Integrated-optic timing tuner for high-speed WDM signals

Author

Takiguchi, Koichi ; Shibata, Tomohiro ; Itoh, Mikitaka

Author_Institution

NTT Photonics Labs., NTT Corp., Kanagawa, Japan

Volume

15

Issue

7

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

948

Lastpage

950

Abstract

We demonstrate an integrated-optic timing tuner, which is used for the fine adjustment of wavelength-division-multiplexing (WDM) signal delays. This tuner can be utilized to compensate for the bit skew of high-speed WDM bit-parallel links in the next generation or to reduce nonlinear effects in WDM transmissions. The tuner consists of an arrayed-waveguide grating and variable delay lines comprising asymmetrical Mach-Zehnder interferometers with different arm lengths. We demonstrate experimentally that our device is capable of accurate delay tuning for 16 /spl times/ 10 to 40-Gb/s systems.

Keywords

Mach-Zehnder interferometers; arrayed waveguide gratings; integrated optics; optical communication equipment; optical delay lines; optical tuning; wavelength division multiplexing; 10 to 40 Gbit/s; accurate delay tuning; arrayed-waveguide grating; asymmetrical Mach-Zehnder interferometers; bit skew compensation; fine adjustment; high-speed WDM bit-parallel links; high-speed WDM signals; integrated-optic timing tuner; next generation; nonlinear effects; tuner; variable delay lines; wavelength-division-multiplexing signal delays; Arrayed waveguide gratings; Fiber nonlinear optics; High speed optical techniques; Optical filters; Optical interferometry; Optical mixing; Optical signal processing; Timing; Tuners; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.813437

Filename

1206771