Polarization control and tuning efficiency of tunable vertical-cavity surface-emitting laser with internal-cavity sub-wavelength grating
Wang Xiao-Long
, Zou Yong-Gang
†
, He Zhi-Fang
, Liu Guo-Jun
‡
, Ma Xiao-Hui
§
The schematics of the tunable VCSELs with the SCC, EC, and ISWG structures, respectively.