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Methods and evaluation of frequency aging in distributed-feedback laser diodes for rubidium atomic clocks
Date de parution
2011
In
Optics Letters
Vol.
17
No
36
De la page
3311
A la page
3313
Résumé
Distributed-feedback laser diodes emitting at 780nm have been evaluated, with respect to the aging of the injection current required for reaching the rubidium D2 resonance line. Results obtained for lasers operating in air and in vacuum for 9 months are reported. When operated at constant temperature, the laser current required for emission at the wavelength of the desired atomic resonance is found to decrease by 50 to 80 uA per month. The impact of this result on the lifetime and long-term performances of laser-pumped rubidium atomic clocks is discussed.
© 2011 Optical Society of America OCIS codes: 140.2020, 350.4800.
© 2011 Optical Society of America OCIS codes: 140.2020, 350.4800.
Identifiants
Type de publication
journal article
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