Compact metrological frequency comb stabilized with optical injection locking assisted by long-term optoelectronic correction
- Resource Type
- Authors
- Vincent Roncin; Frederic Du-Burck; Amine Chaouche Ramdane; Pierre Gruning
- Source
- 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
- Subject
- Distributed feedback laser
Materials science
Laser diode
business.industry
02 engineering and technology
Injection seeder
Optical modulation amplitude
law.invention
Laser linewidth
020210 optoelectronics & photonics
Optics
Mode-locking
law
Laser diode rate equations
Optical cavity
0202 electrical engineering, electronic engineering, information engineering
Optoelectronics
business
- Language
In this paper, we present new and encouraging results in the road towards democratisation of optical frequency combs for metrology applications out of the laboratories. We study a compact InGaAs based Quantum-Dash Mode Locked Laser Diode (QD-MLLD) at 1.55μm generating high stable and low noise optical pulses with a repetition rate higher than 10 GHz [1]. The source is a 10.1 GHz mode spacing Fabry-Perot laser with extremely high internal correlation between modes. The spectral purity of the beat-note resulting in the beating of all the modes is lower than 50 kHz while the typical linewidth of optical modes is about 50 MHz. Thanks to injection locking with an External Cavity Laser Diode (ECLD) in one of the 125 modes, we succeed in a linewidth reduction by 500 of the MLLD optical modes, corresponding to the linewidth of the master laser.