Abstract
We propose and demonstrate an integrated 8-channel dense wavelength division multiplexer in silicon-on-insulator platform. The device layout comprises of 7 stages in a tree topology. Each stage is based on an unbalanced Mach-Zehnder interferometer with a nested ring resonator. The transfer function of each stage is that of an auto-regressive moving-average filter, characterized by a uniform passband, strong out-of-band rejection and sharp spectral transitions. The passband of each channel is extremely narrow: only 0.135 nm (16 GHz), and the worst-case crosstalk among channels is -22 dB. Individual phase delays within the device are trimmed through selective photo-removal of an upper cladding layer of photo-sensitive chalcogenide glass. The devices are suitable for integrated-photonic processing of radio-over-fiber and mm-wave communication.
| Original language | English |
|---|---|
| Title of host publication | MWP 2018 - 2018 International Topical Meeting on Microwave Photonics |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781538652268 |
| DOIs | |
| State | Published - 29 Nov 2018 |
| Event | 2018 International Topical Meeting on Microwave Photonics, MWP 2018 - Toulouse, France Duration: 22 Oct 2018 → 25 Oct 2018 |
Publication series
| Name | MWP 2018 - 2018 International Topical Meeting on Microwave Photonics |
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Conference
| Conference | 2018 International Topical Meeting on Microwave Photonics, MWP 2018 |
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| Country/Territory | France |
| City | Toulouse |
| Period | 22/10/18 → 25/10/18 |
Bibliographical note
Publisher Copyright:© 2018 IEEE.
Funding
ACKNOWLEDGMENT The authors thank the financial support of the MAGNET program of the Israeli Innovation Authority, through the PETA CLOUD Consortium for optical communications in data centers.
| Funders |
|---|
| Israeli Innovation Authority |
Keywords
- IIR filters
- integrated microwave photonics
- microwave photonic filter
- photonic signal processing
- silicon photonics
- wavelength division multiplexing
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