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Brief Communications

Nonlinear total internal reflection and its utilization in ruby laser mode locking

A. N. Rubinov, I. M. Korda


Abstract: Nonlinear total internal reflection was observed experimentally when a solution of phototropic dye was used as the optically rarer medium. This effect was used for Q switching and mode locking in solid-state lasers. A train of ultrashort pulses modulated to a depth close to 100% was obtained for a ruby laser in a plane-minor resonator pumped at a level 1–2% higher than the threshold.

UDC: 621.378.325

PACS: 42.55.Rz, 42.60.By, 42.60.Fc, 42.60.Da, 42.79.Bh, 42.65.-k

Received: 26.09.1972

 English version: Soviet Journal of Quantum Electronics, 1974, 3:4, 334