Title :
Low-noise and agile X-band synthesizer based on optical frequency division
Author :
Rolland, Antoine ; Fortier, Tara M. ; Quinlan, Franklyn ; Baynes, Fred N. ; Campbell, Joe ; Diddams, Scott A.
Author_Institution :
Time & Freq. Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We present synthesis of low noise microwave signals from 9.5-10.5 GHz via optical frequency division and direct digital synthesis. Over the entire synthesized band we measure an absolute phase noise level of less than -100 dBc/Hz at a 1 Hz offset, corresponding to an oscillator instability of 2 × 10-15 at a 1 s averaging time.
Keywords :
microwave oscillators; microwave photonics; optical communication equipment; optical frequency conversion; optical noise; phase noise; absolute phase noise level; agile X-band synthesizer; direct digital synthesis; frequency 1 Hz; frequency 9.5 GHz to 10.5 GHz; low noise microwave signals; low-noise synthesizer; optical frequency division; oscillator instability; synthesized band; time 1 s; Microwave oscillators; Microwave photonics; Mixers; Optical pulses; Phase noise;
Conference_Titel :
Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP), 2014 International Topical Meeting on
Conference_Location :
Sapporo
DOI :
10.1109/MWP.2014.6994490
