DocumentCode :
1050454
Title :
Operation of a 25-Gb/s Direct Modulation Ridge Waveguide MQW-DFB Laser up to 85 
C
Author :
Tadokoro, Takashi ; Yamanaka, Takayuki ; Kano, Fumiyoshi ; Oohashi, Hiromi ; Kondo, Yasuhiro ; Kishi, Kenji
Author_Institution :
NTT Photonics Labs., Atsugi, Japan
Volume :
21
Issue :
16
fYear :
2009
Firstpage :
1154
Lastpage :
1156
Abstract :
We demonstrated a 25-Gb/s direct modulation up to 85degC with a 1.3- mum InGaAlAs ridge-waveguide multiple-quantum-well distributed-feedback laser. The dependence of the relaxation oscillation frequency on current was 3.3 GHz/mA1/2, and this is the highest value ever reported for 200-mum-long lasers in the 1.3-mum wavelength region. The alpha parameter was around 2.7 at 25degC, and an error-free operation after a 10-km single-mode fiber transmission was obtained up to 85degC.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; indium compounds; laser modes; optical fibre communication; optical modulation; optical transmitters; quantum well lasers; ridge waveguides; InGaAlAs; MQW-DFB Laser; bit rate 25 Gbit/s; direct modulation ridge waveguide operation; distance 100 km; fiber-optic transmitter; laser error-free operation; multiple-quantum-well distributed-feedback laser; relaxation oscillation frequency; single-mode fiber transmission; temperature 25 degC; temperature 85 degC; wavelength 1.3 mum; wavelength 200 mum; 100GBASE-LR4; Direct modulation; ridge waveguide (RWG) multiple quantum well (MQW) distributed-feedback (DFB) laser; uncooled laser;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2009.2023797
Filename :
5061516
Link To Document :
