Long-Term Absolute Frequency Stabilization of a Hybrid-Integrated InP-Si<sub>3</sub>N<sub>4</sub> Diode Laser
Long-Term Absolute Frequency Stabilization of a Hybrid-Integrated InP-Si<sub>3</sub>N<sub>4</sub> Diode Laser
Hybrid integrated diode lasers based on combining semiconductor optical amplifiers with low-loss Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> -based feedback circuits enable great laser performance for advanced photonic circuits. In particular, using high-Q Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> ring resonators for frequency-selective feedback provides wide …