Title :
Widely Tunable Ultra-Wideband Signals Generation Utilizing Optically Injected Semiconductor Laser
Author :
Wang, Yuncai ; Zheng, Jianyu ; Zhang, Mingjiang ; Wang, Anbang
Author_Institution :
Dept. of Phys. & Optoelectron., Taiyuan Univ. of Technol., Taiyuan, China
Abstract :
We propose and experimentally demonstrate an approach to generate ultra-wideband (UWB) pulse based on period-one oscillation of semiconductor laser. The baseband UWB signal with 10-dB bandwidth of 5.59 GHz is generated when the gain-switched pulse train is injected into the slave laser diode. Moreover, the center frequency of the generated UWB signal can be continuously tuned and converted up to 19.53 GHz by adjusting the optical frequency detuning in optical domain directly.
Keywords :
laser tuning; optical frequency conversion; semiconductor lasers; bandwidth 5.59 GHz; gain switched pulse train; optical domain; optical frequency detuning; optically injected semiconductor laser; period one oscillation; slave laser diode; ultrawideband pulse; widely tunable ultrawideband signals generation; Optical attenuators; Optical feedback; Optical fibers; Optical mixing; Optical polarization; Optical pulses; Optical injection; period-one oscillation; semiconductor lasers; ultra-wideband (UWB);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2096204
