Title :
Improved Continuous-Wave Performance of Two-Section Quantum-Dot Superluminescent Diodes by Using Epi-Down Mounting Process
Author :
Li, Xinkun ; Jin, Peng ; An, Qi ; Wang, Zuocai ; Lv, Xueqin ; Wei, Heng ; Wu, Jian ; Wu, Ju ; Zhanguo Wang
Author_Institution :
Key Lab. of Semicond. Mater. Sci., Inst. of Semicond., Beijing, China
fDate :
7/15/2012 12:00:00 AM
Abstract :
Using AlN submounts with metal patterns made by a photolithographic process, the two-section quantum-dot superluminescent diodes were mounted epi-down on the heatsinks. It is demonstrated that the epi-down mounting process can offer improved heat dissipation and optical performance in the two-section devices. Under continuous-wave operation without temperature control, by properly controlling the pump levels in the two sections, a broad flat-top-like emission spectrum of 112 nm with a high output power of 107 mW is obtained from a two-section quantum-dot superluminescent diode with an epi-down mounting structure.
Keywords :
aluminium compounds; cooling; heat sinks; photolithography; quantum dots; superluminescent diodes; AlN; AlN submounts; continuous-wave performance; epi-down mounting process; heat dissipation; heat sinks; metal patterns; photolithographic process; two-section quantum-dot superluminescent diodes; wavelength 112 nm; Metals; Optical imaging; Optical sensors; Power amplifiers; Power generation; Quantum dots; Superluminescent diodes; Epi-down mounting; quantum dots (QDs); superluminescent diodes (SLDs); two-section structure;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2199295
