Characteristics of mode-coupled lasers

Peer Reviewed: Twenty Years of Laser Research in Analytical Chemistry

“…The ideal source would have a high, variable repetition rate, picosecond pulse widths, and an adjustable wavelength. We started with a mode-locked argon-ion laser that provided subnanosecond pulses at a fixed, high repetition rate (14). Helping us was Henri Merkelo, an electrical engineer from the University of Illinois, who was using mode-locked lasers with phase fluorimetry (15).…”

Self-Locking and Other Modes of the Laser Oscillations

“…Therefore, in view of the above, experiments on the additional feedback and cavity mirrors positions suggests that the laser pulse consists of two parts: a short spike, π pulse or near a pulse, shorter than 0.2 ns (0.5 ns is given in Ref. [2]), and a long tail (2-3 ns or more). Naturally, any increase in the intracavity laser radiation, by reducing the cavity losses, does not increase the spike but only increases the tail -its intensity and then its length.…”

“…[1][2][3][4][5][6][7]. In general, the experiments concern the mode locking stimulated by passive or active intracavity loss modulation.…”

“…The self-locking (SL) is obtained when cavity losses are above some critical value, however, well below the one above which the laser generation does not develop (Ref. [2]). …”

“…Instead of screening the intracavity radiation, the SL is obtained by the proper choice of transmissions of the mirrors, as shown in Ref. [2]. Also some experiments are presented on L. Lis perturbation of the laser generation by some part of its radiation reflected back into the cavity.…”