Results 11 to 20 of about 3,322,116 (291)
Laser Optical Feedback Turns 60. [PDF]
Sensors (Basel), 2023 As soon as a laser is fired, some of the emitted light is scattered backward and coupled with the cavity modes, causing instability [...]
Dabbicco M, Columbo LL, Perchoux J.
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Dual-Frequency Doppler LiDAR Based on External Optical Feedback Effect in a Laser [PDF]
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 +6 more
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Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status [PDF]
Sensors, 2022 In this study, a novel distance sensing method is presented by using a semiconductor laser (SL) with optical feedback (OF) and operating the SL at a switching status happened between two nonlinear dynamic states (stable state and period-one state).
Bairun Nie +7 more
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Application of Near-Infrared Optical Feedback Cavity Enhanced Absorption Spectroscopy (OF-CEAS) to the Detection of Ammonia in Exhaled Human Breath [PDF]
Sensors, 2019 The qualitative and quantitative analysis to trace gas in exhaled human breath has become a promising technique in biomedical applications such as disease diagnosis and health status monitoring.
Zhifu Luo, Zhongqi Tan, Xingwu Long
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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 +3 more
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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 +3 more
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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 +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 +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 +11 more
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Dissipative solitons in pattern-forming nonlinear optical systems : cavity solitons and feedback solitons [PDF]
, 2005 Many dissipative optical systems support patterns. Dissipative solitons are generally found where a pattern coexists with a stable unpatterned state. We consider such phenomena in driven optical cavities containing a nonlinear medium (cavity solitons ...
Firth, William, Ackemann, Thorsten
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