Frequency-stabilized 1520-nm diode laser with rubidium 5S(1/2) --> 7S(1/2) two-photon absorption.
A 760-nm light source of >10 mW is obtained from a frequency-doubled external-cavity diode laser by use of using an erbium-doped fiber amplifier and a periodically poled lithium niobate waveguide. The 5S(1/2) --> 7S(1/2) two-photon transitions of rubidium are observed with such a light source. This laser frequency is locked to the Rb two-photon transitions with an instability of 10 kHz (1 s). Our experimental scheme provides a compact, high-performance frequency, standard in the S band (1480-1530 nm) for fiber-optic communication and sensing applications.
Chui
Hsiang-Chen
HC
Department of Electrical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan. d897916@oz.nthu.edu.tw
Liu
Yi-Wei
YW
Shy
Jow-Tsong
JT
Shaw
Sen-Yen
SY
Roussev
Rostislav V
RV
Fejer
Martin M
MM