Počet záznamů: 1
Complex spectral filters in silicon waveguides based on cladding-modulated Bragg gratings
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SYSNO ASEP 0543294 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Complex spectral filters in silicon waveguides based on cladding-modulated Bragg gratings Tvůrce(i) Pereira-Martin, D. (ES)
Manuel Luque-Gonzalez, J. (ES)
Wangüemert-Pérez, G. (ES)
Hadij-ElHouati, A. (ES)
Molina-Fernández, I. (ES)
Cheben, P. (CA)
Schmid, J.H. (CA)
Wang, S. (CA)
Ye, W. (CA)
Čtyroký, Jiří (URE-Y) RID
Ortega-Moñux, A. (ES)Celkový počet autorů 11 Zdroj.dok. Optics Express. - : Optical Society of America - ISSN 1094-4087
Roč. 29, č. 11 (2021), s. 15867-15881Poč.str. 14 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Bragg gratings ; Photonics ; Waveguide gratings Vědní obor RIV BH - Optika, masery a lasery Obor OECD Optics (including laser optics and quantum optics) CEP GA19-00062S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora URE-Y - RVO:67985882 UT WOS 000654369300001 DOI 10.1364/OE.420696 Anotace Spectral filters are important building blocks for many applications in integrated photonics, including datacom and telecom, optical signal processing and astrophotonics. Sidewall-corrugated waveguide grating is typically the preferred option to implement spectral filters in integrated photonic devices. However, in the high-index contrast silicon-on-insulator (SOI) platform, designs with corrugation sizes of only a few tens of nanometers are often required, which hinders their fabrication. In this work, we propose a novel geometry to design complex Bragg filters with an arbitrary spectral response in silicon waveguides with laterally coupled Bragg loading segments. The waveguide core is designed to operate with a delocalized mode field, which helps reduce sensitivity to fabrication errors and increase accuracy on synthesized coupling coefficients and the corresponding spectral shape control. We present an efficient design strategy, based on the layer-peeling and layer-adding algorithms, that allows to readily synthesize an arbitrary target spectrum for our cladding-modulated Bragg gratings. The proposed filter concept and design methodology are validated by designing and experimentally demonstrating a complex spectral filter in an SOI platform, with 20 non-uniformly spaced spectral notches with a 3-dB linewidth as small as 210 pm Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2022 Elektronická adresa https://doi.org/10.1364/OE.420696
Počet záznamů: 1