Title :
1.3-μm quantum dot DFB laser with Half-Etching Mesa and high density QD
Author :
Amano, T. ; Goshima, K. ; Sugaya, T. ; Komori, K.
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Tsukuba
Abstract :
This paper proposes a quantum dot half-etching mesa distributed feed back (QD HEM DFB) laser. A 1.3 mum HEM DFB laser with low threshold current of 35 mA and low coupling coefficient of 22 cm-1 is demonstrated . Fabricating a HEM DFB laser with lambda/4-shifted structure, a single mode operation and high SMSR at 1.3 mum emission is realized.
Keywords :
distributed feedback lasers; laser beams; laser feedback; quantum dot lasers; coupling coefficient; current 35 mA; half-etching mesa; quantum dot distributed feed back laser; single mode operation; threshold current; wavelength 1.3 mum; Etching; Fiber lasers; Gratings; Laser modes; Laser theory; Optical coupling; Plasma temperature; Quantum dot lasers; Semiconductor lasers; Threshold current;
Conference_Titel :
Semiconductor Laser Conference, 2008. ISLC 2008. IEEE 21st International
Conference_Location :
Sorrento
Print_ISBN :
978-1-4244-1782-7
Electronic_ISBN :
978-1-4244-1783-4
DOI :
10.1109/ISLC.2008.4636034
