Imaging of free carriers in semiconductors via optical feedback in terahertz quantum cascade lasers

2014 ◽  
Vol 104 (4) ◽  
pp. 041112 ◽  
Author(s):  
F. P. Mezzapesa ◽  
L. L. Columbo ◽  
M. Brambilla ◽  
M. Dabbicco ◽  
M. S. Vitiello ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Optical Feedback ◽  
Quantum Cascade ◽  
Free Carriers ◽  
Cascade Lasers

scholarly journals Erratum: “Imaging of free carriers in semiconductors via optical feedback in terahertz quantum cascade lasers” [Appl. Phys. Lett. 104, 041112 (2014)]

2015 ◽  
Vol 106 (2) ◽  
pp. 029903
Author(s):  
F. P. Mezzapesa ◽  
L. L. Columbo ◽  
M. Brambilla ◽  
M. Dabbicco ◽  
M. S. Vitiello ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Optical Feedback ◽  
Quantum Cascade ◽  
Free Carriers ◽  
Cascade Lasers

scholarly journals Estimating optical feedback from a chalcogenide fiber in mid-infrared quantum cascade lasers

AIP Advances ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 105201 ◽  
Author(s):  
L. Jumpertz ◽  
C. Caillaud ◽  
C. Gilles ◽  
S. Ferré ◽  
K. Schires ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Optical Feedback ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals Modulation Characteristics of Period-One Oscillations in Quantum Cascade Lasers

2021 ◽  
Vol 11 (24) ◽  
pp. 11730
Author(s):  
Binbin Zhao ◽  
Yibo Peng ◽  
Xingguang Wang ◽  
Cheng Wang
Keyword(s):  
Quantum Cascade Lasers ◽  
Optical Feedback ◽  
Coupling Effect ◽  
Modulation Depth ◽  
Low Frequency ◽  
Optical Signal ◽  
Electrical Signal ◽  
Periodic Oscillations ◽  
Quantum Cascade ◽  
Cascade Lasers

Quantum cascade lasers subject to tilted optical feedback produce periodic oscillations, quasi-periodic oscillations, and low-frequency oscillations. This work presents the modulation characteristics of period-one (P1) oscillations in a quantum cascade laser with tilted optical feedback. The electrical signal at the oscillation frequency is more than 50 dB higher than the noise level, and the electrical linewidth is less than 2.0 kHz. This electrical linewidth is about four orders of magnitude narrower than the optical linewidth (around 16 MHz) of the free-running laser, which suggests that the optical sidebands induced by the P1 oscillations are highly coherent with the main optical mode. In addition, the modulation depth of the optical signal is found to be in the range of 1% to 3.5%. In addition, it is verified in the simulations that the P1 oscillations induce not only amplitude modulation but also frequency modulation due to the phase-amplitude coupling effect.

Beam steering in quantum cascade lasers with optical feedback

2017 ◽  
Author(s):  
Louise Jumpertz ◽  
Simon Ferré ◽  
Mathieu Carras ◽  
Frédéric Grillot
Keyword(s):  
Quantum Cascade Lasers ◽  
Optical Feedback ◽  
Beam Steering ◽  
Quantum Cascade ◽  
Cascade Lasers

THz imaging of free carrier density based on quantum cascade lasers under optical feedback

CLEO: 2014 ◽  
2014 ◽  
Author(s):  
francesco P. mezzapesa ◽  
Lorenzo L. Columbo ◽  
Massimo Brambilla ◽  
Maurizio Dabbicco ◽  
Harvey E. Beere ◽  
...  
Keyword(s):  
Carrier Density ◽  
Quantum Cascade Lasers ◽  
Optical Feedback ◽  
Free Carrier ◽  
Thz Imaging ◽  
Quantum Cascade ◽  
Free Carrier Density ◽  
Cascade Lasers

Nonlinear dynamics of quantum cascade lasers with optical feedback

2015 ◽  
Author(s):  
L. Jumpertz ◽  
S. Ferré ◽  
K. Schires ◽  
M. Carras ◽  
F. Grillot
Keyword(s):  
Nonlinear Dynamics ◽  
Quantum Cascade Lasers ◽  
Optical Feedback ◽  
Quantum Cascade ◽  
Cascade Lasers
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