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Article: Silicon nitride chirped spiral Bragg grating with large group delay
Title | Silicon nitride chirped spiral Bragg grating with large group delay |
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Authors | |
Issue Date | 2020 |
Citation | APL Photonics, 2020, v. 5, n. 10, article no. 101302 How to Cite? |
Abstract | As one of the most important optical filtering devices, Bragg gratings have been extensively used in various systems. A long Bragg grating is desired for many applications including frequency selection in semiconductor lasers and dispersion control for ultra-short pulses. As a prominent example, integrated spiral Bragg grating waveguides (SBGWs) have drawn much attention in the years. However, until now, the length of an integrated grating is still limited to a few milli-meters due to total waveguide loss. In this work, we propose and demonstrate a novel long chirped SBGW with waveguide loss as low as 0.05 dB/cm on a silicon nitride (Si3N4) platform. A 13.8 cm SBGW is fabricated, which is the longest on-chip waveguide grating reported so far. The SBGW's reflection bandwidth is 9.2 nm from 1556.3 nm to 1565.5 nm, and it provides a total of 1440 ps group delay, that is, -156.5 ps/nm of dispersion. The group delay response shows great linearity and temperature stability. This integrated device holds great potential for various applications including in-line dispersion compensation, optical true delay phase array, and microwave photonics. |
Persistent Identifier | http://hdl.handle.net/10722/321902 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Du, Zhenmin | - |
dc.contributor.author | Xiang, Chao | - |
dc.contributor.author | Fu, Tingzhao | - |
dc.contributor.author | Chen, Minghua | - |
dc.contributor.author | Yang, Sigang | - |
dc.contributor.author | Bowers, John E. | - |
dc.contributor.author | Chen, Hongwei | - |
dc.date.accessioned | 2022-11-03T02:22:14Z | - |
dc.date.available | 2022-11-03T02:22:14Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | APL Photonics, 2020, v. 5, n. 10, article no. 101302 | - |
dc.identifier.uri | http://hdl.handle.net/10722/321902 | - |
dc.description.abstract | As one of the most important optical filtering devices, Bragg gratings have been extensively used in various systems. A long Bragg grating is desired for many applications including frequency selection in semiconductor lasers and dispersion control for ultra-short pulses. As a prominent example, integrated spiral Bragg grating waveguides (SBGWs) have drawn much attention in the years. However, until now, the length of an integrated grating is still limited to a few milli-meters due to total waveguide loss. In this work, we propose and demonstrate a novel long chirped SBGW with waveguide loss as low as 0.05 dB/cm on a silicon nitride (Si3N4) platform. A 13.8 cm SBGW is fabricated, which is the longest on-chip waveguide grating reported so far. The SBGW's reflection bandwidth is 9.2 nm from 1556.3 nm to 1565.5 nm, and it provides a total of 1440 ps group delay, that is, -156.5 ps/nm of dispersion. The group delay response shows great linearity and temperature stability. This integrated device holds great potential for various applications including in-line dispersion compensation, optical true delay phase array, and microwave photonics. | - |
dc.language | eng | - |
dc.relation.ispartof | APL Photonics | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Silicon nitride chirped spiral Bragg grating with large group delay | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1063/5.0022963 | - |
dc.identifier.scopus | eid_2-s2.0-85092715198 | - |
dc.identifier.volume | 5 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | article no. 101302 | - |
dc.identifier.epage | article no. 101302 | - |
dc.identifier.eissn | 2378-0967 | - |
dc.identifier.isi | WOS:000576430400001 | - |