Method and apparatus for measuring the wavelength of spectrally

Details Method and apparatus for measuring the wavelength of spectrally Method and apparatus for measuring the wavelength of spectrally

1991-09-04

1994-06-07

Rosenberger, Richard A.

Optics: measuring and testing

Material strain analysis

25022718, G01B 1116

Patent

active

053194357

ABSTRACT:
A method and apparatus for measuring the wavelength of spectrally narrow optical signals, particularly from guidedwave structures, is taught, which utilizes a known wavelength dependent transfer function and determining from the resulting signal the wavelength. In a preferred embodiment the spectrally narrow optical signal is divided into at least two signals, followed by optically processing the signals to produce a wavelength dependent change between the signals and determining the wavelength therefrom.

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patent: 4761073 (1988-08-01), Meltz et al.
patent: 4955028 (1990-09-01), Alferness et al.
patent: 4983035 (1991-01-01), Wright et al.

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