You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
27 January 2017Long time ageing tests of DFB ridge laser diodes emitting at 852nm and 894nm for cesium atomic clocks
Time-frequency applications need high accuracy and high stability clocks. Compact industrial optically pumped Cesium beam standards are promising to address various demands. In this context we are developing Al-free active region distributed-feedback diode (DFB) lasers at 852nm and 894nm for, respectively, the D2 and D1 line Cesium pumping. In order to address the long term reliability of these lasers, long duration ageing tests (more than one year targeted) are being carried out for both wavelengths at 20mW and 25°C. The laser diodes have been ageing for 4950 hours and 3120 hours respectively with very low increase of the operating current.
The alert did not successfully save. Please try again later.
P. Resneau, N. von Bandel, M. Garcia, M. Lecomte, Y. Robert, E. Vinet, O. Drisse, O. Parillaud, M. Krakowski, "Long time ageing tests of DFB ridge laser diodes emitting at 852nm and 894nm for cesium atomic clocks," Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 1011132 (27 January 2017); https://doi.org/10.1117/12.2252608