Title :
Low frequency chirp self-assembled InGaAs/GaAs quantum dot lasers
Author :
Hatori, Nobuaki ; Sugawara, Mitsuru ; Akiyama, Tomoyuki ; Nakata, Yoshiaki
Author_Institution :
Fujitsu Labs. Ltd., Atsugi, Japan
Abstract :
We measured and compared frequency chirp between a quantum dot laser and a quantum well laser. The chirp of the quantum dot laser was below 0.5 GHz, and it was much smaller than that of the quantum well laser. This is, to our knowledge, the first direct quantitative evaluation of frequency chirp in a quantum dot laser
Keywords :
III-V semiconductors; chirp modulation; electro-optical modulation; gallium arsenide; indium compounds; quantum well lasers; self-assembly; semiconductor quantum dots; 0.5 GHz; AM cancellation technique; InGaAs-GaAs; intensity waveform; lasing spectrum; light output-current characteristics; low frequency chirp self-assembled InGaAs/GaAs quantum dot lasers; quantitative evaluation; quantum dot laser; symmetrical gain spectra; threshold current; Chirp modulation; Fiber lasers; Frequency; Gallium arsenide; Indium gallium arsenide; Optical fibers; Quantum dot lasers; Quantum well lasers; US Department of Transportation; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969279
