Open AccessIntensification of heat transfer in high-power laser diode bars by means of porous metal heat-sink
Author(s) -
В. В. Аполлонов,
S. I. Derzhavin,
V V Kuz'minov,
D.A. Mashkovskiy,
V. N. Timoshkin,
V.A. Philonenko
Publication year - 1999
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.4.000027
Subject(s) - heat sink , materials science , heat transfer , heat spreader , porosity , diode , thermal , mechanics , optics , thermodynamics , optoelectronics , composite material , physics
To intensify a heat transfer in high-power emitters based on laser diode bars we propose the use of a heat sink from a porous permeable material cooled by a fluid flow [1-3]. The main advantage of this class of materials is the possibility of removing significant heat flows with compact heat sink. An analysis of the characteristic values of the thermal loads and their relations with the material and liquid parameters drawn from an one-dimensional model of stationary one-sided heat exchange shows the possibility of heat flow removal of more than 1.5 kW/cm 2 at room temperature in a liquid. Methods for improving the effectiveness of the strategy are considered.