The chemical oxygen-iodine laser (COIL) research in Israel is conducted at Ben-Gurion University and includes theoretical and experimental studies of novel singlet-delta oxygen generators (SOG) and of small scale supersonic COILs. Both sparger-type and jet-type SOGs are investigated, in particular the conditions for high pressure operation of the latter type. A general model has been developed, capable of treating, from a single point of view, different types of SOGs with both turbulent and laminar flow of the liquid. A jet-type SOG has been constructed and its operation under different flow conditions is studied. A small scale supersonic COIL has been assembled and is used for studying operation parameters which are important for high power supersonic COILs. In particular, theoretical and experimental investigations of iodine/oxygen mixing in the nozzles of the laser are pursued. A simple, one-dimensional leak flow tube model is used to calculate the effect of mixing on the performance of the COIL. The mixing is monitored using photographic techniques. The power output of the laser and the gain (using stabilized diode at 1315 nm) are measured under different operation conditions and the results are compared to the calculations in order to obtain a reliable model capable of reproducing and predicting the laser performance at different conditions.
|State||Published - 1 Jan 1994|
|Event||AIAA 25th Plasmadynamics and Lasers Conference, 1994 - Colorado Springs, United States|
Duration: 20 Jun 1994 → 23 Jun 1994
|Conference||AIAA 25th Plasmadynamics and Lasers Conference, 1994|
|Period||20/06/94 → 23/06/94|