Journal of Applied Physics
Wave guides, Lasers -- Power supply, Reflectance, Optical amplifiers -- Noise
Double-pass laser amplifiers can provide automatic passive regulation of the power in an optical signal. This regulation can significantly reduce the amplitude noise on a laser beam that is intended as a continuous wave light source. Analytic expressions are derived to describe the optical-noise-reduction region of double-pass amplifier operation and the dependence of the self-regulation properties on gain, saturation, and mirror reflectivity.
Casperson, L. W., & Casperson, J. M. (2000). Power self-regulation in double-pass high-gain laser amplifiers. Journal of Applied Physics, 87(5), 2079-2083.