RT Journal Article
T1 Polarization-independent complex bragg grating filters on silicon nitride
A1 Fernández-Hinestrosa, Fernando
A1 Luque-González, José Manuel
A1 Cheben, Pavel
A1 Schmid, Jens H.
A1 Sánchez-Postigo, Alejandro
A1 Wanguemert-Pérez, Juan Gonzalo
A1 Molina-Fernández, Íñigo
A1 Ortega-Moñux, Alejandro
K1 Filtros ópticos
K1 Fotónica
K1 Sistemas de telecomunicaciones
AB Integrated optical filters are essential components of on-chip multiplexers,which play a critical role in enhancing data throughput for high-demandnetworks. Since optical multiplexers are typically connected throughfiber-optic links where the polarization state of light fluctuates randomly,polarization insensitivity is an important prerequisite for integrated opticalfilters. In this work, polarization-insensitive optical filters are demonstrated onthe silicon nitride platform operating in the datacom O-band. The filters arebased on cladding-modulated Bragg gratings, which offer improvedfabrication tolerances and reduced losses compared to conventional sidewallgratings. By judiciously designing grating dimensions, filters aredemonstrated with single-band, dual-band, and four-band spectralcharacteristics. The fabricated filters achieve an insertion loss below 1.0 dBand a band rejection greater than 25 dB for spectral bands that are 3 nm wideand 9 nm apart.
PB Wiley
YR 2025
FD 2025-07
LK https://hdl.handle.net/10630/39941
UL https://hdl.handle.net/10630/39941
LA eng
NO A. Fernández-Hinestrosa, J. M. Luque-González, P. Cheben, J. H. Schmid, A. Sánchez-Postigo, J. G. Wangüemert-Pérez, I. Molina-Fernández, A. Ortega-Moñux, Polarization-Independent Complex Bragg Grating Filters on Silicon Nitride. Laser Photonics Rev 2025, e02114. https://doi.org/10.1002/lpor.202402114
NO Funding for open access charge: Universidad de Málaga/CBUA.
NO Collaborative Science, Technology and Innovation Program (CSTIP) Small Teams (ST-R2-01-02) and High Throughput and Secure Networks Challenge Program at the National Research Council Canada (HTSN- 210)
NO Ministerio de Ciencia, Innovación y Universidades (FPU21/04914)
NO Ministerio de Economía y Competitividad (PDC2023-145833-I00, PID2023-151178OB-I00).
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 25 ene 2026