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Evaluation of the clock laser for an Yb lattice clock using an optic fiber comb

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7 Author(s)
Kazumoto Hosaka ; National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), CREST, Japan Science and Technology Agency ; Hajime Inaba ; Yoshiaki Nakajima ; Masami Yasuda
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A light source to drive the 1S0-3P0 transition in Yb atoms is generated by 2 solid state lasers: a Nd:YAG laser and an Yb:YAG laser, using a sum-frequency generation (SFG) scheme. With a ridge waveguide (WG) periodically poled lithium niobate (PPLN) device, SFG power of about 150 mW is obtained at the required frequency. The zero-expansion temperature of a Fabry-Perot etalon was determined by using a home-made fiber-based optical frequency comb running continuously for weeks. Frequency stabilization of the clock laser system was also evaluated by the optical frequency comb.

Published in:

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control  (Volume:57 ,  Issue: 3 )