Abstract Element Six recently announced that the high-power laser project jointly developed by the University of Strathclyde has made significant progress: the world's first tunable diamond Raman laser and continuous wave laser have been successfully attacked; Applied the elemental six company's synthetic diamond...
Element Six recently announced that the high-power laser project jointly developed by the University of Strathclyde has made significant progress: the world's first tunable diamond Raman laser and continuous wave laser have been successfully attacked; this technology is applied Elemental Six's synthetic diamond material. This technology once again demonstrates the superiority of synthetic diamond in solid-state laser engineering applications, including applications in some internal cavity devices.

Founded in 1796, Strathclyde University is the first in the science field in the field of photonics. As early as 2006, Strathclyde University collaborated with Element Six to produce high-performance optics developed by Element Six. Materials to aid in the testing and development of high power lasers. Synthetic diamond is selected as an auxiliary material due to its unique properties. In the experiment, the higher thermal conductivity of diamond and the higher transparency in a wide range of wavelengths are favored by scientists.

Senior researcher Dr. Alan Kemp said , “The continuous operation and tunable Raman lasers have been tested with other materials before, but the thermal conductivity of these materials is not high, which greatly limits the output power of the laser. With superior thermal conductivity, diamond lasers can double the output power in the band where ordinary lasers are difficult to output power. Given this finding, we believe that diamonds are used in solid-state laser engineering and even in some particularly advanced technical fields. It can be applied. This is also the biggest motivation for us to continue our research cooperation with Element Six in the future."

The research team at the University of Strathclyde implemented Raman laser operation by placing the synthetic diamond in a laser cavity. Since the light loss rate of the diamond produced by the element six is ​​very low, the worker does not need to be assisted by the high-intensity pulsed laser during the operation, thereby directly implementing the Raman laser. The elimination of the high-intensity pulsed laser is omitted, and those devices that have higher accuracy requirements for continuously operating lasers can technically achieve a big leap. Spectral detection techniques such as trace gas and difficult ophthalmic laser surgery will greatly benefit from the breakthrough of this laser technology.

The staff uses a tunable semiconductor laser disk to adjust the color of the Raman laser, which is also thermally dissipated by Element Six's single crystal diamond heatsink to output multiple tunable power; A tunable diamond Raman laser can be realized by embedding a piece of diamond into the cavity of the laser.

“We are very pleased to be able to work with top research institutions such as the University of Strathclyde for eight years,” said Adrian Wilson, Head of Element Six Technology. “The synthetic diamonds we developed have low light loss and birefringence. This feature has provided important help to the University of Strathclyde research; it is with the joint efforts of both parties that we have achieved a breakthrough in Raman diamond laser technology. We look forward to the future with the University of Strathclyde Continue to work together to develop more similar technologies." (Compiled from "World's first continuous-wave, tunable diamond Raman lasers")

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