Summary form only given. The coherent operation of a high-power-gain guided laser diode array in a compact external cavity is discussed. The cavity consists of a quarter-pitch graded index lens (GRIN), directly followed by a stripe mirror. A theoretical analysis was performed which predicts the mode discrimination at threshold as well as the corresponding far and near fields for different cavity configurations (laser, anti-reflection coating, lens and mirror design). Several cavity configurations were assembled and their performances were measured. Measurement with the laser diodes operated in continuous-wave mode show single-lobe diffraction-limited output power levels of over 150 mW. Pulsed measurements yield higher power levels of over 300 mW.
|Number of pages||1|
|Journal||Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS|
|State||Published - 1989|
|Event||Second Annual Meeting of the IEEE Lasers and Electro-Optics Society - LEOS '89 - Orlando, FL, USA|
Duration: 17 Oct 1989 → 20 Oct 1989