Optical pulse evaluation device and in-service optical pulse...

Details Optical pulse evaluation device and in-service optical pulse... Optical pulse evaluation device and in-service optical pulse...

2005-03-31

2008-11-11

Connolly, Patrick (Department: 2877)

Optics: measuring and testing

By light interference

Spectroscopy

C356S073100, C356S450000

Reexamination Certificate

active

07450239

ABSTRACT:
An optical pulse evaluation device and an in-service optical pulse evaluation device is disclosed which are capable of characteristics evaluation of an optical pulse itself or a sample launched therein in a relatively high bit-rate region. The optical pulse evaluation device evaluates a pulse waveform expressing an optical intensity of the optical pulse, an instantaneous frequency of the optical pulse, or a modulated light prepared by modulating the optical pulse in a light source end. The optical pulse evaluation device also observes a waveform change after a known optical pulse is passed through a device such as an optical fiber to evaluate a waveform deterioration or a compensation behavior caused by the device. The in-service optical pulse evaluation device is capable of measuring a wavelength dispersion in an optical communication.

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