Title :
Modulation bandwidth enhancement and nonlinear distortion suppression in directly modulated monolithic injection-locked DFB lasers
Author :
Sung, H.-K. ; Jung, Thomas ; Wu, Ming C. ; Tishinin, D. ; Tanbun-Ek, T. ; Liou, K.Y. ; Tsang, W.T.
Author_Institution :
Dept. of Electr. Eng., UCLA, Los Angeles, CA, USA
Abstract :
We have experimentally investigated the dynamic performance and the suppression of nonlinear distortions of a monolithic optical injection-locked distributed feedback (DFB) laser. The master and the slave lasers are monolithically integrated in a single strip of strongly coupled DFB laser. Optical injection locking is achieved by current tuning. The resonant frequency of the laser is increased from 11 GHz to 23 GHz, and nonlinear distortions are suppressed by more than 15 dB.
Keywords :
distributed feedback lasers; integrated optoelectronics; laser cavity resonators; laser tuning; monolithic integrated circuits; nonlinear optics; optical distortion; optical modulation; semiconductor lasers; DFB lasers; current tuning; directly modulated lasers; injection-locked lasers; master laser; modulation bandwidth enhancement; monolithically integrated lasers; nonlinear distortion suppression; optical injection locking; resonant laser frequency; slave laser; strongly coupled lasers; Bandwidth; Distributed feedback devices; Laser feedback; Laser noise; Laser tuning; Nonlinear distortion; Nonlinear optics; Optical distortion; Optical feedback; Optical modulation;
Conference_Titel :
Microwave Photonics, 2003. MWP 2003 Proceedings. International Topical Meeting on
Print_ISBN :
0-7803-8691-4
DOI :
10.1109/MWP.2003.1422816
