| Autor: |
Guerber S, Alonso-Ramos CA, Le Roux X, Vulliet N, Cassan E, Marris-Morini D, Boeuf F, Vivien L |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2020 Dec 01; Vol. 45 (23), pp. 6559-6562. |
| DOI: |
10.1364/OL.411332 |
| Abstrakt: |
A polarization tolerant optical receiver is a key building block for the development of wavelength division multiplexing based high-speed optical data links. However, the design of a polarization independent demultiplexer is not trivial. In this Letter, we report on the realization of a polarization tolerant arrayed waveguide grating (AWG) on a 300-mm silicon nitride (SiN) photonic platform. By introducing a series of individual polarization rotators in the middle of the waveguide array, the polarization dependence of the AWG has been substantially reduced. Insertion losses below 2.2 dB and a crosstalk level better than -29 d B has been obtained for transverse electric and transverse magnetic polarizations on a four-channel coarse AWG. The AWG temperature sensitivity has also been evaluated. Thanks to the low thermo-optical coefficient of SiN, a thermal shift below 12 pm/°C has been demonstrated. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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