Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Feature Issues

Continuous-wave wavelength conversion in a photonic crystal fiber with two zero-dispersion wavelengths

Thomas V. Andersen, Karen Marie Hilligsøe, Carsten K. Nielsen, Jan Thøgersen, K. P. Hansen, Søren R. Keiding, and Jakob J. Larsen

Open Access Open Access

Abstract

We demonstrate continuous-wave wavelength conversion through four-wave mixing in an endlessly single mode photonic crystal fiber. Phasematching is possible at vanishing pump power in the anomalous dispersion regime between the two zero-dispersion wavelengths. By mixing appropriate pump and idler sources, signals in the range 500–650 nm are obtained in good accordance with calculated phasematching curves. The conversion efficiency from idler to signal power is currently limited to 0.3% by the low spectral density of the pump and idler sources at hand, but can be greatly enhanced by applying narrow line width lasers.

©2004 Optical Society of America

Full Article  |  PDF Article

Corrections

Thomas V. Andersen, Karen Marie Hilligsøe, Carsten K. Nielsen, Jan Thøgersen, K. P. Hansen, Søren R. Keiding, and Jakob J. Larsen, "Continuous-wave wavelength conversion in a photonic crystal fiber with two zero-dispersion wavelengths: erratum," Opt. Express 13, 3581-3582 (2005)
https://opg.optica.org/oe/abstract.cfm?uri=oe-13-9-3581
More Like This
Continuous-wave wavelength conversion in a photonic crystal fiber with two zero-dispersion wavelengths: erratum

Thomas V. Andersen, Karen Marie Hilligsøe, Carsten K. Nielsen, Jan Thøgersen, K. P. Hansen, Søren R. Keiding, and Jakob J. Larsen
Opt. Express 13(9) 3581-3582 (2005)

Effect of frequency chirp on supercontinuum generation in photonic crystal fibers with two zero-dispersion wavelengths

Hua Zhang, Song Yu, Jie Zhang, and Wanyi Gu
Opt. Express 15(3) 1147-1154 (2007)

Supercontinuum generation in a photonic crystal fiber with two zero dispersion wavelengths

Karen Marie Hilligsøe, Thomas Vestergaard Andersen, Henrik Nørgaard Paulsen, Carsten Krogh Nielsen, Klaus Mølmer, Søren Keiding, Rene Kristiansen, Kim Per Hansen, and Jakob Juul Larsen
Opt. Express 12(6) 1045-1054 (2004)

View More...

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (8)
Fig. 1.
Fig. 1. Left: Dispersion profile. Right: Cross section of the fiber. The core is surrounded by six air holes of which two are slightly bigger than the rest. The result is a higher index difference and thereby birefringence.

Download Full Size | PDF

Fig. 2.
Fig. 2. Left: The scaled dispersion terms β 2, β 4, β 6 and β 8 as functions of λ. The higher order dispersion terms are of considerable size and change sign several times in the shown interval. Right: A zoom on the high-frequency ZDW shows that β 4 and β 8 are negative below the ZDW. They can therefore compensate for the positive β 2 and β 6 which means that phasematching is possible in the normal dispersion regime.

Download Full Size | PDF

Fig. 3.
Fig. 3. Left: Phasematching with γP 0=0. For a given pump wavelength, the phasematched Stokes and anti-Stokes wavelengths are found on a vertical line. Right: At high pump power an additional set of phasematched wavelengths appear.

Download Full Size | PDF

Fig. 4.
Fig. 4. Closeup of the phasematching curve close to the lowest zero-dispersion wavelength. At wavelengths below the zero-dispersion, two sets of wavelengths can be phasematched simultaneously as indicated by arrows.

Download Full Size | PDF

Fig. 5.
Fig. 5. Setup.

Download Full Size | PDF

Fig. 6.
Fig. 6. Spectra at phasematching. In (c), (d) and (e) the visible and infrared spectra were recorded with different detectors and joined here for clarity. In all figures, the left peak is the signal while the middle and right peaks are pump and idler respectively. To avoid saturation of the detector, various filters were inserted to reduce both pump and idler power. As a consequence the amplitudes of the peaks do not represent the power distribution.

Download Full Size | PDF

Fig. 7.
Fig. 7. Phasematched wavelengths along the two axes. Matched wavelengths are found on vertical lines. As an example the phasematching with the 1064 nm diode is marked. The zero-dispersion wavelength at 755 nm is also indicated. In reality each axis has its own zero-dispersion wavelength which results in a shifted phasematching curve. Our experiments indicate that the major axis has its zero-dispersion wavelength in the vicinity of 785 nm as illustrated by dashed lines.

Download Full Size | PDF

Fig. 8.
Fig. 8. Left: The steep slope of the phasematching curve implies that only a part of the pump is actually phasematched to the laser diode at 1493 nm. Right: Measured power at 518 nm as a function of pump power when the idler power is 40 mW. The full line is the analytical approximation presented in [21].

Download Full Size | PDF

Tables (1)

Tables Icon

Table 1. Coefficients of the 9th order polynomial fit to the dispersion data in Fig. 1.

View Table

Equations (8)

Equations on this page are rendered with MathJax. Learn more.

∂ A p ∂ z = i γ [ ( ∣ A p ∣ 2 + 2 ( ∣ A i ∣ 2 + ∣ A s ∣ 2 ) ) A p + 2 A i A s A p * exp ( i Δ β z ) ] − α p 2 A p
∂ A i ( s ) ∂ z = i γ [ ( ∣ A i ( s ) ∣ 2 + 2 ( ∣ A p ∣ 2 + ∣ A s ( i ) ∣ 2 ) ) A i ( s ) + A p 2 A s ( i ) * exp ( i Δ β z ) ] − α i ( s ) 2 A i ( s )
P s ( L ) = P i ( 0 ) ( 1 + γ P 0 ⁄ g ) 2 sinh 2 ( g L )
g = ( γ P 0 ) 2 − ( κ 2 ) 2
κ = Δ β + 2 γ P 0
Ω s 2 β 2 + 1 12 Ω s 4 β 4 + 1 360 Ω s 6 β 6 + … + 2 γ P 0 = 0
β 2 ( λ ) = ∑ n c n λ n
β n , scaled = 2 n ! ( 10 15 s − 1 ) ( n − 2 ) β n .
Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use