A laser system built on principles of supersymmetry

A team of researchers from the University of Central Florida and Michigan Technological University has developed a laser system concept built on the principles of supersymmetry. In their paper published in the journal Science, the group reports that their system is meant to solve the problem of producing more light with a compact laser system….

Research team develops a high-performance quantum dot mode-locked laser on silicon

Ten years into the future. That’s about how far UC Santa Barbara electrical and computer engineering professor John Bowers and his research team are reaching with the recent development of their mode-locked quantum dot lasers on silicon. It’s technology that not only can massively increase the data transmission capacity of data centers, telecommunications companies and…

Fiber laser system emits exceptionally pure light

Recently researchers from Massachusetts have developed a novel fiber laser system that has a compact size and is able to emit light with a high level of spectral purity. Moreover, the fiber laser’s light remains unchanged to environmental conditions. The researchers confirm that the novel laser system will be useful for future scientific applications that…

New nano-sized optical fiber determines waves from live cells

Recently, researchers from California have developed a totally new nanofiber device that is almost 100 times thinner than a human hair. Moreover, the nano-sized optical fiber is highly sensitive and is able to determine forces down to 160 femtonewtons that are ten trillion times smaller than a newton. Thus, the researchers put the optical fibers…

Scientists move quantum optic networks a step closer to reality

Scientists have moved quantum optic networks a step closer to reality. The ability to precisely control the interactions of light and matter at the nanoscale could help such a network transmit larger amounts of data more quickly and securely than an electrical network. A team of researchers at the U.S. Department of Energy’s (DOE) Argonne…

A new home for optical solitons

Laser physicists based at the Laboratory for Attosecond Physics run by the Max Planck Institute of Quantum Optics and the Ludwig-Maximilian University have, for the first time, generated dissipative solitons in passive, free-space resonators. Solitons are the most stable of all waves. Under conditions that result in the dispersion of all other waveforms, a soliton…

All-photonic quantum repeaters could lead to a faster, more secure global quantum internet

Engineering researchers have demonstrated proof-of-principle for a device that could serve as the backbone of a future quantum Internet. University of Toronto Engineering professor Hoi-Kwong Lo and his collaborators have developed a prototype for a key element for all-photonic quantum repeaters, a critical step in long-distance quantum communication. A quantum Internet is the ‘Holy Grail’…

New technology uses lasers to transmit audible messages to specific people

Researchers have demonstrated that a laser can transmit an audible message to a person without any type of receiver equipment. The ability to send highly targeted audio signals over the air could be used to communicate across noisy rooms or warn individuals of a dangerous situation such as an active shooter. In The Optical Society…

Terahertz laser for sensing and imaging outperforms its predecessors

A terahertz laser designed by MIT researchers is the first to reach three key performance goals at once — high constant power, tight beam pattern, and broad electric frequency tuning — and could thus be valuable for a wide range of applications in chemical sensing and imaging. The optimized laser can be used to detect…

Flying focus: Controlling lasers through time and space

Scientists have produced an extremely bright spot of light that can travel at any speed—including faster than the speed of light. Researchers have found a way to use this concept, called “flying focus,” to move an intense laser focal point over long distances at any speed. Their technique includes capturing some of the fastest movies ever recorded….