Title :
Broadband Chaos Generation Using Monolithic Dual-Mode Laser With Optical Feedback
Author :
Biwei Pan ; Dan Lu ; Lingjuan Zhao
Author_Institution :
Key Lab. of Semicond. Mater. Sci., Inst. of Semicond., Beijing, China
Abstract :
We propose and demonstrate a novel broadband chaos generator using monolithic-integrated dual-mode amplified feedback laser (AFL) with an optical feedback. An external fiber loop is used to drive a free-running dual-mode AFL into a chaos state. The intercoupling between the two chaotic oscillation originated from the two laser modes produces a broadband chaos signal with a flat RF spectrum. A robust chaotic signal that covers an RF frequency of over 50 GHz, with a bandwidth of 32 GHz, an effective bandwidth of 28 GHz, and a flatness of 6.3 dB, is experimentally achieved.
Keywords :
erbium; laser feedback; laser modes; optical attenuators; optical chaos; optical fibre amplifiers; optical fibre polarisation; oscilloscopes; spectral analysers; AFL; EDFA; RF spectrum analyzer; bandwidth 28 GHz; broadband chaos generation; chaotic oscillation; external fiber loop; flat RF spectrum; intercoupling; laser modes; monolithic dual-mode laser; monolithic-integrated dual-mode amplified feedback laser; optical feedback; optical spectrum analyzer; photodetector; polarization controller; variable optical attenuator; wide band real time oscilloscope; Bandwidth; Broadband communication; Chaotic communication; Optical attenuators; Optical feedback; Optical fibers; Broadband; Chaos; Dual-mode Laser; chaos; dual-mode laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2474357
