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25 February 2010 Frequency stabilization of a laser diode using Rb saturated absorption lines
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We have succeeded, thus far, in stabilizing laser diode (LD) frequencies to Rb absorption lines, by means of negative electrical feedback. While the absorption lines were stable over the long term, the Doppler Effect's influence was evident, in broadened spectrum linewidth. To avoid the problem in subsequent tests, we used Rb-saturated absorption signals. In this work, we demonstrated potentials of two applications; one was as a reference signal source for estimation of other LD's frequency stabilization system, and the other was a light source for generation of THz radiation.­¬«W
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Ayumi Sato, Kenji Nakano, Hideaki Arai, Takashi Sato, and Masashi Ohkawa "Frequency stabilization of a laser diode using Rb saturated absorption lines", Proc. SPIE 7597, Physics and Simulation of Optoelectronic Devices XVIII, 75971N (25 February 2010);

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