An all-optical wavelength converter is one of the key devices for realizing future high-speed and flexible wavelength-division multiplexed (WDM) networks. Recently, grouping WDM channels in the routing process have been proposed in order to construct simpler optical cross connects (OXCs) that can handle a large number of WDM channels.1,2 1.55-µm-band quasi-phase-matched (QPM) wavelength converters based on difference frequency generation (DFG) in periodically poled LiNbO3 (LN) are promising because of their novel features, such as multi-channel conversion, high-efficiency, low noise, and transparency to bit-rate and data format.3 However, conventional one-step wavelength conversion using QPM-LN is not usable when input and destination channels overlap in wavelength. In addition, wavelength converters are desired to keep the order of the channels so as to simplify the algorithm of the grouped wavelength routing system. So, wavelength converters that give uniform frequency shift are demanded. In this paper, we propose an optical frequency shifter (OFS) using two QPM-LN wavelength converters that satisfy these requirements. We also demonstrate broad-band multi-channel shifting by utilizing the proposed OFS.

© 2002 Optical Society of America

PDF Article
More Like This
Variable Optical Frequency Shifter Using Multiple Quasi-Phase-Matched LiNbO3 Wavelength Converters

O. Tadanaga, M. Asobe, H. Miyazawa, Y. Nishida, and H. Suzuki
FP3 Optical Fiber Communication Conference (OFC) 2003

All Optical Variable-In Variable-Out Wavelength Converters Based on MgO Doped LiNbO3 Quasi-phase Matched Waveguides

Bo Chen, Chang-Qing Xu, Bing Zhou, Yasukazu Nihei, and Akinori Harada
ThDD2 Optical Fiber Communication Conference (OFC) 2002

Wavelength conversion and multi-carrier generation using Quasi-Phase-Matched LiNbO3 waveguides operating on optical frequency grid

Etsushi Yamazaki, Atsushi Takada, Jun Yamawaku, Toshio Morioka, Hiroshi Miyazawa, Osamu Tadanaga, and Masaki Asobe
CFN2 Conference on Lasers and Electro-Optics (CLEO) 2004


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription