Journal article
Time Lens based Optical Fourier Transformation for All-Optical Signal Processing of Spectrally-Efficient Data
Department of Photonics Engineering, Technical University of Denmark1
Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark2
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark3
National Space Institute, Technical University of Denmark4
Department of Micro- and Nanotechnology, Technical University of Denmark5
We review recent progress in the use of time lens based optical Fourier transformation for advanced all-optical signal processing. A novel time lens based complete optical Fourier transformation (OFT) technique is introduced. This complete OFT is based on two quadratic phase-modulation stages using four-wave mixing (FWM), separated by a dispersive medium, which enables time-to-frequency and frequency-to-time conversions simultaneously, thus performing an exchange between the temporal and spectral profiles of the input signal.
Using the proposed complete OFT, several advanced all-optical signal processing schemes for spectrally-efficient systems and networks have been achieved, including all-optical generation, detection and format conversion of spectrally-efficient signals. The spectrally-efficient signals in this paper mainly refer to efficiently multiplexed signals with a high symbol rate per Hz, such as orthogonal frequency division multiplexing (OFDM), Nyquist wavelength-division multiplexing (Nyquist-WDM) and Nyquist optical time division multiplexing (Nyquist-OTDM) signals.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2017 |
| Pages: | 799-806 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2016.2614186 |
| ORCIDs: | Guan, Pengyu , Lillieholm, Mads , Galili, Michael , Hu, Hao , Morioka, Toshio and Oxenløwe, Leif Katsuo |
All-optical OFDM All-optical signal processing Atomic and Molecular Physics, and Optics Four wave mixing Fourier transformations Fourier transforms Frequency division multiplexing Lenses Metadata Multiplexed signals Multiplexing Nyquist Nyquist wavelength division multiplexing (nyquist WDM) Nyquist-WDM OTDM Optical fiber communication Optical signal processing Optical time division multiplexing Orthogonal frequency division multiplexing Phase modulation Signal processing Time division multiplexing Wavelength division multiplexing optical Fourier transformation optical signal processing
Dispersion Fourier transform optics Frequency conversion Nonlinear optics Nyquist optical time division multiplexing signals Nyquist wavelength-division multiplexing Nyquist-OTDM OFDM OFDM modulation Optical transmitters all-optical signal processing dispersive medium four-wave mixing frequency-time conversion lenses optical information processing orthogonal frequency division multiplexing phase modulation quadratic phase-modulation stages spectrally-efficient data time division multiplexing time lens-based optical Fourier transformation time-frequency conversion wavelength division multiplexing
