Highly efficient heat extraction by double diamond heat-spreaders applied to a vertical external cavity surface-emitting laser

被引：16
|
作者：
Broda, Artur [1 ]
Kuzmicz, Aleksandr [1 ]
Rychlik, Grzegorz [2 ]
Chmielewski, Krzysztof [1 ]
Wojcik-Jedlinska, Anna [1 ]
Sankowska, Iwona [1 ]
Golaszewska-Malec, Krystyna [1 ]
Michalak, Krzysztof [1 ]
Muszalski, Jan [1 ]
机构：
[1] Inst Electr Mat Technol, Al Lotnikow 32-46, PL-02668 Warsaw, Poland
[2] Warsaw Univ Technol, Fac Phys, Ul Koszykowa 75, PL-00668 Warsaw, Poland
来源：
OPTICAL AND QUANTUM ELECTRONICS | 2017年 / 49卷 / 09期
关键词：
Semiconductor lasers; Vertical external cavity surface-emitting lasers; Thermal effects; SEMICONDUCTOR-LASERS; POWER; DESIGN; VECSEL;
D O I：
10.1007/s11082-017-1129-x
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We compare the heat extraction efficiency for a standard Vertical External Cavity Surface-Emitting Laser and the distributed Bragg reflector (DBR)-free structure employing a single and double diamond heat-spreaders, respectively. Both heterostructures grown by Molecular Beam Epitaxy employ two identical active regions designed for emission at 980 nm. We show that the thermal resistance has been decreased 15 times when there is no DBR and heat is extracted from both side of active region. For DBR-free laser no thermal rollover of power conversion characteristic was observed in the range of considered input powers.
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页数：7
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