Feedback from an amplifier into an unstable resonator

Alan H. Paxton; Robert Bruce Michie; Dushan Mitrovich

doi:10.1117/12.150604

13 August 1993 Feedback from an amplifier into an unstable resonator

Alan H. Paxton, Robert Bruce Michie, Dushan Mitrovich

Proceedings Volume 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications; (1993) https://doi.org/10.1117/12.150604
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

An oscillator-amplifier configuration is described in which the amplifier's spontaneous emission (ASE) feeds partially collimated light from the amplifier into the oscillator that is driving it. The resonator is confocal, and its axis is decentered so that the output is shifted laterally. The partial collimation of the input light causes a buildup of ASE in the resonator so that a small amount of power entering it can have a significant effect on the beam quality of the output.

Citation Download Citation

Alan H. Paxton, Robert Bruce Michie, and Dushan Mitrovich "Feedback from an amplifier into an unstable resonator", Proc. SPIE 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications, (13 August 1993); https://doi.org/10.1117/12.150604

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