Abstract

We report on a detailed analysis of the effect of CW injection in an actively mode-locked laser at 780 nm, on the noise performances of the laser. The optical properties of the emitted pulse train, and the phase and amplitude noise of the RF pulse train generated after photodetection have been characterized with respect to the laser pumping rate, and to the injected power. We show that when injected, the laser exhibits a dramatic improvement of both RF phase noise and power spectrum, but at the expense of a degraded optical relative intensity noise.

Ultralow-jitter and -amplitude-noise semiconductor-based actively mode-locked laser

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Noise reduction by harmonic injection locking of passively mode-locked erbium-doped fiber lasers

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Passively mode-locked III-V/silicon laser with continuous-wave optical injection

Yuanbing Cheng, Xianshu Luo, Junfeng Song, Tsung-Yang Liow, Guo-Qiang Lo, Yulian Cao, Xiaonan Hu, Xiaohui Li, Peng Huei Lim, and Qi Jie Wang
Opt. Express 23(5) 6392-6399 (2015)

RF injection locked 18 GHz regeneratively mode-locked semiconductor laser

Abdullah Oran, Sarper Ozharar, Gokhan Can, Ibrahim Olcer, and Ibrahim Ozdur
Opt. Express 26(1) 376-381 (2018)

Timing jitter reduction of passively mode-locked semiconductor lasers by self- and external-injection: Numerical description and experiments

Lukas Drzewietzki, Stefan Breuer, and Wolfgang Elsäßer
Opt. Express 21(13) 16142-16161 (2013)