon

作者：Bernhardi E H^*; van Wolferen H A G M; Agazzi L; Khan M R H; Roeloffzen C G H; Worhoff K; Pollnau M; de Ridder R M

来源：Optics Letters, 2010, 35(14): 2394-2396.

DOI：10.1364/OL.35.002394

We report the realization and performance of a distributed feedback channel waveguide laser in erbium-doped aluminum oxide on a standard thermally oxidized silicon substrate. The diode-pumped continuous-wave laser demonstrated a threshold of 2.2 mW absorbed pump power and a maximum output power of more than 3 mW with a slope efficiency of 41.3% versus absorbed pump power. Single-longitudinal-mode and single-polarization operation was achieved with an emission linewidth of 1.70 +/- 0.58 kHz (corresponding to a Q factor of 1.14 x 10(11)), which was centered at a wavelength of 1545.2 nm.

• 出版日期2010-7-15