Oxygen sensing using single frequency GaAs-AlGaAs DFB laser diodes and VCSELs

1996 ◽  
Vol 32 (3) ◽  
pp. 219 ◽  
Author(s):  
V. Weldon ◽  
J. O'Gorman ◽  
J.J. Pérez-Camacho ◽  
J. Hegarty
Keyword(s):  
Oxygen Sensing ◽  
Laser Diodes ◽  
Single Frequency ◽  
Dfb Laser

Oxygen sensing using single-frequency DFB laser diodes at λ = 761 nm

1997 ◽  
Vol 42 (3) ◽  
pp. 163-168 ◽  
Author(s):  
V. Weldon ◽  
J. O'Gorman ◽  
J.J. Pérez-Camacho ◽  
J. Hegarty ◽  
J.C. Connolly ◽  
...  
Keyword(s):  
Oxygen Sensing ◽  
Laser Diodes ◽  
Single Frequency ◽  
Dfb Laser

Laser diode based oxygen sensing: A comparison of VCSEL and DFB laser diodes emitting in the 762 nm region

1997 ◽  
Vol 38 (6) ◽  
pp. 325-329 ◽  
Author(s):  
V. Weldon ◽  
J. O'Gorman ◽  
J.J. Pérez-Camacho ◽  
D. McDonald ◽  
J. Hegarty ◽  
...  
Keyword(s):  
Laser Diode ◽  
Oxygen Sensing ◽  
Laser Diodes ◽  
Dfb Laser

scholarly journals Electrically injected parity-time symmetric distributed feedback laser diodes (DFB) for telecom applications

Nanophotonics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 1309-1317
Author(s):  
Vincent Brac de la Perrière ◽  
Quentin Gaimard ◽  
Henri Benisty ◽  
Abderrahim Ramdane ◽  
Anatole Lupu
Keyword(s):  
Optical Transmission ◽  
Light Propagation ◽  
Optical Feedback ◽  
Laser Diodes ◽  
Distributed Feedback ◽  
Single Frequency ◽  
Distributed Feedback Laser ◽  
New Paradigm ◽  
Time Symmetry ◽  
Dfb Laser

Abstract The new paradigm of parity-time symmetry in quantum mechanics has readily been applied in the field of optics with numerous demonstrations of exotic properties in photonic systems. In this work, we report on the implementation of single frequency electrically injected distributed feedback (DFB) laser diodes based on parity-time symmetric dual gratings in a standard ridge waveguide configuration. We demonstrate enhanced modal discrimination for these devices as compared with index or gain coupled ones, fabricated in the same technology run. Optical transmission probing experiments further show asymmetric amplification in the light propagation confirming the parity-time symmetry signature of unidirectional light behavior. Another asset of these complex coupled devices is further highlighted in terms of robustness to optical feedback.

120<tex>$^circhboxC$</tex>10-Gb/s Uncooled Direct Modulated 1.3-<tex>$muhboxm$</tex>AlGaInAs MQW DFB Laser Diodes

2004 ◽  
Vol 16 (11) ◽  
pp. 2415-2417 ◽  
Author(s):  
K. Takagi ◽  
S. Shirai ◽  
Y. Tatsuoka ◽  
C. Watatani ◽  
T. Ota ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Dfb Laser

Study of distortions in CATV DFB laser diodes

1996 ◽  
Author(s):  
Jean-Christophe Froidure ◽  
Christophe Lebrun ◽  
Patrice Megret ◽  
V. Moeyaert ◽  
P. Goerg ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Dfb Laser

scholarly journals Dual-mode DFB laser diodes with apodized surface gratings

2018 ◽  
Vol 26 (13) ◽  
pp. 16303 ◽  
Author(s):  
Topi Uusitalo ◽  
Heikki Virtanen ◽  
Jukka Viheriälä ◽  
Mihail Dumitrescu
Keyword(s):  
Laser Diodes ◽  
Dual Mode ◽  
Dfb Laser

H2S and CO2 gas sensing using DFB laser diodes emitting at 1.57 μm

1995 ◽  
Vol 29 (1-3) ◽  
pp. 101-107 ◽  
Author(s):  
V. Weldon ◽  
J. O'Gorman ◽  
P. Phelan ◽  
J. Hegarty ◽  
T. Tanbun-Ek
Keyword(s):  
Gas Sensing ◽  
Laser Diodes ◽  
Co2 Gas ◽  
Dfb Laser
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