Long-term frequency stability of three absolutely referenced lasers at 1547.8 nm located at different places which were separated by 30 km

Ulrich H.P. Fischer; Andreas Gladisch; L. Giehmann; Clemens von Helmolt; Manfred Rocks

doi:10.1117/12.208233

26 April 1995 Long-term frequency stability of three absolutely referenced lasers at 1547.8 nm located at different places which were separated by 30 km

Ulrich H.P. Fischer, Andreas Gladisch, L. Giehmann, Clemens von Helmolt, Manfred Rocks

Author Affiliations +

Proceedings Volume 2378, Laser Frequency Stabilization and Noise Reduction; (1995) https://doi.org/10.1117/12.208233
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

The relative optical frequency stabilities of three optical reference units at 1547.82 nm were examined. The reference units were located at different places in Berlin and connected via several km of optical fiber. The three optical signals were heterodyned to measure the frequency stabilities, which were better than 2*10$=-11) (2.5 KHz).

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Ulrich H.P. Fischer, Andreas Gladisch, L. Giehmann, Clemens von Helmolt, and Manfred Rocks "Long-term frequency stability of three absolutely referenced lasers at 1547.8 nm located at different places which were separated by 30 km", Proc. SPIE 2378, Laser Frequency Stabilization and Noise Reduction, (26 April 1995); https://doi.org/10.1117/12.208233

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