GaAs based anti-resonant Fabry–Perot saturable absorber fabricated by metal organic vapor phase epitaxy and ion implantation

Abstract
We have fabricated an antiresonant Fabry–Perot saturable absorber (A-FPSA), for potential use in laser passive mode locking, using metalorganic vapor phase epitaxy followed by ion implantation and thermal annealing. We show that the implantation/annealing cycle shortens the free-carrier dwell time without degrading the other optical properties of the A-FPSA.