Advances in the Development of Chemical Oxygen-iodine Laser

Results of three problems investigated on a Chemical Oxygen-Iodine Laser (COIL) in our laboratory are presented in connection with the advanced COIL development in the world. These problems concern: i) A gain modulation on the laser transition in iodine atom, I(²P_1/2) - (²P_3/2), by external magnetic field, and its utilization for a COIL output power stabilization, ii) An evaluation of the Einstein A-coefficient of singlet oxygen, O₂(¹ _g), and its utilization in advanced diagnostics for O₂(¹ _g) determination in COIL operation, iii) A chemically driven iodine atom delivery system for advanced COIL.