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Stepped diode laser module with cooling structure

A laser module, laser source technology, applied at the first end of each cooling channel to distribute cooling fluid; field, capable of solving problems such as cooling laser diode components

Active Publication Date: 2018-03-27
TRUMP PHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The prior art does not teach or suggest effective structures or methods for cooling laser diode assemblies having a stepped, preferably monolithic, ceramic base

Method used

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  • Stepped diode laser module with cooling structure
  • Stepped diode laser module with cooling structure
  • Stepped diode laser module with cooling structure

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Embodiment Construction

[0043] One aspect of the invention relates to a stepped diode laser module, suitable for being arranged for multiple laser sources in an optical stack, made of ceramic with integrated cooling channels for efficient heat dissipation from the individual laser sources, Integrated metallization pads via soldering for adaptation to individual laser sources, integrated conductive layers and integrated mounting pads for beam shaping and beam direction optics. A coolant, such as non-deionized water, flows through the cooling structure, allowing the laser module to have a lower component count and improved power density.

[0044] Laser diode 100 is shown in Figure 1, and in figure 2 The center is located on a submount 200 which is usually larger than the laser diode.

[0045] image 3 , 4 An embodiment of a multiple single emitter module according to an aspect of the present invention is shown in and 5 . Figure 3 to Figure 5 The illustration in fig. shows a stepped or staggered la...

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Abstract

A laser module has a unitary base including stepped platforms with an offset relative to an adjacent platform, each stepped platform accommodating a laser source with at least a first and a second plurality of stepped platforms, each platform accommodating a cooling channel inside at a predetermined depth below the top surface of the platform to conduct a flow of cooling fluid provided on an inlet, the cooling channel running under a platform having microchannels, the cooling channels being connected to a fluid inlet with an inlet manifold that provides cooling fluid at the inlet and an outletmanifold to dispose the cooling fluid with waste heat at an outlet, the laser module producing in one embodiment no less than 100 Watt of optical power.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application No. 14 / 794,254, filed July 8, 2015, the contents of which are incorporated herein by reference. Background technique [0003] The present invention generally relates to multi-emitter laser modules with integrated cooling systems. [0004] A single semiconductor laser or emitter is compact and widely used in a wide range of applications. In some applications, optical output power significantly greater than that of a single emitter is required. One solution is to create modules with multiple single emitters and combine the light output of the individual single emitters into a combined light output. The term single emitter is used herein. An example of a single emitter is eg the L4 diode laser module from the company JDS Uniphase. However, the laser radiation source can also be a semiconductor laser or a stack or array or bar of a plurality of laser diodes. An e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/024H01S5/40
CPCH01S5/0071H01S5/02216H01S5/02423H01S5/02476H01S5/4012H01S5/405H01S5/02326H01S5/024H01S5/02407
Inventor T·维特哈克J·艾森曼S·海涅曼
Owner TRUMP PHOTONICS
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