According to foreign media reports, researchers from Lionel X International, a MESA + nanotechnology and chip manufacturing company at the University of Twente in the Netherlands, said it has developed the world's lowest on-chip laser diode with a narrow line width.
The tunable indium phosphide / silicon nitride (InP-Si3N4) hybrid photon integrated laser has an inherent laser linewidth of 290 Hz and a spectral coverage of 81 nm.
Klaus Boller, team leader at Twente University, notes that the laser has ten times more coherence than any other on-chip laser (ten times lower line width).
The researchers said the new lasers will lead to a wide range of applications, including mobile antennas on cellphone poles controlling 5G mobile internet, faster fiber optic data transmission, and more accurate GPS systems and monitoring of buildings and Bridge structural integrity of the sensor. (Text / Oscar translation)
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