Results 1 to 10 of about 3,322,116 (291)
Photonics, 2022 We report feedback-induced frequency oscillations using a power-split-ratio through asymmetric dual-loop optical feedback (Loop I: ~2.2 km and Loop II: ~20 m) subject to a self-mode-locked two-section QDash laser emitting at 1550 nm and operating at 21 ...
Tahani A. Alrebdi +2 more
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Intensity noise in ultra-high frequency modulated semiconductor laser with strong feedback and its influence on noise figure of RoF links [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 We characterize the intensity noise associated with the ultra-high frequency direct modulation of semiconductor lasers under strong optical feedback over a millimeter-wave frequency passband between 54.5 and 56.5 GHz.
Ahmed M. +4 more
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Photonics, 2023 Fiber fault detection is crucial for maintaining the quality of optical communication, especially in well-established optical access networks with extended distances and a growing number of subscribers.
Xiuzhu Li +6 more
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IEEE Photonics Journal, 2018 An InP-based, monolithically integrated multiwavelength laser with optical feedback is presented. We demonstrate the performance of the dual-wavelength operation. Single-mode lasing is obtained for each of the two channels within a temperature range from
Dan Zhao +5 more
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Semiconductor laser with filtered optical feedback: from optical injection to conventional feedback
IMA Journal of Applied Mathematics, 2007 AbstractWe study a model for a semiconductor laser subject to filtered optical feedback,that is a system of delay differential equations (DDEs). In this model the filter is characterisedby a mean frequency Ωm and a filter width λ. In the limit of a narrow filter(λ → 0) the laser equations reduce to the equations for a laser with optical injection ...
Hek, G., Rottschäfer, V.
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Optical Feedback Radiation Forces: Intracavity Optical Trapping with Feedback-locked Diode Lasers [PDF]
Frontiers in Optics 2012/Laser Science XXVIII, 2012 We demonstrate a novel mechanism for optical tweezing, where a trapped particle dynamically alters an external cavity quality factor, reduceing the average intensity and photodamage, even employing low-numerical aperture lenses and wide fields-of-view.
Y Tuna +5 more
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Optical Feedback Sensitivity of a Semiconductor Ring Laser with Tunable Directionality
Photonics, 2019 We discuss the sensitivity to optical feedback of a semiconductor ring laser that is made to emit in a single-longitudinal mode by applying on-chip filtered optical feedback in one of the directional modes. The device is fabricated on a generic photonics
Guy Verschaffelt +2 more
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Self-aligned setup for laser optical feedback imaging insensitive to parasitic optical feedback [PDF]
Applied Optics, 2008 In this paper we propose a new optical architecture for the laser optical feedback imaging (LOFI) technique which makes it possible to avoid the adverse effect of the optical parasitic backscattering introduced by all the optical interfaces located between the laser source and the studied object.
Jacquin, Olivier +3 more
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Precise Photon Correlation Measurement of a Chaotic Laser
Applied Sciences, 2019 The second order photon correlation g(2)(τ) of a chaotic optical-feedback semiconductor laser is precisely measured using a Hanbury Brown−Twiss interferometer.
Xiaomin Guo +4 more
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IEEE Photonics Journal, 2023 In this article, we propose and numerically demonstrate a novel dual-phase modulated time-delay signature (TDS) concealed communication system. The proposed system addresses the fatal disadvantage of conventional electro-optic chaotic systems in that TDS
Wenfu Gu +6 more
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