Optoelectronics Letters, Volume. 20, Issue 3, 152(2024)

A nano-plasmonic HMIM waveguide based concurrent dual-band BPF using circular ring resonator

Sridhar Miriyala1,*... Bitra Surendra Kumar2, N Murthy T S3 and Padmaraju Koppireddi4 |Show fewer author(s)
Author Affiliations
  • 1Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Guntur, India
  • 2Astra Microwave Products Ltd., Hyderabad, India
  • 3Department of Electronics and Communication Engineering, JNTU-GV College of Engineering, Vizianagaram, India
  • 4Department of Electronics and Communication Engineering, Jawaharlal Nehru Technological University Kakinada,Kakinada, India
  • show less

    This article analyzes the transmission line characteristics of plasmonic hybrid metal insulator metal (HMIM) waveguide,circular ring resonator (CRR) based dual-band band-pass filters with two transmission poles in both pass-bands in the optical regime using coupled line feed. The transmission line characteristics of an HMIM waveguide, such as characteristic impedance (ZPV), effective refractive index (neff) and propagation length (Lspp), have been obtained by using full wave simulation. Using basic HMIM slot waveguide, a CRR with periodic loading of double- and triple-ring CRR is numerically analyzed. Two input ports have been used for excitation, which are located at the separation of 180° positions along the CRR, and are coupled with the ring by parallel coupled lines, producing the dual pass-bands with the synchronous excitation of two transmission poles. The proposed double-ring dual-band band-pass filter(DR-DB-BPF) offers 35 dB extinction ratio (ER), 299.69 nm free spectral range (FSR) and narrow band full width half maximum (FWHM) of 78.057—112.43 nm. The triple-ring DB-BPF (TR-DB-BPF) has 22.5 dB ER, FSR of 292.18 nm and FWHM of 42.751—59.58 nm. The proposed filters are very useful in the development of dual-band filters for electronic photonic integrated circuits (EPICs), as the optical signals are filtered at two wavelengths simultaneously.

    Tools

    Get Citation

    Copy Citation Text

    Miriyala Sridhar, Surendra Kumar Bitra, T S N Murthy, Koppireddi Padmaraju. A nano-plasmonic HMIM waveguide based concurrent dual-band BPF using circular ring resonator[J]. Optoelectronics Letters, 2024, 20(3): 152

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Received: Jul. 13, 2023

    Accepted: Sep. 21, 2023

    Published Online: Aug. 9, 2024

    The Author Email: Sridhar Miriyala (sridhar.m@kluniversity.in)

    DOI:10.1007/s11801-024-3130-5

    Topics