Spectral Shaping with Integrated Self-Coupled Sagnac Loop Reflectors

Abstract

We propose and theoretically investigate integrated photonic filters based on coupled Sagnac loop reflectors (SLRs) formed by a self-coupled wire waveguide. By tailoring coherent mode interference in the device, three different filter functions are achieved, including Fano-like resonances, wavelength interleaving, and varied resonance mode splitting. For each function, the impact of device structural parameters is analyzed to facilitate optimized performance. Our results theoretically verify the proposed device as a compact multi-functional integrated photonic filter for flexible spectral shaping.

arXiv comment6 pages,4 figures, 89 references

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Cited by in corpus (4)

• Sagnac interference in integrated photonics for reflection mirrors, gyroscopes, filters, and wavelength interleavers
• Silicon nanophotonic chips featuring Sagnac loop reflectors as a basis for advanced optical spectral filters
• Rabi resonance splitting phenomena in photonic integrated circuits
• Modeling of photonic integrated resonators using advanced scattering matrix methods