Results 191 to 200 of about 12,496 (247)

Optical characteristics of DBR with inhomogeneous graded interfaces

Wuli Xuebao/Acta Physica Sinica, 2006
Optical properties of Al0.9Ga0.1As/Al gamma Ga1-gamma As/GaAs/Al chi Ga1-chi As DBR with inhomogeneous graded interfaces has been investigated by using characteristic matrix method.
Wang Xiao-Dong
exaly   +1 more source

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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
openaire   +1 more source

High-Power Single-Frequency Thulium-Doped Fiber DBR Laser at 1943 nm

IEEE Photonics Technology Letters, 2011
We report on a high-power single-frequency mode-hop-free fiber distributed Bragg reflector (DBR) laser fabricated from Tm-doped photosensitive alumino-silicate fiber and in-band pumped by an Er/Yb fiber laser at 1565 nm. The fiber DBR laser yielded up to
A J Boyland
exaly   +2 more sources

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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Determination of the structure of HBr DBr

The Journal of Chemical Physics, 1997
We have investigated the structure and dynamics of the weakly bound complex of the four bromine isotopomers of HBr DBr, using pulsed-jet Fourier transform microwave spectroscopy. In addition, the equilibrium geometry, intermolecular energy, and vibrational force constants for the dimer have been calculated at the MP2 level using a large basis set ...
Wei Chen, A. R. Hight Walker, Stewart E. Novick, Fu-Ming Tao   +3 more
openaire   +1 more source

Tunable DBR Laser with Integrated Optical Isolator

Optical Fiber Communication Conference (OFC) 2021, 2021
Integration of a tunable DBR laser with an optical isolator in a polymer platform achieves 38 dB isolation over 17 nm tuning range and 5.6 mW output power. Device size is 2 x 6 mm2.
Hauke Conradi, Tianwen Qian, Martin Kresse, Jakob Reck, David de Felipe, Moritz Kleinert, Madeleine Weigel, Crispin Zawadzki, Norbert Keil, Martin Schell   +9 more
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A DBR-Based Approach for System Management

1999
This work describes the Database Repository (DBR) as specified within the ESPRIT Project “Network Oriented Application Harmonization” (NOAH). The DBR provides a uniform solution to support the control, configuration, management and maintenance of industrial plants.
DEMARTINI, Claudio Giovanni, R. IOSIF, C. RAIBULET, J. P. THOMESSE   +3 more
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Integrated DBR-based Pockels Laser

CLEO 2023, 2023
We demonstrate an integrated DBR-based external cavity laser with linear laser frequency detuning capability based on the Pockels electro-optic effect, with a wide tuning range up to 8 GHz.
Shixin Xue, Mingxiao Li, Lin Chang, Jingwei Ling, Zhengdong Gao, Qili Hu, Kaibo Zhang, Chao Xiang, Heming Wang, John E. Bowers, Qiang Lin   +10 more
openaire   +1 more source