Type of Publication: | Journal article |
Publication status: | Published |
Author: | Gliserin, Alexander; Walbran, Matt; Baum, Peter |
Year of publication: | 2013 |
Published in: | Applied Physics Letters ; 103 (2013), 3. - 031113. - ISSN 0003-6951. - eISSN 1077-3118 |
DOI (citable link): | https://dx.doi.org/10.1063/1.4815929 |
Summary: |
Thermal noise is a fundamental limitation for synchronizing microwaves to high-power lasers of low repetition rate. Here, we describe an optical enhancement scheme that concentrates the output power of a fast photodiode into a narrow range of harmonics around a microwave frequency. The scheme is entirely passive and requires no feedback or lock. Using a 5-MHz laser and a microwave at 6.2 GHz, we demonstrate an enhancement of optical-to-microwave conversion by a factor of 4000. The uncorrelated noise on time scales up to 8 min amounts to less than 4 fs, with laser pulses intense enough for pump-probe experiments of structural dynamics.
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Subject (DDC): | 530 Physics |
Refereed: | Yes |
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GLISERIN, Alexander, Matt WALBRAN, Peter BAUM, 2013. Passive optical enhancement of laser-microwave synchronization. In: Applied Physics Letters. 103(3), 031113. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4815929
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