Laser-induced breakdown spectroscopy system

The STARTIN OPTRONICS® fiber-amplification and innovation experiment system measures key erbium-doped fiber amplifier (EDFA) characteristics and helps students understand EDFA principles, construction and functions. Passive components including attenuators, isolators and couplers can form an EDFA test system or be tested individually. An open, compact design uses external fiber patch cords for all measurements, providing convenient operation and protecting valuable components. It is a teaching platform for EDFAs and passive fiber optics.

Laser micromachining is a noncontact, clean, wear-free, high-precision processing technology. Improved laser reliability, computing and optical components have accelerated its development. This training workstation follows current industrial standards to teach laser-marking principles and applications. High-energy beams process predefined patterns precisely. The optical platform accepts various laser brands, with beam shaping before the processing system. Loaded scan paths and suitable process parameters control machining.

The optoelectronic imaging-device characterization and design experiment uses an open, modular structure to demonstrate linear and area-array CCD operation and common engineering tests. It teaches CCD principles and applications. CCD imaging systems are widely used in civilian, industrial and military fields. EMVA1288-based testing measures and corrects quantum efficiency, dark current, linearity, nonuniformity and spectral responsivity. Based on a general industrial inspection/calibration architecture and core components from Labsphere, the system supports inquiry-based laboratory courses in optoelectronics, physics, measurement and control.

The confocal Raman microscopy system combines microscopic morphology and molecular-structure characterization for label-free, nondestructive, high-resolution microanalysis. Five core modules include: a multicolor excitation source, with wavelengths such as 266nm, 405nm, 355nm, 532nm, 633nm, 785nm, 976nm and 1064nm; a research microscope, high-NA objective and confocal pinhole for precise focusing, three-dimensional optical sectioning and stray-light rejection; a precision spectrometer and sensitive detector such as a CCD for Raman spectra; a precision motorized stage for positioning and scanning; and software for spectral interpretation, image reconstruction and quantitative analysis. Materials applications include defect, stress and composition mapping in two-dimensional materials, semiconductor films and composites. Biomedical uses include label-free cell/tissue imaging, drug distribution and pathological changes. Geology and heritage applications include mineral identification, pigment provenance and nondestructive structure analysis. Forensics and food safety include trace evidence, additives and harmful substances. Custom systems are available.