Publications [#303731] of Hugh Robinson

Papers Published
  1. Kitching, J; Robinson, HG; Hollberg, L; Knappe, S; Wynands, R, Optical-pumping noise in laser-pumped, all-optical microwave frequency references, Journal of the Optical Society of America B, vol. 18 no. 11 (January, 2013), pp. 1676-1683, {OPTICAL SOC AMER} .

    Abstract:
    {We demonstrate that optical pumping plays a significant role in determining the noise in certain types of laser-pumped vapor-cell microwave frequency standards by changing the way in which the laser's FM noise is converted to AM noise by the optical-absorption profile. When this FM-AM conversion is the dominant noise source, the noise spectrum of the transmitted intensity can be dramatically altered by the optical-pumping process. FM noise at Fourier frequencies larger than the optical-pumping time is converted to AM noise differently from noise at lower Fourier frequencies. This effect can modify the optimum design of vapor-cell frequency references and adds an additional FM-AM-related noise source that cannot be eliminated with laser tuning. (C) 2001 Optical Society of America.}