chanelink logo
CHANELINK
English

Germany has developed direct laser welding technology to achieve adhesive free connection from fiber to chip

1106
2023-08-22 14:51:18
See translation

Recently, researchers and their partners from the Fraunhofer Institute for Reliability and Microstructure (IZM) in Germany announced the successful development of a laser welding technology that can efficiently fix optical fibers onto photonic integrated circuits (PICs) without the need for adhesive bonding.

This technology is developed in response to biophoton sensing technology, mainly utilizing a miniaturized photonic integrated circuit (PIC) system with highly stable fiber connections.

(Image source: Fraunhofer IZM)
In the past, adhesive was often used in fiber optic interconnections of photonic integrated circuits. However, in the long run, this solution will lead to the occurrence of optical degradation, ultimately resulting in optical transmission loss. The softness of the adhesive can cause the position of the component to change over time and create an interference point between the two layers of glass. As the adhesive ages, this can lead to signal attenuation and brittle connections.

Due to the different volumes of glass fiber and substrate, the heat capacity of the two parts to be joined is not equal, resulting in different heating and cooling behaviors. If there is no appropriate compensation for the difference, it may lead to deformation and cracks during the cooling process. To address this issue, the team used a separate adjustable laser to uniformly preheat the substrate, allowing the melting stage of the fiber and substrate to occur simultaneously.

The technology developed by this project is no longer limited to the experimental setup stage, and the system they developed is designed for industrial environments. The Fraunhofer Institute for Reliability and Microstructure (IZM) in Germany, in collaboration with Finicontec Service, implemented this technology process in automation systems and found that it has high repeatability and scalability. It is equipped with thermal process monitoring up to 1300 ℃, accurate to 1 μ M's positioning system, as well as imaging recognition process and control software.

The potential of high automation enables customers to use photonic integrated circuits (PICs) with maximum coupling efficiency. Industrial integration means a leap in the field of biophotonics applications, as well as quantum communication and high-performance photonics, "G ó mez said.

Source: OFweek

Related Recommendations

  • The influence of laser beam drift on SLM thin-walled TC11 specimens at high scanning speed

    AbstractDue to the width of the laser melt pool and the sintering effect on the surrounding powder, the experimental size of the selective laser melting (SLM) sample will be larger than the design size, which will greatly affect the dimensional accuracy and surface quality of the thin-walled sample. In order to obtain SLM thin-walled TC11 specimens with precise dimensions, an orthogonal experiment...

    02-24
    See translation

  • The United States promotes the development of next-generation EUV lithography technology

    LLNL has long been a pioneer in the development of EUV lithography technology.A laboratory located in California will lay the foundation for the next development of extreme ultraviolet (EUV) lithography technology. The project is led by Lawrence Livermore National Laboratory (LLNL) and aims to promote the next development of EUV lithography technology, centered around the laboratory's developed dr...

    01-06
    See translation

  • San’an and Inari acquire Lumileds for $239 million

    San’an Optoelectronics, an LED chip manufacturer, based in China, and Inari Amertron Berhad, a Malaysian company that provides outsourced semiconductor assembly and test (“OSAT”) services to the semiconductor industry, are to acquire Lumileds Holding B.V. and its European and Asian subsidiaries (“Lumileds International”). Lumileds is based in Schiphol, The Netherlands.The all-cash deal is valued a...

    08-13
    See translation

  • 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
    See translation

  • Due to breakthroughs in microchip photonics, microwave signals have now become very accurate

    Zhao Yun/Columbia Engineering Company provided an advanced schematic of a photonic integrated chip, which aims to convert high-frequency signals into low-frequency signals using all optical frequency division.Scientists have built a small all optical device with the lowest microwave noise ever recorded on integrated chips.In order to improve the performance of electronic devices used for global n...

    2024-04-01
    See translation