High-resolution low-frequency fluctuation map of a multimode laser diode subject to filtered optical feedback via a fiber Bragg grating

2016 ◽  
Vol 41 (13) ◽  
pp. 2950 ◽  
Author(s):  
Fadwa Baladi ◽  
Min Won Lee ◽  
Jean-René Burie ◽  
Mauro A. Bettiati ◽  
Azzedine Boudrioua ◽  
...  
Keyword(s):  
High Resolution ◽  
Fiber Bragg Grating ◽  
Laser Diode ◽  
Optical Feedback ◽  
Low Frequency ◽  
Frequency Fluctuation ◽  
Bragg Grating ◽  
Multimode Laser ◽  
Multimode Laser Diode

Demodulation of fiber Bragg grating sensors based on dynamic tuning of a multimode laser diode

1999 ◽  
Vol 38 (22) ◽  
pp. 4751 ◽  
Author(s):  
Luís Alberto Ferreira ◽  
Envangelos Vasilios Diatzikis ◽  
Jose Luis Santos ◽  
Faramarz Farahi
Keyword(s):  
Fiber Bragg Grating ◽  
Laser Diode ◽  
Bragg Grating ◽  
Multimode Laser ◽  
Dynamic Tuning ◽  
Fiber Bragg Grating Sensors ◽  
Multimode Laser Diode

Frequency-modulated multimode laser diode for fiber Bragg grating sensors

1998 ◽  
Vol 16 (9) ◽  
pp. 1620-1630 ◽  
Author(s):  
L.A. Ferreira ◽  
E.V. Diatzikis ◽  
J.L. Santos ◽  
F. Farahi
Keyword(s):  
Fiber Bragg Grating ◽  
Laser Diode ◽  
Bragg Grating ◽  
Multimode Laser ◽  
Fiber Bragg Grating Sensors ◽  
Multimode Laser Diode

High-resolution optical time domain reflectmetry based on a broadband continuous wave multimode laser diode

1996 ◽  
Vol 3 (6) ◽  
pp. A556-A559
Author(s):  
Yishu Wang ◽  
Tadayuki Funaba ◽  
Tsutomu Ichimura ◽  
Naohiro Tan-No
Keyword(s):  
High Resolution ◽  
Laser Diode ◽  
Time Domain ◽  
Continuous Wave ◽  
Multimode Laser ◽  
Optical Time ◽  
Multimode Laser Diode

High-resolution optical time domain reflectmetry based on a broadband continuous wave multimode laser diode

1996 ◽  
Vol 3 (6) ◽  
pp. 556-559
Author(s):  
Yishu Wang ◽  
Tadayuki Funaba ◽  
Tsutomu Ichimura ◽  
Naohiro Tan-No
Keyword(s):  
High Resolution ◽  
Laser Diode ◽  
Time Domain ◽  
Continuous Wave ◽  
Multimode Laser ◽  
Optical Time ◽  
Multimode Laser Diode

Development of the Terahertz Inspection Technology using Multimode Laser Diode

2013 ◽  
Vol 133 (8) ◽  
pp. 430-435 ◽  
Author(s):  
Tohru Takanaka ◽  
Hiroyuki Nishikawa ◽  
Yoshito Sameda ◽  
Keiji Yamamoto
Keyword(s):  
Laser Diode ◽  
Multimode Laser ◽  
Multimode Laser Diode

scholarly journals Development of a Long Period Fiber Grating Interrogation System Using a Multimode Laser Diode

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 749
Author(s):  
Luís Henrique Silva ◽  
Paulo Santos ◽  
Luís C. C. Coelho ◽  
Pedro Jorge ◽  
José Manuel Baptista
Keyword(s):  
Laser Diode ◽  
Measurement Errors ◽  
Laser Scanning ◽  
Fiber Grating ◽  
Light Sources ◽  
Fiber Gratings ◽  
Multimode Laser ◽  
Central Wavelength ◽  
Long Period ◽  
Multimode Laser Diode

Optical fiber gratings have long shown their sensing capabilities. One of the main challenges, however, is the interrogation method applied, since typical systems tend to use broadband light sources with optical spectrum analyzers, laser scanning units or CCD (Charged Coupled Device) spectrometers. The following paper presents the development of an interrogation system, which explores the temperature response of a multimode laser diode, in order to interrogate long period fiber gratings. By performing a spectral sweep along one of its rejection bands, a discrete attenuation spectrum is created. Through a curve fitting technique, the original spectrum is restored. The built unit, while presenting a substantially reduced cost compared with typical interrogation systems, is capable of interrogating along a 10 nm window with measurement errors reaching minimum values as low as 0.4 nm, regarding the grating central wavelength, and 0.4 dB for its attenuation. Given its low cost and reduced dimensions, the developed system shows potential for slow-changing field applications.

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