Open AccessAll-optical wavelength conversion and tuning by the cascaded sum- and difference frequency generation (cSFG/DFG) in a temperature gradient controlled Ti:PPLN channel waveguide
Author(s) -
Yeung Lak Lee,
Bong-Ahn Yu,
Chanho Jung,
YoungChul Noh,
Jongmin Lee,
DoKyeong Ko
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.002988
Subject(s) - optics , wavelength , materials science , lithium niobate , wavelength division multiplexing , energy conversion efficiency , waveguide , bandwidth (computing) , channel spacing , signal (programming language) , channel (broadcasting) , optoelectronics , physics , telecommunications , computer science , programming language
All-optical single and multiple wavelength conversion and tuning by the cascaded sum- and difference frequency generation (cSFG/DFG) have been demonstrated in a temperature gradient controlled periodically poled Ti:LiNbO3 (Ti:PPLN) channel waveguide. Up to 4 channels of wavelength division multiplexed (WDM) signals which have 100 GHz channel spacing were simultaneously wavelength converted at a 16.8 degrees C temperature difference between both end faces in a Ti:PPLN waveguide. The 3 dB signal conversion bandwidth was measured to be as broad as 48 nm at single channel conversion. The maximum wavelength conversion efficiency and optical signal to noise ratio of wavelength converted channel were approximately -16 dB and -20 dB at a total pump power level of 810 mW.