Resonator to Laser Cavity Decoupling Interface for Chemical Oxygen Iodine Laser
In the present work, the conventional chemical oxygen iodine laser (COIL) source has been technologically upgraded and successfully tested after implementation of decoupling interface between laser cavity and resonator. In the technique, anti-reflection coated fused silica windows mounted in suitable mechanical assemblies are placed between resonator mirrors and laser cavity in such a way that the generated laser beam is out coupled through the resonator during the laser operation. The implemented decoupling assemblies isolate the caustic environment produced in low pressure laser cavity from that of resonator mirrors. Thus requirement of using isolation valves and cavity limbs between laser cavity and resonator as in conventional COIL source is eliminated. Such decoupling mechanism therefore effectively reduces the number of associated components as well as overall length of the laser source which in turn further reduces the overall weight of the laser making it suitable for use onto a mobile platform. Moreover the technique provides accrued benefits in terms of reduction in readiness time and checking of optical alignment of the laser source at will in practical operation scenarios.
W. E. McDermott, N. R. Pchelkin, D. J. Benards and R. R. Bousek, Applied Physics Letter, 32, 469, (1978).
K. Grunewald, W. L. Bdin, F. Duschek, J. Hankle, W. O. Schall, Proceeding of SPIE, 5479, 35, (2004).
E. A. Duff, K. A. Truesdell, Proceedings of SPIE, 5414, 52, (2004).
A. S. Boreisho, A. B. Barkan, D. N. Vasil’ev, I. M. Evdokimov, A. V. Savin, Quantum Electronics, 35(6), 495, (2005).
D. L. Carroll, D. M. King, L. Focker, D. Stromberg, T. J. Madden, W. C. Solomon, L. N. Sentman, AIAA, paper, 98, 2992, (1998).
S. Jia, Q. Li, Y. Jin, Y. Zhang, Z. Geng, Y. Li, P. Zhang, W. Shi, B. Fang and F. Sang, Journal of Russian Laser Research, 38(1), 96, (2017).
M. V. Zagidullin, M. S. Malyshev and V. N. Azyazov, Quantum Electronics, 45, 720, (2015).
G. Singhal, P. M. V. Subbarao, Mainuddin, R. K. Tyagi and A. L. Dawar, Thermophysics and Aeromechanics, 24(3), 449, (2017).
Mainuddin, Gaurav Singhal, R K Tyagi, A K Maini, Journal of Optics and Laser Technology, 47, 56, (2013).
R. Rajesh, Gaurav Singhal, Mainuddin, R. K. Tyagi and A. L. Dawar, Optics and Laser Technology, 42, 580, (2010).
Mainuddin, M. T. Beg, Moinuddin, R. K. Tyagi, R. Rajesh, Gaurav Singhal and A. L. Dawar, Sensors and Actuators B,109, 375, (2005).
Mainuddin, M. T. Beg, Moinuddin, R. K. Tyagi, R. Rajesh, Gaurav Singhal and A. L. Dawar, International Journal of Infrared and Millimeter Waves, 1, 91, (2005).
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