Article | REF: R1178 V2

Measurements on optoelectronic emission components

Authors: Irène JOINDOT, Naveena GENAY, Philippe CHANCLOU

Publication date: December 10, 2007

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3. Optical measurements

3.1 Transmitter power

For most applications, such as the optimum injection of light into an optical fiber, three parameters are important: the power (or energy flux) emitted, the dimensions of the light spot on the emitting face (also known as the "near field") and the angular emission pattern (also known as the "far field").

The "far field" is the Fourier transform of the "near field".

  • Consequently, in the case of edge emitters, the small thickness of the active layer, and therefore of the emissive zone (2w on figure

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