The Air Force Research Laboratory's position, timing, and navigation program is building the capability to develop and test optical frequency atomic clocks suitable for many terrestrial and space based applications. We report on our efforts to develop a two-photon Rb optical clock at 778 nm. The standard is relatively simple in design and construction and can take advantage of narrow linewidth, stable, commercially available telecom lasers. Manufacturability has been a focus and these clocks are expected to meet GPS-III frequency stability requirements with good size, weight, and power.
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