A parity-time-symmetric optoelectronic oscillator with polarization multiplexed channels

ÖZGÜN E., Uyar F., KARTALOĞLU T., ÖZBAY E., Ozdur I.

JOURNAL OF OPTICS, cilt.24, sa.5, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 5
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1088/2040-8986/ac5ecf
  • Dergi Adı: JOURNAL OF OPTICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: optoelectronic oscillators, polarization multiplexing, parity-time symmetry, microwave optics, NON-HERMITIAN HAMILTONIANS, PSEUDO-HERMITICITY, PT-SYMMETRY, LASER
  • Hacettepe Üniversitesi Adresli: Evet

Özet

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.