Title :
1-GHz All-Optical Flip-Flop Operation of Conventional Cylindrical-Shaped Single-Mode VCSELs Under Low-Power Optical Injection
Author :
Lee, Seoung Hun ; Jung, Hae Won ; Kim, Kyong Hon ; Lee, Min Hee ; Yoo, Byeung-Soo ; Roh, Jay ; Shore, K. Alan
Author_Institution :
Dept. of Phys., Inha Univ., Incheon, South Korea
Abstract :
All-optical set-reset flip-flop operations of conventional circular cylindrical-shaped 1.55-μm wavelength single-mode vertical-cavity surface-emitting lasers (VCSELs) have been demonstrated at a switching frequency of 1 GHz based on polarization bistability observed via injection current variation. The energy of set and reset pulses was lower than 4.5 fJ at a bias current of the VCSEL of 4 mA. Polarization bistable VCSELs will be useful for high-speed optical signal processing applications.
Keywords :
flip-flops; laser cavity resonators; laser modes; light polarisation; optical bistability; optical switches; semiconductor lasers; surface emitting lasers; all-optical set-reset flip-flop operation; circular cylindrical-shaped single-mode vertical-cavity surface-emitting lasers; current 4 mA; cylindrical-shaped single-mode VCSEL; frequency 1 GHz; high-speed optical signal processing; injection current variation; low-power optical injection; polarization bistability; switching frequency; wavelength 1.55 mum; Flip-flops; Optical attenuators; Optical bistability; Optical polarization; Optical pulses; Optical switches; Polarization; Vertical cavity surface emitting lasers; Flip-flops; optical bistability; optical injection; polarization switching; vertical-cavity surface-emitting lasers ( VCSELs );
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2078803
