Three wave mixing using a fiber ring resonator

Abstract

employing a MgO-doped LiNbO 3 quasi-phase-matched waveguide and an erbium-doped fiber amplifier, J Opt Soc Am B 20 (2003)

Experimental demonstration of PPLN-based double ring fiber laser and its application to 40 Gb/s wavelength conversion

“…Remarkably, conventional PPLN-based wavelength converters greatly rely on the expensive external cavity laser (ECL) to provide stable continuous-wave (CW) optical lights used in the wavelength conversions . Although C. Q. Xu [22,23] and J. A. Bracken [24] have ever proposed single ring-based intracavity wavelength conversion, only one external CW optical wave can be removed.…”

All-optical single-to-dual channel wavelength conversion based on sum-frequency generation and difference-frequency generation

“…All-optical wavelength conversion is considered to be a crucial technique in next-generation optical networks [1]. Among the various proposed conversion approaches, wavelength conversions based on the second-order nonlinear interactions and their cascading in quasi-phase matched (QPM) periodically poled LiNbO 3 (PPLN) waveguides, including second-harmonic generation (SHG) [2], sum-frequency generation (SFG) [2,3], differencefrequency generation (DFG) [4,5], SHGϩDFG [3, 6 -8], SFGϩDFG [9 -12], have attracted more and more attentions in recent yeas. They fulfill the requirements of an ideal wavelength converter and manifest several distinct advantages [6], such as ultrafast nonlinear response, strict transparency, independence of bit rate and data format, negligible noise from spontaneous fluorescence, no intrinsic frequency chirp, etc.…”

“…Both theoretical and experimental researches have been focused on the PPLN-based wavelength conversion, showing impressive performances. However, in these previous schemes [2][3][4][5][6][7][8][9][10][11][12], wavelength conversion always took place from one channel to another channel [2-6, 8 -12]. Even for multichannel wavelength conversion [7], the information carried by one of the input channels was actually only copied onto one of the output channels.…”