English

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

1094
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
  • By 2030, the global market size of medical laser fiber will reach 1.369 billion US dollars

    According to a recent report by Congic Business Intelligence, the global medical laser fiber market is expected to grow significantly at a compound annual growth rate of 6.9% from 2023 to 2030. This growth is attributed to the increasing popularity of minimally invasive surgery worldwide.The medical laser fiber market is expected to expand strongly, reaching $1.369 billion by 2030. The market is v...

    2023-10-27
    See translation
  • Xi'an Institute of Optics and Fine Mechanics has made new progress in the research of attosecond high spatiotemporal resolution imaging

    The attosecond light source has the characteristics of ultra short pulse width, short wavelength, high coherence, and high-precision synchronous control, and has extremely high potential for application in the field of ultrafast imaging. Especially when the attosecond light source reaches the "water window" band, oxygen and hydrogen atoms have weak absorption of X-rays in this band, so water is re...

    2024-10-14
    See translation
  • Coherent's total fiscal 2023 revenue was $5.16 billion, with laser business accounting for 29 percent

    On August 16, Coherent, an American laser system solutions provider, announced its fiscal year 2023 and fourth quarter results for the year ended June 30, 2023. This is also the first annual report released after the merger of II-VI and Coherent.Fiscal year 2023 revenueCoherent reported revenue of $5.16 billion for the full fiscal year 2023, up 56% year over year.By business unit, the Networking b...

    2023-08-17
    See translation
  • The fiber laser system overcomes outdated issues through a PC based EtherCAT control platform

    In order to maintain relevance and success, companies with a long history must respect their past while not ignoring the future. This is the method adopted by Cincinnati Corporation (CI), a metal processing machinery manufacturer based in Harrison, Ohio, since its establishment in the late 1890s.The company is carefully considering technological changes. Incorrect selection of control hardware, ne...

    2024-05-25
    See translation
  • GeoCue introduces three new TrueView 3D imaging systems

    Earlier this month, GeoCue, a liDAR mapping hardware and software provider, announced the launch of three new products for its TrueView 3D imaging system. These new systems combine laser scanning and high-resolution imaging, including the TV625, TV680 and TV680LR. All three systems are NDAA-compliant.All three systems are designed to be used in conjunction with drones, and the company note...

    2023-08-04
    See translation