chanelink logo
CHANELINK
Français

New Progress in Research on Three Lattice Photonic Crystal Surface Emission Lasers at Changchun Institute of Optics and Mechanics

213
2024-03-15 13:54:26
Voir la traduction

Recently, Tong Cunzhu, the research team of the Chinese President of Science, Chunguang Institute of Mechanical Mechanics, made important progress in the research field of photonic crystal surface emitting lasers (PCSEL), proposed a three lattice structure and achieved a low threshold 1550nm PCSEL. Relevant achievements were published in Light: Science and Application vol.13, 442024, and the famous international semiconductor industry publication Semiconductor Today cited "Triple lattice photo crystal laser" A news feature report was conducted on the achievement under the title.

"The 1.55 micron range of light transmission through optical fibers has the minimum loss and the advantage of high power safety for the human eye. However, traditional lasers have poor performance due to high inter band absorption in this range. The PCSEL structure can provide strong optical feedback to overcome this problem, reduce the threshold, and improve output power."

Semiconductor Today is headquartered in the UK and is a well-known international magazine and website in the semiconductor industry. It focuses on reporting on important research progress and the latest industry trends in the international semiconductor field, and has a strong industry influence.

PCSEL is currently an important research direction in the field of semiconductor lasers, which can be widely applied in various technical fields such as communication transmission, laser pumping, optical sensing, medical equipment, etc. It is defined as the core root technology by well-known leading companies in the industry. However, due to the large device size and high threshold current, the current PCSEL cannot meet the practical application needs in fields such as high-speed optical communication. This work proposes for the first time the use of a three lattice photonic crystal structure to enhance the optical feedback in the resonant cavity, and based on this, a work on 1.55 has been prepared μ The continuous pumping of InP based PCSEL in the m-band provides a new approach for reducing the size of photonic crystal cavities and lowering device thresholds. It will play an important role in applications such as high-speed optical communication and LiDAR in the future.

Structure and performance of a three lattice photonic crystal surface emitting laser



Source: Sohu

Recommandations associées

  • The research team describes laser direct writing of single-photon optical fiber integrated multimode storage on a communication band chip

    Figure: Experimental setup.Quantum memory that relies on quantum band integration is a key component in developing quantum networks that are compatible with fiber optic communication infrastructure. Quantum engineers and information technology experts have yet to create such a high-capacity network that can form integrated multimode photonic quantum memories in communication frequency ban...

    2023-08-04
    Voir la traduction

  • LOTMAXX Announces the Launch of a Multifunctional 3D Printer with Laser Cutting Function

    LOTMAXX has announced the launch of the ET model, a new type of 3D printer that can also be used as a laser cutting machine. According to the manufacturer, the core component is a fast direct extruder with a printing speed of up to 500 millimeters per second.LOTMAXX ET features an all metal casing with a printing volume of 250 x 250 x 265 mm. According to the announcement, as a special feature, th...

    2023-11-09
    Voir la traduction

  • Researchers use liquid metal and laser ablation to create stretchable micro antennas

    Researchers have developed a new method of making micro stretchable antenna with water gel and liquid metal. These antennas can be used for wearable and flexible wireless electronic devices to provide links between devices and external systems for power transmission, data processing, and communication.Using our new manufacturing method, we have demonstrated that the length of liquid metal antennas...

    2023-09-19
    Voir la traduction

  • Mitsubishi Electric has launched a light source module for high-capacity laser optical communication in outer space

    On August 22nd, Mitsubishi Electric Corporation, a multinational electronics and electrical equipment manufacturing company, announced that it had successfully demonstrated laser optical frequency control using a new light source module, which is a key component of a high-capacity laser optical communication network to be deployed in outer space.It is reported that this module can generate 1.5 &mu...

    2023-08-24
    Voir la traduction

  • New nanophotonic circuits demonstrate the potential of quantum networks

    The Purdue University team in the United States has captured alkali metal atoms (cesium) in integrated photonic circuits, which can serve as transistors for photons (the smallest energy unit of light). These captured atoms demonstrate for the first time the potential of cold atom integrated nanophotonic circuits to construct quantum networks. The research results were published in the latest issue...

    2024-08-14
    Voir la traduction