Results 1 to 10 of about 1,874 (97)

Modulation Characteristics of Period-One Oscillations in Quantum Cascade Lasers

Applied Sciences, 2021
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 ...
Binbin Zhao, Yibo Peng, Xingguang Wang, Cheng Wang   +3 more
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Nonlinear Dynamics of a Single-Mode Semiconductor Laser with Long Delayed Optical Feedback: A Modern Experimental Characterization Approach

Photonics, 2022
Semiconductor lasers can exhibit complex dynamical behavior in the presence of external perturbations. Delayed optical feedback, re-injecting part of the emitted light back into the laser cavity, in particular, can destabilize the laser’s emission.
Xavier Porte, Daniel Brunner, Ingo Fischer, Miguel C. Soriano   +3 more
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Nonlinear Dynamics of Mid-Infrared Interband Cascade Lasers Subject to Variable-Aperture Optical Feedback

Photonics, 2022
In this work, we experimentally investigate the nonlinear dynamics of an interband cascade laser (ICL) under variable-aperture optical feedback implemented by a gold mirror combining with a ring-actuated iris diaphragm (RAID). By continuously varying the
Maorong Zhao, Guangqiong Xia, Ke Yang, Shuman Liu, Junqi Liu, Qiupin Wang, Jianglong Liu, Zhengmao Wu   +7 more
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Band-Rejection Feedback for Chaotic Time-Delay Signature Suppression in a Semiconductor Laser

IEEE Photonics Journal, 2022
Chaos generation from a semiconductor laser under band-rejection optical feedback is proposed and investigated numerically and experimentally. The band-rejection feedback performs better than the conventional broadband mirror feedback in concealing the ...
Song-Sui Li, Xihua Zou, Liyue Zhang, Lin Jiang, Longsheng Wang, Anbang Wang, Wei Pan, Lianshan Yan   +7 more
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Optical Feedback Linear Cavity Ringdown Spectroscopy

Frontiers in Physics, 2022
Optical feedback cavity ringdown spectroscopy is presented with a linear Fabry–Pérot cavity and a cost-effective DFB laser. To circumvent the low coupling efficiency caused by the broad laser linewidth, an optical feedback technique is used, and an ...
Xingping Wang, Xingping Wang, Gang Zhao, Gang Zhao, Kang Jiao, Kang Jiao, Bing Chen, Ruifeng Kan, Zhenhua Cong, Jianguo Liu, Weiguang Ma, Weiguang Ma   +11 more
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Acousto-optic laser optical feedback imaging [PDF]

Optics Letters, 2012
We present a photon noise and diffraction limited imaging method combining the imaging laser and ultrasonic waves. The laser optical feedback imaging (LOFI) technique is an ultrasensitive imaging method for imaging objects through or embedded within a scattering medium.
Jacquin, Olivier, Glastre, Wilfried, Lacot, Eric, Hugon, Olivier, Guillet de Chatellus, Hugues, François, Ramaz   +5 more
openaire   +4 more sources

Dual-Frequency Doppler LiDAR Based on External Optical Feedback Effect in a Laser

Sensors, 2020
A novel Dual-frequency Doppler LiDAR (DFDL) is presented where the dual-frequency light source is generated by using external optical feedback (EOF) effect in a laser diode (LD). By operating a LD at period-one (P1) state and choosing suitable LD related
Zhuqiu Chen, Yanguang Yu, Yuxi Ruan, Bairun Nie, Jiangtao Xi, Qinghua Guo, Jun Tong   +6 more
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Laser Optical Feedback Turns 60

Sensors, 2023
As soon as a laser is fired, some of the emitted light is scattered backward and coupled with the cavity modes, causing instability [...]
Maurizio Dabbicco, Lorenzo Luigi Columbo, Julien Perchoux   +2 more
openaire   +4 more sources

1.3 μm p-Modulation Doped InGaAs/GaAs Quantum Dot Lasers with High Speed Direct Modulation Rate and Strong Optical Feedback Resistance

Crystals, 2020
Aiming to realize high-speed optical transmitters for isolator-free telecommunication systems, 1.3 μm p-modulation doped InGaAs/GaAs quantum dot (QD) lasers with a 400 μm long cavity have been reported. Compared with the un-doped QD laser as a reference,
Xia-Yida MaXueer, Yi-Ming He, Zun-Ren Lv, Zhong-Kai Zhang, Hong-Yu Chai, Dan Lu, Xiao-Guang Yang, Tao Yang   +7 more
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Comparison of plane mirror vs retroreflector performance for laser-self-mixing displacement sensors [PDF]

Journal of the European Optical Society-Rapid Publications, 2009
The behavior of a displacement optical sensor based on the Laser-Self-Mixing effect employing a plane mirror (PT) and a solid corner-cube (CC) as moving target is analyzed.
Ottonelli S., De Lucia F., di Vietro M., Dabbicco M., Scamarcio G.   +4 more
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