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Penalties From 2D Grating Coupler Induced Polarization Crosstalk in Silicon Photonic Coherent Transceivers
- Source :
- IEEE Photonics Journal, Vol 14, Iss 5, Pp 1-11 (2022)
- Publication Year :
- 2022
- Publisher :
- IEEE, 2022.
-
Abstract
- Silicon photonic two-dimensional grating couplers for C- and O-band dual-polarization coherent transceivers are analyzed with respect to their polarization splitting/combining performance. Due to scattered light in the grating's plane, a linear cross-polarization results. The latter is responsible for a limited polarization split ratio and a polarizations' non-orthogonality. The impact of these two quantities is evaluated by system-level simulations with regard to OSNR penalties in coherent systems. For both C- and O-band, a design modification for reduced penalties is proposed.
Details
- Language :
- English
- ISSN :
- 19430655
- Volume :
- 14
- Issue :
- 5
- Database :
- Directory of Open Access Journals
- Journal :
- IEEE Photonics Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.9d34af677ea64a22b2301a1955fb6f8d
- Document Type :
- article
- Full Text :
- https://doi.org/10.1109/JPHOT.2022.3206619