| Authors: | R. Halir, D. Vermeulen, G. Roelkens | | Title: | Reducing polarization dependent loss of silicon-on-insulator fiber to chip grating couplers | | Format: | International Journal | | Publication date: | 3/2010 | | Journal/Conference/Book: | IEEE Photonics Technology Letters
| | Volume(Issue): | 22(6) p.389-391 | | DOI: | 10.1109/lpt.2009.2039869 | | Citations: | 28 (Dimensions.ai - last update: 24/11/2024)
22 (OpenCitations - last update: 3/5/2024)
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Abstract
For many telecommunication applications, low polarization-
dependent loss (PDL) operation is mandatory. On the
silicon-on-insulator photonic wire platform, this can be achieved
using polarization diversity configurations. However, as we show
here, when using two-dimensional grating couplers for near vertical
fiber input and output, the low PDL bandwidth is limited.We
propose and demonstrate the use of a phase shifter in one of the
arms of the polarization diversity circuit to effectively reduce PDL
(0.15-dB PDL is shown) and increase the low PDL bandwidth. Related Research Topics
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