New technique using Raman scattering can dramatically improve laser linewidth for better quantum computing

Large mode volume integrated Brillouin lasers for scalable ultra-low linewidth and high power

Ultra-low linewidth, high output power, integrated single mode lasers, that operate from the visible to shortwave-IR, are critical for future compact, portable, precision applications. Achieving this performance in a CMOS compatible integration platform that can also enable scaling to lower linewidths and higher powers remains a key challenge. We report demonstration of a class of integrated laser with a 31 mHz instantaneous linewidth, 41 mW out…

New technique using Raman scattering can dramatically improve laser linewidth for better quantum computing

Macquarie University researchers have demonstrated a technique to dramatically narrow the linewidth of a laser beam by a factor of over ten thousand—a discovery that could revolutionize quantum computing, atomic clocks and gravitational wave detection.

Pushing the limit of pulse duration in Q-switched solid-state lasers with high gain

We demonstrate a 1064 nm, mJ-level, sub-nanosecond end-pumped Q-switched laser with weak feedback and high gain. We obtain the pulse duration of 449.7…

BluGlass showcases GaN lasers at ICNS-15

ASX-listed BluGlass (ASX:BLG) has unveiled major performance improvements in its gallium nitride (GaN) laser technology during an invited presentation at the International Congress on Nitride Semiconductors (ICNS‑15) in Malmö, Sweden. The company highlighted a 16% year-on-year increase in multi-mode power conversion efficiency, reaching 43%, and showcased a narrow-linewidth 685kHz distributed feedback (DFB) laser, extending the application reach…

Low-noise laser powers next-gen quantum technologies

Ultra-low noise lasers deliver industry-leading frequency stability for scalable quantum computing and secure communications. The post Low-noise laser powers next-gen quantum technologies appeared first on eeNews Europe.

TU Wien and Harvard create new kind of laser

15.07.2025 - A team at Harvard and TU Wien have invented a new tunable laser that uses a series of rings to smoothly emit many light wavelengths from a single chip.