Publication: Observation of phase noise reduction in photonically synthesized sub-THz signals using a passively mode-locked laser diode and highly selective optical filtering
Loading...
Identifiers
Publication date
2012-01-05
Defense date
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Impact
Export
Abstract
A Continuous Wave (CW) sub-THz photonic synthesis setup based on a single Passively Mode-Locked Laser Diode (PMLLD) acting as a monolithic Optical Frequency Comb Generator (OFCG) and highly selective optical filtering has been implemented to evaluate the phase noise performance of the generated sub-THz signals. The analysis of the synthesized sub-THz signals up to 120 GHz gives as a result an effective reduction of the electrical linewidth when compared to direct harmonic generation that begins at 50 GHz and becomes greater as the frequency increases. The phase noise reduction offered by the setup, along with its integration potential, cost and bandwidth, make it a promising candidate to the development of an integrated and high performance low phase noise local oscillator in the sub-THz range.
Description
Keywords
Mode-locked lasers, Harmonic generation and mixing, Microwaves, Semiconductor laser
Bibliographic citation
Optics Express, (2012), 20(2), 1253-1260.