澳大利亚科学家说,倍频铜蒸气激光器是去除聚合物套层,并在光纤中书写布拉格光栅的理想光源。 澳大利亚马奎里大学的一个研究小组用这种289nm的输出,剥掉光纤的聚合物套层,然后用255nm发射书写此种光栅。研究者说,298nm的波长可以去除其聚合物涂层,而不会与光纤的光敏芯产生相互作用。纤芯对此波长只有很弱的光敏性,但其聚合物套层则强烈吸收它。 此技术意味着,以后不必再用机械法或化学法去除光纤的聚合物营层,两法均与光纤直接接触,有可能损害光纤。 Australian scientists say the doubling copper vapor laser is the ideal light source to remove the polymer jacket and write Bragg gratings in the fiber. A team at the University of Marqueria in Australia used this 289nm output to strip away the polymer jacket from the fiber and then write the grating with a 255nm emission. The researchers said the 298nm wavelength removes the polymer coating without interacting with the optical core of the fiber. The core has only a very weak photosensitivity for this wavelength, but its polymer jacket absorbs it strongly. This technology means that after the mechanical method or chemical method is no longer necessary to remove the polymer layer of the optical fiber, the two methods are in direct contact with the optical fiber, it may damage the optical fiber.