ELISA: A cryocooled 10 GHz oscillator with 10−15 frequency stability

ELISA: a cryocooled 10 GHz oscillator with 10(-15) frequency stability.

This article reports the design, the breadboarding, and the validation of an ultrastable cryogenic sapphire oscillator operated in an autonomous cryocooler. The objective of this project was to demonstrate the feasibility of a frequency stability of 3x10(-15) between 1 and 1000 s for the European Space Agency deep space stations. This represents the lowest fractional frequency instability ever ...

Cryocooled sapphire oscillator with ultrahigh stability

We present design details and test results for the first short-term frequency standard to achieve ultra-high stability (oy < without he use of liquid helium. Technical features include vibration isolation by atmospheric helium gas and a new sapphire resonator design with adjustable compensation operating at 8-10K.

Mode-resolved 10-GHz frequency comb from a femtosecond optical parametric oscillator.

We report a 10-GHz frequency comb generated by filtering a 333.3-MHz OPO frequency comb with a Fabry-Perot (FP) cavity, which was directly stabilized to the incident fundamental comb. This result is supported by a detailed analysis of the Vernier-effect-induced multiple peaks in the transmitted comb power as the FP cavity spacing is detuned. Modes of the generated 10-GHz comb were clearly resol...

10-GHz wide tuning-range linear voltage- controlled oscillator

10-GHz self-referenced optical frequency comb.

The femtosecond laser-based frequency comb has played a key role in high-precision optical frequency metrology for a decade. Although often referred to as a precise optical frequency ruler, its tick marks are in fact too densely spaced for direct observation and individual use, limiting important applications in spectroscopy, astronomy, and ultrafast electromagnetic waveform control. We report ...