160-Gb/s all-optical phase-transparent wavelength conversion through cascaded SFG-DFG in a broadband linear-chirped PPLN waveguide | Zendy

Guo-Wei Lu | Zendy; Satoshi Shinada | Zendy; Hideaki Furukawa | Zendy; Naoya Wada | Zendy; Tetsuya Miyazaki | Zendy; Hiromasa Ito | Zendy

Open Access

160-Gb/s all-optical phase-transparent wavelength conversion through cascaded SFG-DFG in a broadband linear-chirped PPLN waveguide

Author(s) -

Guo-Wei Lu,

Satoshi Shinada,

Hideaki Furukawa,

Naoya Wada,

Tetsuya Miyazaki,

Hiromasa Ito

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.006064

Subject(s) - optics , lithium niobate , wavelength , materials science , keying , broadband , chirp , bandwidth (computing) , physics , telecommunications , laser , computer science

We experimentally demonstrated ultra-fast phase-transparent wavelength conversion using cascaded sum- and difference-frequency generation (cSFG-DFG) in linear-chirped periodically poled lithium niobate (PPLN). Error-free wavelength conversion of a 160-Gb/s return-to-zero differential phase-shift keying (RZ-DPSK) signal was successfully achieved. Thanks to the enhanced conversion bandwidth in the PPLN with linear-chirped periods, no optical equalizer was required to compensate the spectrum distortion after conversion, unlike a previous demonstration of 160-Gb/s RZ on-off keying (OOK) using fixed-period PPLN.

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