Optical module for atomic oscillator and atomic oscillator
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United States of America Patent
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Jan 28, 2014
Grant Date -
Sep 20, 2012
app pub date -
Mar 13, 2012
filing date -
Mar 14, 2011
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Abstract
An optical module for an atomic oscillator using a quantum interference effect includes a light source adapted to emit light including a fundamental wave having a predetermined wavelength, and sideband waves of the fundamental wave, a wavelength selection section receiving the light from the light source, and adapted to transmit the sideband waves, a gas cell encapsulating an alkali metal gas and irradiated with light transmitted through the wavelength selection section, and a light detection section adapted to detect an intensity of light transmitted through the gas cell, and the wavelength selection section including an optical filter section adapted to transmit light having a wavelength within a predetermined wavelength range, and an optical filter characteristic control section adapted to vary the wavelength range of light to be transmitted by the optical filter section.
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