Neodymium-diffused tunable Y-branch waveguide laser in LiNbO₃ operating at room temperature

Abstract

Rare-earth-doped waveguide optical lasers and amplifiers have received considerable attention in recent years, both in fibre form and as channel waveguides on planar substrates. Channel waveguide geometries lend themselves ideally for applications in active integrated circuits, with the potential for photolithographic definition of complex-cavity devices and monolithically integrated modulators for tuning, line-narrowing, Q-switching and mode-locking