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- Deriushkina, Ekaterina, 1992, et al.
(författare)
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Dual-Comb Swept-Wavelength Interferometry : Theory and Experiment
- 2022
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Ingår i: Journal of Lightwave Technology. - : Institute of Electrical and Electronics Engineers Inc.. - 0733-8724 .- 1558-2213. ; 40:19, s. 6508-6516
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Tidskriftsartikel (refereegranskat)abstract
- Much efforts have been put to elaborate and improve different high precision measurement schemes for characterization of advanced photonic devices and optical fibers with increasing bandwidth requirements. In light of this, swept-wavelength interferometry and dual-comb spectroscopy have been extensively applied in characterization procedures. In this paper we present in detail an experimental scheme that combines these two techniques and overcomes their limitations by using a tunable laser source in order to sweep over the frequency comb spacing and capture all intermediate frequencies. We demonstrate full-field broadband measurements over 1.25 THz comb bandwidth with increased frequency resolution, which can be performed in only 5 ms sweep. We also show that the nonlinearity of the laser sweep can be removed without an auxiliary interferometer in the setup.
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- Tipsuwannakul, Ekawit, 1982, et al.
(författare)
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Influence of self- and cross-phase modulation on 40 Gbaud dual polarization DQPSK/D8PSK signals in 10 Gbit/s OOK WDM systems
- 2010
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Ingår i: Optics Express. - : Optical Society of America. - 1094-4087 .- 1094-4087. ; 18:23, s. 24178-24188
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Tidskriftsartikel (refereegranskat)abstract
- This paper, for the first time, investigates the nonlinear degradation of 40 Gbaud single- and dual polarization RZ-DQPSK/D8PSK signals caused by SPM and XPM-induced crosstalk from neighboring 10 Gbit/s NRZ-OOK channels in an WDM upgrade scenario. The investigations were numerically and experimentally conducted over a 320 km transmission link with three different wavelength configurations to address the impact of the walk-off length. The paper also presents the first numerical analysis of the XPM dependence on the relative state of polarization of the D8PSK with respect to the neighbors. © 2010 Optical Society of America.
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- Lundström, Carl Peter, 1982, et al.
(författare)
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Tension-optimized highly nonlinear fibers for parametric applications
- 2012
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Ingår i: European Conference on Optical Communications (ECOC), Amsterdam, The Netherlands. - 9781557529503 ; , s. Paper We.1.F-
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Konferensbidrag (refereegranskat)abstract
- We investigate the Brillouin and dispersive properties including localized measurements of nonlinear fibers spooled with tension gradients and discuss their application in parametric devices.
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9. |
- Tong, Zhi, 1977, et al.
(författare)
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Noise figure measurements in phase-insensitive and phase-sensitive fiber parametric amplifier cascade
- 2010
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Ingår i: Optical Fiber Communication Conference, OFC 2010; San Diego, CA; United States; 21 March 2010 through 25 March 2010. - 2162-2701. - 9781557528841 ; , s. OWT4-
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Konferensbidrag (refereegranskat)abstract
- By cascading two non-degenerate inline fiber-optic parametric amplifiers, we observe NF ~2dB (beating phase-insensitive quantum limit) at 16-dB gain for the second (phase-sensitive) stage after subtracting the excess noise from the first (phase-insensitive) stage.
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