Open AccessPhotonic microwave oscillator based on monolithic DFB lasers with frequency‐shifted feedback
Author(s) -
Wang L.,
Romanelli M.,
Van Dijk F.,
Vallet M.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.0155
Subject(s) - phase noise , laser , photonics , optoelectronics , microwave , materials science , local oscillator , offset (computer science) , semiconductor laser theory , distributed feedback laser , frequency offset , optics , photonic integrated circuit , wavelength , semiconductor , physics , electrical engineering , computer science , engineering , channel (broadcasting) , quantum mechanics , orthogonal frequency division multiplexing , programming language
A photonic oscillator, locked to a master RF synthesiser, was built by using a monolithic dual‐wavelength DFB semiconductor laser submitted to a frequency‐shifted optical feedback. A [3; 10] GHz tuning range is reported, with a phase noise level lower than −70 dBrad 2 /Hz at a 10 Hz offset from the carrier.