Conference paper
MEMS-based wavelength and orbital angular momentum demultiplexer for on-chip applications
Department of Photonics Engineering, Technical University of Denmark1
Metro-Access and Short Range Systems, Department of Photonics Engineering, Technical University of Denmark2
Networks Technology and Service Platforms, Department of Photonics Engineering, Technical University of Denmark3
Samara National Research University4
Far Eastern Federal University5
Technische Universität Darmstadt6
Karlsruhe Institute of Technology7
Summary form only given. We demonstrate a new tunable MEMS-based WDM&OAM Fabry-Pérot filter for simultaneous wavelength (WDM) and Orbital Angular Momentum (OAM) (de)multiplexing. The WDM&OAM filter is suitable for dense on-chip integration and dedicated for the next generation of optical interconnects utilizing all three degrees of freedom of the electromagnetic waves: wavelength, polarization, and OAM.
The WDM&OAM filter consists of two Distributed Bragg Reflectors (DBRs): a bottom one fixed to the substrate and a movable top MEMS DBR. An applied tuning current, changing the resonator length, extends the top DBR and hence selects the central filter wavelength. A spiral phase mask on the top switches the OAM order by ±1, ±2, etc.
The MEMS filter shows a full-width at half-maximum (FWHM) bandwidth of about 0.2 nm and a free spectral range (FSR) of about 126 nm. The phase mask provides sufficient OAM state purity in a 35 nm window around 1550 nm, covering well the whole C-band.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2017 |
| Pages: | 1-1 |
| Proceedings: | The 2017 European Conference on Lasers and Electro-Optics |
| ISBN: | 1509067361 , 150906737X , 150906737x , 9781509067367 and 9781509067374 |
| Types: | Conference paper |
| DOI: | 10.1109/CLEOE-EQEC.2017.8087118 |
| ORCIDs: | Lyubopytov, Vladimir |
