DocumentCode
2092221
Title
Reduction of residual amplitude modulation in Pound-locking schemes for ultra-stable oscillators
Author
Marra, G. ; Oxborrow, M. ; Henderson, D.
Author_Institution
Nat. Phys. Lab., Teddington
fYear
2004
fDate
5-7 April 2004
Firstpage
454
Lastpage
456
Abstract
Residual Amplitude Modulation (RAM) in Pound-locking schemes is known to limit the long-term frequency stability of ultra-stable oscillators. In this paper, we propose two simple yet effective techniques for reducing it. We have implemented both at X-band using commercially available components. We report experimental results for the levels of RAM reduction achieved.
Keywords
amplitude modulation; frequency stability; microwave oscillators; X-band; frequency stability; microwave oscillators; pound-locking scheme; residual amplitude modulation; ultra-stable oscillators; IQ mixer; Pound locking; residual amplitude modulation; sapphire resonator; zero-crossing detection;
fLanguage
English
Publisher
iet
Conference_Titel
Frequency and Time Forum, 2004. EFTF 2004. 18th European
Conference_Location
Guildford
ISSN
0537-9989
Print_ISBN
0-86341-384-6
Type
conf
Filename
5074997
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