Phase-transparent flexible waveband conversion of 43 Gb/s RZ-DQPSK signals using multiple-QPM-LN waveguides.

作者信息

Song Hongbin, Tadanaga Osamu, Umeki Takeshi, Tomita Isao, Asobe Masaki, Yamamoto Shuto, Mori Kunihiko, Yonenaga Kazushige

机构信息

NTT Photonics Labs., NTT Corporation, 3-1, Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan.

出版信息

Opt Express. 2010 Jul 19;18(15):15332-7. doi: 10.1364/OE.18.015332.

DOI:10.1364/OE.18.015332

PMID:20720910

Abstract

We report phase-transparent waveband conversion with polarization insensitivity based on second harmonic (SH) wave pumped difference frequency generation (DFG) using multiple-quasi-phase-matched LiNbO(3) (QPM-LN) waveguides. Flexible waveband conversion is demonstrated over the entire C-band using a tunable DFB-LD array (TLA) as a pump source for a multiple-QPM-LN waveguide. The penalty free waveband conversion of 43 Gb/s return-to-zero differential quadrature phase-shift-keying (RZ-DQPSK) waveband signals is successfully achieved.

摘要