WDM and TDM interrogation by sequentially pulsing direct modulated DFBs

A. Perez-Gonzalez,M. Bravo,D. Leandro,Rosa Ana Perez-Herrera,Manuel López Amo

WDM and TDM interrogation by sequentially pulsing direct modulated DFBs

2021

A. Perez-Gonzalez
M. Bravo
D. Leandro
Rosa Ana Perez-Herrera
Manuel López Amo

A new versatile and cost-effective interrogation system by pulsing direct modulated (DM) DFB laser diodes is proposed. 1 pm wavelength resolution and 600 m sensor spacing is demonstrated by sequentially pulsing a DM DFB.

Keywords:

Optoelectronics
Fiber optic sensor
Interrogation
Distributed feedback laser
Diode
Resolution (electron density)
Wavelength-division multiplexing
Wavelength
Materials science

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