Türkçe

Progress in the research and development of high-performance electrically pumped topology lasers in semiconductor manufacturing

487
2024-07-11 11:48:51
Çeviriyi gör

Topological laser (TL) is an ideal light source for future new optoelectronic integrated chips, designed and manufactured using topological optics principles to obtain robust single-mode lasers. Electrically pumped topology lasers have become a research hotspot due to their small size and ease of integration, but topology lasers based on electrical injection are still in the early stages of research. Therefore, it is crucial to develop design ideas and technical solutions to improve the output power of electrically pumped topology lasers.

Recently, Liu Fengqi, a researcher from the Institute of Semiconductor, Chinese Academy of Sciences, has made progress in the research and development of high-performance electrically pumped topology lasers. This study innovatively introduces the design of surface metal Dirac topological cavities (SMDCs), which are prepared on the surface metal layer to preserve the integrity of the active region, providing sufficient gain for achieving high-power output, thereby solving the problem of power improvement of electrically pumped topological lasers limited by active region etching; By utilizing the strong coupling between SMDC and the active region and optimizing the design of absorption edge and topological cavity parameters under low effective refractive index difference, robust topological interband mode operation was achieved, which was validated in the robust single-mode laser spectrum and far-field mode of topological lasers with different structural parameters.

Due to the fact that the SMDC design does not damage the active region and the SMDC structure has high surface radiation efficiency, the device achieved a single mode surface emission peak power of 150 milliwatts. In addition, the device has a vortex polarization far-field, and by introducing phase modulation, while maintaining the vortex polarization characteristics of the topological laser, a symmetrical adjustable far-field is obtained. This device is an ideal on-chip vortex polarized light source.

This work provides new ideas for the research and development of high-performance electrically pumped topology lasers, and has positive significance for promoting the development and application of high-performance electrically pumped topology lasers. The relevant research results are titled High power electrically pumped terahertz topological laser based on a surface metal Dirac vortex activity and published in Nature Communications. The research work was supported by the National Natural Science Foundation of China, the National Key R&D Program and the Youth Innovation Promotion Association of the Chinese Academy of Sciences.

Structure of Electric Pumped THz SMDC TL Device

Source: Institute of Semiconductor, Chinese Academy of Sciences

İlgili öneriler
  • Enlightra and DESY Hamburg developed an improved and scalable comb laser

    Laser technology startup Enlightra collaborates with DESY Hamburg to develop and design more stable and efficient comb lasers. This work demonstrates a microresonator with programmable synthetic reflection, providing tailored injection feedback for driving lasers. This technology has significantly improved compared to traditional self injection locking technology and can be produced using standard...

    2024-01-26
    Çeviriyi gör
  • Beijing Institute of Technology has made significant progress in the study of ultrafast carrier dynamics in optoelectronic functional crystals

    Recently, teachers and students from the Institute of Solid State Laser and Ultrafast Photonics at the School of Physics and Optoelectronic Engineering have made significant progress in the study of ultrafast carrier dynamics in optoelectronic functional crystals. The related research results are titled "Anisotropic carrier dynamics and laser fabricated luminosity patterns on oriented single cryst...

    2024-02-21
    Çeviriyi gör
  • Researchers have reinvented laser free magnetic control

    In a significant advancement in material physics, researchers from Germany and the United States have theoretically demonstrated that only extremely thin materials need to be α- RuCl3 can be placed in an optical cavity to control its magnetic state.This discovery may pave the way for new methods of controlling material properties without the use of strong lasers.The Role of Optical Vacuum W...

    2023-11-09
    Çeviriyi gör
  • Fraunhofer ISE develops a faster laser system for wafer processing

    By using a new type of laser, the processing speed of wafers can be 10 to 20 times faster than before. This is the result of a research project at the Fraunhofer Institute for Solar Systems in Germany.Researchers have developed a prototype that can use ultraviolet waves to carve the most intricate structures on silicon wafers. The new system concept enables solar cell manufacturers to perform lase...

    2023-12-23
    Çeviriyi gör
  • Internationalization Strategy Enters Stage 2.0 | HSG Hsglaser Thailand Manufacturing Base Holds Grand Opening

    At 9:00 am local time on June 26th, the opening ceremony of Hsglaser Thailand Manufacturing Base was grandly held in Bangkok Industrial Park, Thailand. This not only marks a significant expansion of Hsglaser's global strategic map, but also signifies that its international layout has officially entered a new 2.0 stage, and is another important milestone for Hsglaser to showcase its outstanding str...

    2024-06-27
    Çeviriyi gör