We present a novel photonic integrated circuit (PIC) that monolithically integrates a racetrack colliding-pulse mode-locked laser with a pulse-picking electro-absorption modulator and a semiconductor optical amplifier on Indium Phosphide. We present detailed characterization of this PIC that includes optical pulse characterization, phase noise and long term stability under passive and hybrid mode-locking conditions. Allan deviation measurements made on the optical pulse train from the PIC show a fractional frequency instability of $8\times 10 ^{-11}$ at 1 second and follow a 1/ $\tau $ trend. We also demonstrate repetition rate reduction from ~10 GHz to ~500 MHz with an extinction ratio of ~14.65 dB using an on-chip pulse-picking electro-absorption modulator.

中文翻译：

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具有脉冲拾取调制器的单片集成跑道碰撞脉冲锁模激光器

我们提出了一种新型光子集成电路 (PIC)，该电路将跑道碰撞脉冲锁模激光器与脉冲拾取电吸收调制器和磷化铟半导体光放大器单片集成。我们展示了该 PIC 的详细特性，包括无源和混合锁模条件下的光脉冲特性、相位噪声和长期稳定性。对来自 PIC 的光脉冲序列进行的艾伦偏差测量显示部分频率不稳定性为 $8\times 10 ^{-11}$ 在 1 秒并遵循 1/ $\tau $ 趋势。我们还展示了使用片上脉冲拾取电吸收调制器将重复率从 ~10 GHz 降低到 ~500 MHz，消光比为 ~14.65 dB。