Title :
Pump-Suppressed Nondegenerate Four-Wave Mixing in a Highly Nonlinear Photonic Crystal Fiber Sagnac Loop
Author :
Liu, Jianguo ; Yeo, Yong-Kee ; Wang, Yixin ; Xue, Lifang ; Wang, Dawei ; Rong, Weifeng ; Zhou, Luying ; Xiao, Gaoxi ; Yu, Xiaojun ; Cheng, Tee-Hiang
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
We propose a configuration for suppressing pumps in a broad-and flat-band tunable nondegenerate four-wave mixing (FWM) wavelength converter. The signal and pumps are coupled into a highly nonlinear photonic crystal fiber symmetrical Sagnac loop. After the FWM wavelength conversion in the loop, the idler is separated from the pumps without a filter. In our experiment, a flat wavelength conversion bandwidth of 36 nm, conversion efficiency of -11 dB, pump-to-signal suppression ratio of 48 dB, and idler-to-pump suppression ratio of 15 dB are achieved.
Keywords :
Sagnac interferometers; convertors; holey fibres; multiwave mixing; optical pumping; photonic crystals; highly nonlinear photonic crystal fiber Sagnac loop; idler-to-pump suppression; nondegenerate four-wave mixing; pump-to-signal suppression; wavelength 36 nm; Highly nonlinear photonic crystal fiber; nondegenerate four-wave mixing (FWM); pumps suppression; symmetrical Sagnac loop; wavelength conversion;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2007131
