On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator

Abstract

We report an on-chip single mode microlaser with low-threshold fabricated on Erbium doped lithium niobate on insulator (LNOI). The single mode laser emission at 1550.5 nm wavelength is generated in a coupled photonic molecule, which is facilitated by Vernier effect when pumping the photonic molecule at 970 nm. A threshold pump power as low as 200 uW is demonstrated thanks to the high quality factor above 10^6. Moreover, the linewidth of the microlaser reaches 4 kHz, which is the best result in LNOI microlasers. Such single mode micro-laser lithographically fabricated on chip is highly in demand by photonic community.

References in corpus (9)

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Cited by in corpus (9)

• A single-frequency single-resonator laser on erbium-doped lithium niobate on insulator
• Integrated LNOI single-mode lasers by Vernier effect
• On-chip single-mode thin film lithium niobate laser based on Sagnac loop reflectors
• Single-frequency integrated laser on erbium-doped lithium niobate on insulator
• Electrically driven compact hybrid lithium niobate microring laser
• On-chip multi-color microdisk laser on Yb3+-doped thin-film lithium niobate
• Self-Amplification-Assisted Highly Efficient Integrated Laser
• Exceptional Points and Lasing Thresholds: When Lower-Q Modes Win
• Tunable single-mode laser on thin film lithium niobate