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Multicore fiber distributed feedback lasers
Optics Letters, 2012We demonstrate parallel fabrication of seven fiber distributed feedback (DFB) lasers in a hexagonally arrayed multicore core Er doped fiber with 40 μm core spacing. DFB grating cavities 8 cm long and operating near 1545 nm were fabricated with a single UV inscription exposure.
P S, Westbrook +6 more
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Distributed feedback laser for biosensing applications
2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014We present an organic semiconductor distributed feedback laser biosensor and demonstrate its sensing capabilities. Optimization of the gain layer thickness to maximize the response to refractive index changes and bulk sensing results are shown. Desthiobiotin-avidin sensing assay results are also presented and the potential to perform multiple, repeated
Anne-Marie Haughey +4 more
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Cross-distribution Feedback in Software Ecosystems
Proceedings of the IEEE/ACM 42nd International Conference on Software Engineering Workshops, 2020Despite the proliferation of software ecosystems (SECOs), growing a sustainable and healthy SECO remains a significant challenge. One approach to mitigate this challenge is the utilization of a mechanism that collects feedback from distributors (distros) and end-users of the SECO releases.
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Feedback control in a distributed scheduling architecture
Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137), 2002Multiple-module, multistage packet switching systems are gaining popularity as a scalable solution to the ever increasing demand for the aggregate switching capacity. Due to additional contention points between the stages, such systems differ in their behavior from single module output buffered switches, which serve as a model for most of the advanced ...
Fabio M. Chiussi +3 more
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2013 IEEE XXXIII International Scientific Conference Electronics and Nanotechnology (ELNANO), 2013
A new technique for circuit feedback analysis is presented. A formula for the return ratio is derived using a strict definition of feedback. The technique may be applied in both laboratory-based and computer-aided analysis of feedback in electronic circuits and other dynamic systems.
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A new technique for circuit feedback analysis is presented. A formula for the return ratio is derived using a strict definition of feedback. The technique may be applied in both laboratory-based and computer-aided analysis of feedback in electronic circuits and other dynamic systems.
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Distributed feedback systems for muscle control
Brain Research, 1974Abstract Responses of single neurones in motor cortex to passive stretches of the contralateral extensor digitorum communis muscle were studied in regionally anaesthetized, paralyzed cats. Parameters of stimulation could be adjusted to activate either only group Ia afferents, or a combination of group Ia, group II and group Ib afferents from muscle ...
J T, Murphy, Y C, Wong, H C, Kwan
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1982
All of the lasers that have been described so far depend on optical feedback from a pair of reflecting surfaces, which form a Fabry-Perot etalon. In an optical integrated circuit, in which the laser diodes are monolithically integrated within the semiconductor wafer, it is usually very difficult to form such reflecting surfaces.
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All of the lasers that have been described so far depend on optical feedback from a pair of reflecting surfaces, which form a Fabry-Perot etalon. In an optical integrated circuit, in which the laser diodes are monolithically integrated within the semiconductor wafer, it is usually very difficult to form such reflecting surfaces.
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Multiply resonant distributed-feedback lasers
IEEE Journal of Quantum Electronics, 1976In this paper, we propose, analyze, and experimentally demonstrate a new type of distributed feedback laser, the multiply-resonant distributed feed-back (MRDFB) laser. For active media having broad, partially- or fully-inhomogeneous gain lines, the MRDFB laser allows colinear lasing to occur simultaneously at several preselected wavelengths.
H. M. Stoll, D. H. Seib
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Distributed feedback fiber Raman laser
IEEE Journal of Quantum Electronics, 2001We analyze the properties of a distributed feedback fiber laser based on Raman amplification. Such a laser is quite practical and has a number of novel properties. We model numerically the laser dynamics, analyze in detail the role of the nonlinear refractive index of the fiber and argue on the optimal design parameters.
H.G. Winful, V. Perlin
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2013
Good quality long distance optical transmission over fiber needs lasers which emit at a single wavelength. This is almost universally realized by putting a wavelength-dependent reflector into the laser cavity, in a distributed feedback laser. In this chapter, the physics, properties, fabrication, and yields of distributed feedback lasers are described.
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Good quality long distance optical transmission over fiber needs lasers which emit at a single wavelength. This is almost universally realized by putting a wavelength-dependent reflector into the laser cavity, in a distributed feedback laser. In this chapter, the physics, properties, fabrication, and yields of distributed feedback lasers are described.
openaire +1 more source