Results 21 to 30 of about 3,322,116 (291)
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 +7 more
doaj +1 more source
Influence of Optical Feedback on Frequency Response of GaAs / AlGaAs Quantum Cascade Laser [PDF]
مجلة التربية والعلم, 2010 A theoretical analysis of the optical feedback from external reflector influence on the Frequency response of GaAs/Al0.45Ga0.55As triple quantum well Quantum Cascade Laser emitting at (l=9 mm) is presented.
Ragheed M. Ibrahim, Erada A. Al-Dabbagh
doaj +1 more source
Hysteresis Loop Effect on Intensity for Horizontal and Vertical Polarization by Optical Feedback [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2020 The effect of optical feedback on hysteresis loop (HL) is investigated. Hysteresis loop occurs between two eigenstates of the He-Ne laser (x , y) and it changes by optical feedback at angles from 0° to 180°.
Ehsan Ali Abed +2 more
doaj +1 more source
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 +5 more
openaire +4 more sources
Photonics, 2023 Spin-polarized vertical-cavity surface-emitting lasers (spin-VCSELs) with birefringence-induced polarization oscillations have been proposed to generate desired photonic microwave signals.
Zhenye Shen +5 more
doaj +1 more source
Photonics, 2022 In this paper, the transmission mechanism of the spike information embedded in the low frequency fluctuation (LFF) dynamic in a cascaded laser system is numerically demonstrated.
Xinyu Dou, Shimeng Qiu, Wanqing Wu
doaj +1 more source
Bifurcation analysis of a semiconductor laser with filtered optical feedback [PDF]
, 2006 We study the dynamics and bifurcations of a semiconductor laser with delayed filtered feedback, where a part of the output of the laser re-enters after spectral filtering.
Erzgraeber, H. +9 more
core +1 more source
Optical-Mechanical Configuration of Imaging Operation for Endoscopic Scanner: A Review
IEEE Access, 2021 Miniaturized endoscopic scanners have had a significant impact on high-resolution optical imaging. Technological advancements in micro-electromechanical systems and optical fiber technology have resulted in various optical-mechanical configurations ...
Yang Sing Leong +5 more
doaj +1 more source
External cavity mode structure of a two-mode VCSEL subject to optical feedback [PDF]
, 2007 We consider a multi-transverse-mode vertical-cavity surface-emitting laser (VCSEL) subject to optical feedback. The system is modeled by a partial differential equation for the spatial carrier population, which is coupled to delay differential equations ...
Green, K +5 more
core +1 more source
Nonlinear Dynamics of Two-State Quantum Dot Lasers under Optical Feedback
Photonics, 2021 A modified rate equation model was presented to theoretically investigate the nonlinear dynamics of solitary two-state quantum dot lasers (TSQDLs) under optical feedback. The simulated results showed that, for a TSQDL biased at a relatively high current,
Xiang-Hui Wang +3 more
doaj +1 more source