Results 151 to 160 of about 5,232 (217)

The DBR Multipoint Pressure Recorder

, 1962
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Bond strength of maxillofacial silicone to various three-dimensional printing resins compared to conventional substructures. [PDF]

BMC Oral Health
Özcan B, Özcivelek T.
europepmc   +1 more source

Assessment of root and root canal morphology in maxillary molars with fused roots using Cone Beam Computer Tomography (CBCT) in a Sri Lankan population. [PDF]

J Oral Biol Craniofac Res
Rajapaksa RDW, Fonseka MCN, Jayasinghe RD, Jayasinghe RM.   +3 more
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Energy efficient traffic data aggregation and routing for metropolitan optical access network. [PDF]

Sci Rep
Kumar TS, V M, Senthilkumar S.
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Design and performance analysis of all-dielectric reflective, metalens for LWIR applications. [PDF]

Sci Rep
Mukhtar S, Viegas J.
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Nonlinear Effects Analysis in DBR Lasers: Applications to DBR-SOA and New Double Bragg DBR

IEEE Journal of Selected Topics in Quantum Electronics, 2007
This paper presents a theoretical and experimental study of nonlinear effects in distributed Bragg reflector (DBR)-type tunable lasers, which are responsible for asymmetric spectral or power characteristics, and for hysteresis phenomena. We propose an optimized DBR semiconductor optical amplifier design that suppresses these effects, making the control
Helene Debregeas-Sillard, Catherine Fortin, Alain Accard, Olivier Drisse, Estelle Derouin, Frederic Pommereau, Christophe Kazmierski   +6 more
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The COMBO DBR: Comb-Optimized DBR Laser for Versatile Design

2018 IEEE International Semiconductor Laser Conference (ISLC), 2018
In this paper we describe a novel design of DBR laser that utilizes sampled gratings to optimize mirror loss and mirror bandwidth independently. This versatile design approach has enabled a wide variety of lasers, from compact low power consumption to high power and MOPA designs.
G.B. Morrison, J. Sherman, I. Gonzalez, K. Ottoson, J. Campbell, S. Estrella, R. Moreira, P. Leisher, D. Renner, L. Johansson, M. Mashanovitch   +10 more
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Miniature DBR with series capacitive loading

2010 10th Mediterranean Microwave Symposium, 2010
AbstractA new miniature dual behavior resonator (DBR) topology with capacitors placed in series between the feed lines and the stubs is demonstrated. Design equations are derived. For a proof‐of‐concept, a first‐order prototype with a 1‐GHz working frequency and 70% size reduction is realized, measured, and compared with a classical DBR.
Issa, H., Duchamp, J.-M., Abou-Chahine, S., Ferrari, P.   +3 more
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Competition Noise in DBR Tunable Lasers

Fluctuation and Noise Letters, 2003
Tunable Lasers are key-components for Wavelength Division Multiplexing optical communication applications at 1.55μ m . In this paper, we report the study of low to mid frequency noise power spectral densities and correlation factors in various spectral purity configurations, using the Bragg section tunability around a mode-hopping situation.
Myara, M., Signoret, P., Tourrenc, J.P., Perez, J.-P., Orsal, B., Alabédra, R., Jacquet, J.   +6 more
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Wavelength and mode stabilization of widely tunable SG-DBR and SSG-DBR lasers

IEEE Photonics Technology Letters, 1999
A novel mode stabilization scheme for widely tunable SG-DBR and SSG-DBR lasers is demonstrated. It is shown that a minimum in active section voltage is obtained when a cavity mode and a reflection peak of each DBR mirror are aligned. Locking the laser to such a local minimum in active section voltage therefore ensures stable single-mode operation.
G. Sarlet, G. Morthier, R. Baets
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