Open AccessExperimental demonstration of 1.3 μm VCSEL‐based optoelectronic oscillator at 12 GHz using optical injection‐locking technique
Author(s) -
Coronel Juan,
Varón Margarita,
Rissons Angélique,
Kasmi Chaouki
Publication year - 2021
Publication title -
iet optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 42
eISSN - 1751-8776
pISSN - 1751-8768
DOI - 10.1049/ote2.12030
Subject(s) - vertical cavity surface emitting laser , phase noise , materials science , injection locking , optoelectronics , dbc , laser , allan variance , offset (computer science) , amplitude modulation , voltage controlled oscillator , optics , bandwidth (computing) , frequency modulation , physics , telecommunications , voltage , computer science , statistics , mathematics , standard deviation , quantum mechanics , programming language
Abstract The experimental validation is presented of an optical injection‐locked (OIL) vertical‐cavity surface‐emitting laser (VCSEL)‐based optoelectronic oscillator (VBO) to overcome the direct‐modulation bandwidth limitations of packaged VCSELs. A 1.3 μm VCSEL under OIL is directly modulated at 12 GHz. The carrier phase noise value is −97.7 dBc/Hz at 10 kHz offset. A time domain characterisation of the oscillator based on Allan variance is proposed. The performed measurements showed that the OIL technique allows an increase in the optoelectronic oscillator (OEO) carrier frequency in comparison with free‐running VBOs while maintaining high spectral purity. The results for a 12 GHz delay‐line OEO with amplitude modulation are also compared with the proposed approach.