Projects per year
Abstract
We report the importance of cross-phase modulation (XPM) on the coherence of a low-energy probe pulse co-propagating with a high-energy pump pulse that generates incoherent supercontinuum in all-normal dispersion (ANDi) fiber due to Raman amplification of quantum noise. By investigating numerous fiber and pulse parameters, we show consistently that for weak probe pulses, the XPM from the pump is the dominant influence on the degradation of the probe coherence. We show that the faster decoherence at the pump leading edge means that the probe coherence is reduced more significantly when the probe has a higher group velocity, i.e., when an orthogonally polarized probe is aligned to the fast (lower refractive index) axis of the fiber or when a co-polarized probe has a longer central wavelength. Simulations show that this effect occurs for both polarization-maintaining (PM) and non-PM ANDi fibers and can result in a probe decoherence rate that is higher than that of the pump. These previously unreported results extend our earlier scalar simulations showing incoherent supercontinuum within a single pulse.
Original language | English |
---|---|
Pages (from-to) | 635-644 |
Number of pages | 10 |
Journal | Journal of the Optical Society of America B |
Volume | 37 |
Issue number | 3 |
DOIs | |
Publication status | Published - 11 Feb 2020 |
Keywords
- cross-phase modulation
- all-normal dispersion
- pulse parameters
Fingerprint
Dive into the research topics of 'Decoherence due to XPM-assisted Raman amplification for polarization or wavelength offset pulses in all-normal dispersion supercontinuum generation'. Together they form a unique fingerprint.Projects
- 1 Active
-
Modelling polarization dynamics and coherence in all-normal dispersion supercontinuum generation
Feehan, J.
19/11/18 → …
Project: Research - no external funding
Datasets
-
Data for: "Decoherence due to XPM-assisted Raman amplification for polarization or wavelength offset pulses in all-normal dispersion supercontinuum generation"
Feehan, J. (Creator) & Price, J. (Contributor), University of Strathclyde, 12 Dec 2019
DOI: 10.15129/a254c0da-7324-4215-8430-ad383122de12
Dataset