Researchers have shown, for the first time, that transmission of ultrastable optical signals from optical clocks across tens ...

An optical frequency comb consists of a series of evenly ... covering a 12.5 THz C/L-band and containing over 55 optical carriers with a channel spacing of 115 GHz. The optical carrier-to-noise ...

extremely efficient optical parametric amplification and frequency conversion over S, C, and L optical communication bands are achieved using this chip. Modern communication networks rely on ...

Frequency stabilization of lasers to optical reference cavities is a well-established method for achieving superior stability ...

Lithium niobate (LiNbO 3) intensity modulators are designed for modulation frequencies larger than 30GHz. The X-cut design of the Mach-Zehnder modulators provides an unmatched stability in a wide ...

In the photonic synthetic frequency dimension, existing band structure measurements are ... and potentially provide inspirations for optical devices with innovative functionalities." ...

To measure the frequency stability of this optical clock, two identical diode lasers were frequency-stabilized onto enhanced-absorption sub-Doppler resonances. The influence of key parameters on ...

The optical chip creates a frequency comb, splitting the laser into the full spectrum of light and producing “hundreds” of distinct frequencies, or colors, according to a DTU press release.

Physicists have transferred time and frequency information over a distance of more than 100 km in free space, far exceeding the previous record. The technique, which makes it possible to synchronize ...

Radio frequency (RF) refers to the part of the electromagnetic spectrum where electromagnetic waves can be generated by alternating current fed to an antenna. It spans from around 3 kHz to 300 GHz.