en Improved bandwidth in VCSEL with modulated Holding Beam تخصصی Special پژوهشي Research Abstract- A modulated holding beam shining a VCSEL can improve modulation bandwidth by adjusting the semiconductor laser’s relaxation oscillation frequency. The improved modulation characteristics are accompanied by reduced damping rate. By choosing correct parameters, dynamical behaviors of system and cavity soliton are changed. Different features of cavity soliton such as maximum amplified intensity and frequency fluctuations are observable. Abstract- A modulated holding beam shining a VCSEL can improve modulation bandwidth by adjusting the semiconductor laser’s relaxation oscillation frequency. The improved modulation characteristics are accompanied by reduced damping rate. By choosing correct parameters, dynamical behaviors of system and cavity soliton are changed. Different features of cavity soliton such as maximum amplified intensity and frequency fluctuations are observable. Holding Beam, Modulation, Semiconductor laser. Holding Beam, Modulation, Semiconductor laser. 69 72 http://opsi.ir/browse.php?a_code=A-10-1-49&slc_lang=en&sid=1 Sahar Ahmadipanah Sahar Ahmadipanah s.ahmadipanah@gmail.com 10031947532846001755 10031947532846001755 Yes Photonics group, Research Institute for Applied Physics and Astronomy, Tabriz University, Photonics group, Research Institute for Applied Physics and Astronomy, Tabriz University, Reza Kheradmand Reza Kheradmand r_kheradmand@tabrizu.ac.ir 10031947532846001756 10031947532846001756 No Photonics group, Research Institute for Applied Physics and Astronomy, Tabriz University, Photonics group, Research Institute for Applied Physics and Astronomy, Tabriz University,