Chromatic dispersion generating apparatus

Optical communications – Transmitter and receiver system – Including optical waveguide

Reexamination Certificate

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Details

C398S188000, C398S192000

Reexamination Certificate

active

11094743

ABSTRACT:
A chromatic dispersion generating apparatus of the present invention comprises a VIPA plate capable of emitting an incident light to different directions according to wavelengths, a three-dimensional mirror reflecting the light of respective wavelengths emitted from the VIPA plate at a previously set position to return them to the VIPA plate, and a control section that controls a position of the three-dimensional mirror and the temperature of the VIPA plate. The control section computes a target position of the three-dimensional mirror and the target temperature of the VIPA plate, which correspond to an arbitrary wavelength and a chromatic dispersion value, based on data relating to positions of the three-dimensional mirror corresponding to a plurality of chromatic dispersion values of a specific wavelength and a chromatic dispersion slope value, and data relating to the temperatures of the VIPA plate corresponding to a plurality of dispersion values for respective wavelengths on a predetermined wavelength grid and a wavelength temperature coefficient, which are stored in a storage circuit, to optimize the computed target position and the computed target temperature. As a result, it becomes possible to generate the chromatic dispersion with high accuracy at an arbitrary wavelength.

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patent: 2003/0185504 (2003-10-01), Yamauchi et al.
patent: 2004/0027690 (2004-02-01), Takahashi
patent: 9-43057 (1997-02-01), None
patent: 2000-511655 (2000-09-01), None

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