scholarly journals Factors influencing brightness and beam quality of conventional and distributed Bragg reflector tapered laser diodes in absence of self-heating

2014 ◽  
Vol 8 (2) ◽  
pp. 99-107 ◽  
Author(s):  
Simeon Newton Kaunga-Nyirenda ◽  
Jun Jun Lim ◽  
Eric C. Larkins ◽  
Karl-Heinz Hasler ◽  
Stephen Bull ◽  
...  
Keyword(s):  
Beam Quality ◽  
Laser Diodes ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Self Heating ◽  
Factors Influencing ◽  
Tapered Laser

Improving the beam quality of high-power laser diodes by introducing lateral periodicity into waveguides

2013 ◽  
Author(s):  
Grzegorz Sobczak ◽  
Elżbieta Dąbrowska ◽  
Marian Teodorczyk ◽  
Joanna Kalbarczyk ◽  
Andrzej Maląg
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser Diodes ◽  
High Power Laser ◽  
Power Laser

scholarly journals Исследование фотоотклика графена, полученного методом химического осаждения из газовой фазы

2020 ◽  
Vol 54 (9) ◽  
pp. 833
Author(s):  
А.В. Бабичев ◽  
С.А. Кадинская ◽  
K.Ю. Шубина ◽  
А.А. Васильев ◽  
А.А. Блохин ◽  
...  
Keyword(s):  
Graphene Layer ◽  
Optical Pumping ◽  
Chemical Vapor ◽  
Resonance Wavelength ◽  
Bragg Reflector ◽  
Structural Quality ◽  
Monolayer Graphene ◽  
Distributed Bragg Reflector ◽  
Base Structure

The paper presents the results of experiments in the fabrication and research of properties of photodetector structures on the basis of monolayer graphene produced by chemical vapor deposition. The base structure was the geometry of a Ta2O5 vertical microcavity with a lower dielectric SiO2/Ta2O5 distributed Bragg reflector with a resonance wavelength of about 850 nm. The conditions were optimized for the transfer and fabrication of mesas in the graphene layer on the microcavity surface. The diagnostics of the structural quality of graphene after the fabrication of mesas in the graphene layer and contact pads by Raman spectroscopy evidence the monolayer structure of graphene with a low singularity strength in its spectrum that is responsible for the structure imperfection. The photocurrent value at local optical pumping was measured.

Self-Focused Broad Area Distributed Bragg Reflector Laser Diodes

2005 ◽  
Author(s):  
G.S. Sokolovskii ◽  
I.M. Gadjiev ◽  
A.G. Deryagin ◽  
V.V. Dudelev ◽  
S.N. Losev ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Bragg Reflector ◽  
Broad Area ◽  
Distributed Bragg Reflector

Photonic Integrated Circuit Combining Two GaAs Distributed Bragg Reflector Laser Diodes for Generation of the Beat Signal

1992 ◽  
Vol 31 (Part 2, No. 2B) ◽  
pp. L183-L185 ◽  
Author(s):  
Minoru Maeda ◽  
Takaaki Hirata ◽  
Masayuki Suehiro ◽  
Mamoru Hihara ◽  
Akira Yamaguchi ◽  
...  
Keyword(s):  
Integrated Circuit ◽  
Laser Diodes ◽  
Bragg Reflector ◽  
Beat Signal ◽  
Distributed Bragg Reflector ◽  
Photonic Integrated Circuit

Improved beam quality for high-power tapered laser diodes with LMG (low-modal-gain) epitaxial layer structures

1998 ◽  
Author(s):  
Michael Mikulla ◽  
Alexis Schmitt ◽  
Pierre Chazan ◽  
A. Wetzel ◽  
Martin Walther ◽  
...  
Keyword(s):  
Epitaxial Layer ◽  
High Power ◽  
Beam Quality ◽  
Laser Diodes ◽  
Modal Gain ◽  
Layer Structures ◽  
Tapered Laser

High-power singlemode AlGaAs distributed Bragg reflector laser diodes operating at 856 nm

1994 ◽  
Vol 30 (6) ◽  
pp. 496-497 ◽  
Author(s):  
J.S. Major ◽  
S. O'Brien ◽  
R.J. Lang ◽  
V. Gulgazov ◽  
D.F. Welch
Keyword(s):  
High Power ◽  
Laser Diodes ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector
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