Publication :
Mach-Zehnder silicon photonic modulator assisted by phase-shifted Bragg gratings

En cours de chargement...
Vignette d'image
Date
2020-03-05
Direction de publication
Direction de recherche
Titre de la revue
ISSN de la revue
Titre du volume
Éditeur
Institute of Electrical and Electronics Engineers
Projets de recherche
Structures organisationnelles
Numéro de revue
Résumé

We experimentally demonstrate a silicon photonic Mach-Zehnder modulator (MZM) assisted by phase-shifted Bragg gratings. Coupled resonators are inserted in the Bragg grating structure to significantly enhance the phase modulation efficiency, while maintaining a wide optical bandwidth compared to other resonator-based modulators. Fabricated using a CMOS-compatible foundry process, the device achieved a small-signal Vπ× L of 0.18 V.cm, which is seven times lower than a conventional silicon MZM fabricated with the same process. The device has a compact footprint, with a length of only 162 μm , and shows a modulation bandwidth of 28 GHz at a reverse bias of 1 V. Non-return-to-zero modulation is demonstrated at 30 Gb/s with a bit-error-rate (BER) below the 7%-overhead forward error correction (FEC) threshold over a bandwidth of 3.5 nm. This bandwidth should translate into an operating temperature range greater than 40 0 C.

Description
Revue
IEEE Photonics Technology Letters, Vol. 32 (8), 445-448 (2020)
DOI
10.1109/lpt.2020.2978793
URL vers la version publiée
Mots-clés
Electro-optic modulators , Optical resonators , Bragg gratings , Modulation enhancement , Silicon photonics , Bandwidth , Optical device fabrication , Optical modulation , Resonators , Adaptive optics
Citation
Type de document
article de recherche