Using spatial hole burning, the high frequency signal is just the difference between two light colors in the laser. That can be 5GHz, 10GHz, or 1,000GHz depending on how the laser is constructed.

Tuning in: interfering laser light could soon be used to generate terahertz signals. (Courtesy: iStock/arttanja) A new type of microwave radio transmitter built by physicists in the US could lead to ...

Laser communications use infrared light instead of radio waves. Since infrared light has a much higher frequency, way more data can be encoded per second. This enables a "space broadband" that ...

The transmitter features wavelength tunability of up to 20 channels spaced at 50-GHz intervals. Based on electroabsorptive modulated laser (EML) technology, the transmitter combines a tunable laser ...

News Release 25-Apr-2019 The first laser radio transmitter Researchers transmit data via a semiconductor laser, opening the door to ultra-high-speed Wi-Fi Peer-Reviewed Publication ...

Laser communications transmitter to enable NASA spacecraft to transmit data at accelerated speeds over a distance of 200 million miles The CACI laser transmitter, shown here, will be used for the ...

Researchers have, for the first time, used a semiconductor laser to send and receive radio signals. The hybrid electronic-photonic device uses a laser to extract and transmit microwave signals ...

Technavio has published a new market research report on the global laser level transmitters market from 2018-2022. (Graphic: Business Wire) Full Size Small Preview Thumbnail Full Size Small ...

It’s the “first laser-radio transmitter,” Harvard University proclaims of its invention in an article on its John A. Paulson School of Engineering and Applied Science (SEAS) website.

Published April 2022. Find the Harvard summary article here. Amirhassan Shams-Ansari, Dylan Renaud, Rebecca Cheng, Linbo Shao, Lingyan He, Di Zhu, Mengjie Yu, Hannah R. Grant, Leif Johansson, Mian ...

The experiment – witnessed by a group of attendees who could not actually perceive the multi-kilowatt infrared beam – comprises two 4m (13ft)-high towers, a 2kW laser transmitter, a receiver featuring ...

The laser communications transmitter for the Psyche spacecraft is a key component of the Deep Space Optical Communications (DSOC) package that is designed to transmit data in photon packets from ...