All-optical tunable comb filters using ytterbium doped fibers and an LPG pair

We have demonstrated a new type all-optical tunable comb filter by using a long-period fiber gratings(LPG) pair spliced with an ytterbium doped fiber. When the 25.5cm long ytterbium doped fiber was used with the ytterbium doping concentration of ~0.82at%, the wavelength channel spacing and the isola...

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Bibliographic Details
Published in2013 18th OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS) pp. 1 - 2
Main Authors Yune Hyoun Kim, Bok Hyeon Kim, Swook Hann, Young-Eun Im, Jung Woon Lim, Jong-Sup Kim, Jeong Ho Kim, Ju Young Lim, Won-Taek Han
Format Conference Proceeding
LanguageEnglish
Published IEICE 01.06.2013
Subjects
Optical fiber communication
Optical fiber devices
Optical fiber filters
Optical fiber polarization
Optical pumping
Ytterbium
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Summary:We have demonstrated a new type all-optical tunable comb filter by using a long-period fiber gratings(LPG) pair spliced with an ytterbium doped fiber. When the 25.5cm long ytterbium doped fiber was used with the ytterbium doping concentration of ~0.82at%, the wavelength channel spacing and the isolation between channels were 0.7nm and 16-21dB, respectively, between 1545nm and 1555nm. Also, the optical comb filter was tuned up to `1.53π' phase shift at the launched pump power of 56mW with the LD at 976nm.
ISSN:2155-8507