A practical method is proposed for complete gain measurement in distributed feedback (DFB) laser diodes. It is non-destructive and does not require any reference device. It includes the whole range of continuous gain values, from its minimum to threshold, passing through the transparency condition. The method requires a single absolute gain measurement for calibration. An example is reported for a DFB preserving Fabry-Perot multi-modes in the sub-threshold regime.

Extended Modal Gain Measurement in DFB Laser Diodes

VANZI, MASSIMO;MARCELLO, GIULIA;MURA, GIOVANNA;
2017-01-01

Abstract

A practical method is proposed for complete gain measurement in distributed feedback (DFB) laser diodes. It is non-destructive and does not require any reference device. It includes the whole range of continuous gain values, from its minimum to threshold, passing through the transparency condition. The method requires a single absolute gain measurement for calibration. An example is reported for a DFB preserving Fabry-Perot multi-modes in the sub-threshold regime.
2017
Laser diodes; laser modes; laser theory; Semiconductor lasers; Electronic, Optical and Magnetic Materials; Atomic and Molecular Physics, and Optics; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/213556
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