Title :
Dynamic nonlinearity reduction of DFB-LD by dual parallel modulation
Author :
Jung, Hyun-Do ; Han, Sang-Kook
Author_Institution :
Dept. of Electr. & Comput. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
Fiber optical links are optimal for the transmission of high fidelity signals for suboctave analog applications. It is necessary that these systems have a high linearity to satisfy the signal-to-noise ratio at receiver. Nonlinear distortion introduced by the directly modulated laser diode can limit considerably the system performance. We have proposed a novel dualparallel scheme for nonlinearity suppression of directly modulated DFB laser diode. Two-tone experiments were performed to confirm the validity of the proposed scheme. In experiments, the IMD3 reduction of 16dB was obtained
Keywords :
distributed feedback lasers; electro-optical modulation; nonlinear distortion; nonlinear optics; optical transmitters; semiconductor lasers; DFB-LD; IMD3 reduction; directly modulated DFB laser diode; directly modulated laser diode; dual parallel modulation; dualparallel scheme; dynamic nonlinearity reduction; high fidelity signals; nonlinearity suppression; optimal fiber optical links; receiver; signal-to-noise ratio; suboctave analog applications; Frequency modulation; High speed optical techniques; Intermodulation distortion; Linearity; Nonlinear distortion; Nonlinear optics; Optical distortion; Optical modulation; Optical receivers; Radio frequency;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.890680
