Journal article
Parametric Amplification, Wavelength Conversion, and Phase Conjugation of a 2.048-Tbit/s WDM PDM 16-QAM Signal
We demonstrate polarization-independent parametric amplification of a 2.048-Tbit/s 8-WDM PDM 16-QAM signal and simultaneous wavelength conversion and phase conjugation in a highly nonlinear fiber. Two high-power continuous-wave pumps with orthogonal polarizations and counter-phase modulation are used in the fiber optical parametric amplifier (FOPA) to achieve broadband flat gain, polarization independence, and high-quality idler generation.
The polarization-independent FOPA is amplitude and phase preserving and has similar to 10 dB on-off gain for the signal and similar to 9 dB conversion efficiency for the idler with a 1-dB bandwidth of similar to 16 nm. Compared to the back-to-back case, the amplified signals and the wavelength-converted conjugates have mean Q(2) penalties of only 0.6 and 0.4 dB, respectively, with variances of Q(2) factors across all the wavelength-division-multiplexed channels of only 0.3 dB.
This demonstration shows the great promise of optical signal processing techniques to simultaneously process large-capacity multiple-channel multilevel signals with almost no latency and potentially low power consumption.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2015 |
| Pages: | 1286-1291 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2014.2370038 |
| ORCIDs: | Hu, Hao |
16-state quadrature amplitude modulation (16-QAM) 640 GBIT/S 8-WDM PDM 16-QAM signal Amplitude modulation Communication, Networking and Broadcast Technologies ENGINEERING, FIBER FOPA Fiber amplifiers Fiber nonlinear optics Fiber optical parametric amplification (FOPA) Fiber optical parametric amplifications Fibers Four wave mixing Gain Highly nonlinear fiber(HNLF) Modulation Multiplexing Nonlinear optics OPTICS Optical fiber amplifiers Optical fiber polarization Optical frequency conversion Optical parametric amplifiers Optical signal processing Optical signal processing (OSP) Optical wavelength conversion Phase modulation Photonics and Electrooptics Polarization Polarization diversity Quadrature amplitude modulation Signal processing TELECOMMUNICATIONS Wavelength division multiplexing bit rate 2.048 Tbit/s bit rate 2.048E+12 bit/s broadband flat gain fiber optical parametric amplifier four-wave mixing (FWM) gain 0.3 dB gain 0.4 dB gain 0.6 dB gain 1 dB gain 1.0E+00 dB gain 3.0E-01 dB gain 4.0E-01 dB gain 6.0E-01 dB high-power continuous-wave pump high-quality idler generation highly non-linear fiber (HNLF) highly nonlinear fiber large-capacity multiple-channel multilevel signal optical fibre amplifiers optical fibre polarisation optical information processing optical modulation optical parametric amplifiers optical phase conjugation (OPC) optical signal processing (OSP) optical signal processing technique orthogonal polarization-independent parametric amplification phase conjugation phase modulation polarization diversity polarization-division-multiplexing power consumption quadrature amplitude modulation wavelength conversion wavelength division multiplexing wavelength-division-multiplexed channel wavelength-division-multiplexing (WDM)
