Characteristics of laser diode bar and stack with jet-type, water-cooled heatsink

被引：4

作者：

Miyajima, H

Kan, H

Furuta, S

Uchiyama, T

Oishi, S

Yamanaka, M

Izawa, Y

Nakai, S

机构：

[1] Hamamatsu Photon KK, Cent Res Lab, Shizuoka 4348601, Japan

[2] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 9A期

关键词：

laser diode; laser diode bar; heatsink; thermal resistance; jet cooling; stack;

D O I：

10.1143/JJAP.43.6074

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Our group has developed a funryu ("fountain flow" in Japanese) heatsink structure for a 1 cm laser diode (LD) bar. The funryu heatsink is only 1.1 mm in thickness and is designed in stackable form. With the help of a good indium soldering technique and detailed thermal analysis, this device achieved a thermal resistance of only 0.25degreesC/W, defined by the temperature increase per unit of heat dissipation. This thermal resistance is one of the lowest ever attained by a laser diode bar. By stacking 30 LD bars equipped with these funryu heatsinks, we achieved a CW output power of 2.3 kW from a 10 turn x 45.8 mm laser-emitting area within the stacked-LD module. This power intensity corresponds to 502 W/cm(2).

引用

页码：6074 / 6078

页数：5

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