Ελληνικά

The research team at the University of Electronic Science and Technology of China has developed three innovative photonic devices

799
2025-05-30 10:55:47
Δείτε τη μετάφραση

Recently, Professor Nie Mingming from the Key Laboratory of Fiber Optic Sensing and Communication at the School of Information and Communication Engineering, University of Electronic Science and Technology of China, in collaboration with the University of Colorado Boulder, published a research paper titled "Cross polarized stimulated Brillouin scattering empowered photonics" in the top international journal Nature Photonics. For the first time, the cross polarized Brillouin gain characteristics in lithium niobate crystals were systematically revealed, and their efficient coupling mechanism with second-order nonlinearity was demonstrated. As a result, three innovative photonic devices were successfully developed, which can provide new solutions for next-generation optical communication, precision measurement, and quantum technology.

The strong gain characteristics of the cross polarized stimulated Brillouin effect in lithium niobate, combined with its ability to control multiple physical fields such as thermo optics and electro-optic, can provide a new design dimension for new light sources and photonic integrated chips. Three innovative devices have been researched and implemented. (1) Reconfigurable stimulated Brillouin laser: By utilizing the birefringence thermal optical effect and cross polarization stimulated Brillouin effect of lithium niobate crystal, it breaks through the limitation of traditional stimulated Brillouin lasers that are difficult to tune due to fixed cavity length, and achieves sub hertz narrow linewidth laser output with arbitrary wavelength adjustment. (2) Efficient mode converter: For the first time, the Brillouin enhanced four wave mixing effect inside the cavity has been achieved, and a multi-dimensional high-efficiency mode conversion device for polarization, transverse mode, and longitudinal mode has been developed. (3) Brillouin second-order laser and frequency comb: By utilizing the synergistic effect of cross polarization Brillouin effect and second-order nonlinearity, the near-infrared and visible dual band laser and frequency comb pumped by intracavity Brillouin laser have been achieved for the first time. With the maturity of thin-film lithium niobate photonics integration technology, it is expected to use the revealed cross polarization stimulated Brillouin effect to develop more innovative photonics devices in addition to the above-mentioned devices, achieve miniaturization and low-power operation on the chip, and bring changes to cutting-edge applications such as optical atomic clocks, high-precision gyroscopes, optical communication, and optical neural networks.

This study was supported by the National Natural Science Foundation of China and the Top Basic Research Achievement Cultivation Program of the University of Electronic Science and Technology of China.

Professor Nie Mingming from the University of Electronic Science and Technology of China is the first author and co corresponding author of the paper, while Professor Shu Wei Huang from the University of Colorado Boulder is the co corresponding author of the paper.

Source: Opticsky

Σχετικές προτάσεις
  • IPG launches dual beam fiber laser for additive manufacturing applications

    Recently, American fiber laser giant IPG Photonics announced the launch of a new laser series specifically designed for the additive manufacturing field.The highlight of this series of lasers lies in its integration of IPG's unique dual beam technology, which can independently regulate and simultaneously emit core and ring beams, setting a new benchmark in accuracy, efficiency, and reliability.Ba...

    2024-11-25
    Δείτε τη μετάφραση
  • TSMC's first European wafer fab receives € 5 billion subsidy for construction

    Recently, TSMC held a groundbreaking ceremony for its first European 12 inch wafer fab. It is reported that the European Union has approved Germany to provide 5 billion euros in subsidies for the factory.It is understood that TSMC's 12 inch wafer fab is located in Dresden, Germany and is called "European Semiconductor Manufacturing Company (ESMC)". In August 2023, TSMC announced a partnership with...

    2024-08-26
    Δείτε τη μετάφραση
  • AEROTECH releases updated AUTOMATION1 motion control platform

    Aerotech is a global leader in precision motion control and automation, and every release has made the Automation1 motion control platform even stronger and more user-friendly. Version 2.5 brings TCP socket interface (test version), Automation1 MachineApps HMI development, new auxiliary module for motor settings, and improved machine settings for galvanometer laser scanning heads.Automation1 conti...

    2023-08-14
    Δείτε τη μετάφραση
  • Devices based on optical thermodynamics can guide light without the need for switches

    Researchers from Ming Hsieh's Department of Electrical and Computer Engineering at the University of Southern California have designed the first optical device that follows the emerging optical thermodynamic framework.The work, reported in Nature Photonics, introduces a new way of routing light in nonlinear systems—meaning systems that do not require switches, external control, or digital addressi...

    10-15
    Δείτε τη μετάφραση
  • NASA will demonstrate laser communications on the space station to improve space communications capabilities

    Recently, in order to improve the National Aeronautics and Space Administration (NASA) space communications capabilities, NASA plans to send a technology demonstration called "Integrated LCRD Low Earth Orbit User Modem and Amplifier Terminal (ILLUMA-T)" to the space station in 2023.ILLUMA-T and the Laser Communications Relay Demonstration (LCRD), launched in December 2021, will together comp...

    2023-09-04
    Δείτε τη μετάφραση