A single-frequency single-resonator laser on erbium-doped lithium niobate on insulator

Abstract

Erbium-doped lithium niobate on insulator (Er:LNOI) is a promising platform for photonic integrated circuits as it adds gain to the LNOI system and enables on-chip lasers and amplifiers. A challenge for Er:LNOI laser is to increase its output power while maintaining single-frequency and single (-transverse)-mode operation. In this work, we demonstrate that single-frequency and single-mode operation can be achieved even in a single multi-mode Er:LNOI microring by introducing mode-dependent loss and gain competition. In a single microring with a free spectral range of 192 GHz, we have achieved single-mode lasing with an output power of 2.1 microwatt, a side-mode suppression of 35.5 dB, and a linewidth of 1.27 MHz.

References in corpus (11)

• Integrated photonics on thin-film lithium niobate
• Monolithic Ultrahigh-Q Lithium Niobate Microring Resonator
• High-performance Coherent Optical Modulators based on Thin-film Lithium Niobate Platform
• On-chip Erbium-doped lithium niobate microcavity laser
• An on-chip tunable micro-disk laser fabricated on Er3+ doped lithium niobate on insulator (LNOI)
• On-chip erbium-doped lithium niobate microring lasers
• An electro-optically tunable microring laser monolithically integrated on lithium niobate on insulator
• Integrated LNOI single-mode lasers by Vernier effect
• On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator
• Single-frequency integrated laser on erbium-doped lithium niobate on insulator
• Integrated spiral waveguide amplifiers on erbium-doped thin-film lithium niobate

Cited by in corpus (5)

• Integrated Pockels Laser
• On-chip single-mode thin film lithium niobate laser based on Sagnac loop reflectors
• Electrically driven compact hybrid lithium niobate microring laser
• Self-Amplification-Assisted Highly Efficient Integrated Laser
• Nanocavity-mediated Purcell enhancement of Er in TiO${}_2$ thin films grown via atomic layer deposition