A parity-time-symmetric optoelectronic oscillator with polarization multiplexed channels. (1st May 2022)

• Record Type: Journal Article
• Authors: Özgün, Ege; Uyar, Faruk; Kartaloglu, Tolga; Ozbay, Ekmel; Ozdur, Ibrahim
• Is Part Of: Journal of optics. Volume 24:Number 5(2022)
• Publication Date: 2022-05-01
• Subjects: optoelectronic oscillators -- polarization multiplexing -- parity-time symmetry -- microwave optics; Optics -- Periodicals; 535.05
• DOI: 10.1088/2040-8986/ac5ecf
• Languages: English
• ISSNs: 2040-8978

Abstract

Abstract: In this manuscript, we experimentally demonstrate a parity-time-symmetric optoelectronic oscillator (OEO) with polarization multiplexed channels. We obtained a microwave single-mode oscillation at 9.5 GHz with phase noise values of −116.2 and −122.3 dBc Hz −1 at 10 kHz offset frequencies, and side mode suppression values below −68 and −75 dBc Hz −1, by utilizing a 1 km long and 5 km long single mode fiber delay lines, respectively. Our experimental results suggest that parity-time-symmetric OEOs with polarization multiplexed channels are simple and cost-efficient alternatives to their more complex counterparts.