Title :
Uncooled 25 Gbit/s direct modulation of semi-insulating buried-heterostructure 1.3 μm AlGaInAs quantum-well DFB lasers
Author :
Otsubo, K. ; Matsuda, M. ; Takada, K. ; Okumura, S. ; Ekawa, M. ; Tanaka, H. ; Ide, S. ; Mori, K. ; Yamamoto, T.
Author_Institution :
Fujitsu Labs. Ltd. & Fujitsu Ltd., Atsugi
Abstract :
Uncooled 25 Gbit/s direct modulation of 1.3 mum DFB lasers is demonstrated. The 150 mum-long semi-insulating buried-heterostructure AIGalnAs quantum-well DFB lasers show clear eye-openings with dynamic extinction ratio of 5 dB up to 70degC. 13 km singlemode-fibre transmission experiments using the devices show low power penalty within 1.3 dB between 25 and 70degC. These characteristics are the first achievement by 1.3 mum directly modulated lasers.
Keywords :
III-V semiconductors; aluminium compounds; distributed feedback lasers; gallium arsenide; indium compounds; optical fibre communication; optical modulation; optical transmitters; quantum well lasers; AlGaInAs; bit rate 25 Gbit/s; distance 13 km; quantum-well DFB laser; semiinsulating buried-heterostructure; singlemode-fibre transmission; size 150 mum; temperature 25 C to 70 C; uncooled direct modulation; wavelength 1.3 mum;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20080693
