Results 41 to 50 of about 1,589,013 (282)
Accumulation of Distributed Phase Shift in Distributed-Feedback Resonators
IEEE Photonics Journal, 2019 Distributed-feedback waveguide lasers based on Bragg-grating resonators generate ultranarrow-linewidth emission. Oscillation at the center of the reflection band ensures maximum reflectivity, hence minimum linewidth. The required $\pi / 2$ phase shift is
Cristine Calil Kores +4 more
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MAPbBr3 First‐Order Distributed Feedback Laser with High Stability
Advanced Photonics Research, 2023 A green‐emitting perovskite first‐order distributed feedback (DFB) laser based on the methylammonium lead bromide (MAPbBr3) with high stability is demonstrated for the first time.
Cheng Chang +3 more
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Random distributed feedback fibre lasers
Physics Reports, 2014 The concept of random lasers making use of multiple scattering in amplifying disordered media to generate coherent light has attracted a great deal of attention in recent years. Here, we demonstrate a fibre laser with a mirrorless open cavity that operates via Rayleigh scattering, amplified through the Raman effect.
Sergei K. Turitsyn +5 more
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Delayed Feedback Control near Hopf Bifurcation
, 2007 The stability of functional differential equations under delayed feedback is investigated near a Hopf bifurcation. Necessary and sufficient conditions are derived for the stability of the equilibrium solution using averaging theory.
Atay, F.M. +2 more
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Plasmonic near field transducer of nanocomposite with distributed feedback
AIP Advances, 2023 In this paper, we present a novel near field transducer (NFT) design concept for heat assisted recording. In this design, metal bars separated by thin dielectric are used to form a resonance plasmonic grating with distributed feedback (DFB).
Tianxiang Du +4 more
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Dispersive-grating distributed feedback lasers
Optics Express, 2008 This paper proposed a novel distributed feedback (DFB) laser by incorporating a dispersive grating, whose coupling strength is dependent on the operating wavelength. Analysis of the laser threshold conditions shows that the proposed structure guarantees single-mode operation due to the inherent threshold gain discrimination on the two otherwise ...
Yanping, Xi +3 more
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, 1996 We report on an experimental technique for investigating the intensity profile in distributed feedback fibre lasers. By scanning along the laser length and monitoring the side green fluorescence, the intensity distribution in the laser can be inferred ...
de Sandro, J.P., Loh, W.H., Samson, B.N.
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A GaAs-based self-aligned stripe distributed feedback laser [PDF]
, 2016 We demonstrate operation of a GaAs-based self-aligned stripe (SAS) distributed feedback (DFB) laser. In this structure, a first order GaInP/GaAs index-coupled DFB grating is built within the p-doped AlGaAs layer between the active region and the n-doped ...
Babazadeh, N. +7 more
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Second-harmonic generation within a random fiber laser
High Power Laser Science and EngineeringOptical fibers offer convenient access to a variety of nonlinear phenomena. However, due to their inversion symmetry, second-order nonlinear effects, such as second-harmonic generation (SHG), are challenging to achieve.
Yousi Yang +8 more
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Fiber distributed feedback laser [PDF]
, 1976 Utilizing round optical fibers as communication channels in optical communication networks presents the problem of obtaining a high efficiency coupling between the optical fiber and the laser. A laser is made an integral part of the optical fiber channel
Elachi, C., Evans, G. A., Yeh, C.
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