| 1. |
- Fontaine, Nicolas K., et al.
(författare)
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Digital turbulence compensation of free space optical link with multimode optical amplifier
- 2019
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Ingår i: IET Conference Publications. - : Institution of Engineering and Technology. ; 2019:CP765
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Konferensbidrag (refereegranskat)abstract
- We demonstrate digital turbulence compensation using a 12-spatial mode digital coherent receiver with a multimode preamplifier that provides a 6-dB sensitivity improvement. This combination acts similarly to ideal lossless adaptive optics. Coherent superposition of 12 spatial-modes reduced median BER from 0.1 to 1×10-5 compared to traditional single-mode detection.
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| 2. |
- Mazur, Mikael, 1990, et al.
(författare)
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Characterization of Long Multi-Mode Fiber Links using Digital Holography
- 2019
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Ingår i: Optics InfoBase Conference Papers. - 2162-2701. ; Part F160-OFC 2019
-
Konferensbidrag (refereegranskat)abstract
- We propose to use digital holography to characterize long multi-mode fiber links. A four segment 26.5km fiber span supporting 45 spatial modes is analyzed, showing the evolution of both mode-dependent loss and cross talk.
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| 3. |
- Mazur, Mikael, 1990, et al.
(författare)
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Optical Arbitrary Waveform Generator Based on Time-Domain Multiplane Light Conversion
- 2019
-
Ingår i: 2019 Optical Fiber Communications Conference and Exhibition, OFC 2019 - Proceedings. - Washington, D.C. : OSA. - 2162-2701. ; Part F160-OFC 2019
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Konferensbidrag (refereegranskat)abstract
- We present theoretically lossless optical arbitrary waveform generation based on time-domain multi-plane light conversion, with alternating phase modulation and dispersion. We demonstrate the concept by implementing Nyquist shaped QPSK and OOK using phase modulation only.
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| 4. |
- Mazur, Mikael, 1990, et al.
(författare)
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Optical frequency comb modulator for multichannel systems
- 2019
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Ingår i: IET Conference Publications. ; 2019:CP765
-
Konferensbidrag (refereegranskat)abstract
- We demonstrate a full-field modulator for encoding independent waveforms onto wavelength separated inputs without demultiplexing. The modulator uses phase-only modulation and dispersive filtering for temporal reshaping and has no theoretical losses. Simultaneous modulation of three wavelengths with independent random 1% roll-off data patterns is experimentally verified.
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| 5. |
- Mazur, Mikael, 1990, et al.
(författare)
-
Reduced footprint multiplane light propagation mode multiplexers
- 2019
-
Ingår i: IET Conference Publications. ; 2019:CP765
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Konferensbidrag (refereegranskat)abstract
- We design, assemble and characterize three different multiplane light propagation (MPLC)-based mode multiplexers, including a device with reduced size, supporting 45, 45 and 36 spatial modes, respectively. Ranging from 2700 mm3 to 146 mm3, all devices achieve <-12 dB cross talk, showing that MPLC can enable compact multiplexers.
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| 6. |
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| 7. |
- Wittek, Steffen, et al.
(författare)
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Mode-Multiplexed Transmission within and Across Mode Groups of a Multimode-Fiber
- 2019
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Ingår i: 2019 Optical Fiber Communications Conference and Exhibition, OFC 2019 - Proceedings. - Washington, D.C. : OSA. - 9781943580538
-
Konferensbidrag (refereegranskat)abstract
- We show mode-multiplexed transmission over individual mode groups up to 9 groups of a 27 km long graded-index multimode fiber. We also investigate transmission distances up to 500 km using a recirculating loop arrangement for the first 6 mode groups using QPSK and 16-QAM signals.
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