S. J. L Inc. is located in China. The company has a facility covering more than 5000 square meters in a high-tech park.

S. J. L is uniquely positioned in the laser industry due to our professional products and services, coupled with our vertically integrated manufacturing processes. S. J. L manufactures virtually all types of ND: YAG crystals, including ND: YAG\ND: CE: YAG\Cr4+: YAG \undoped YAG\Yb: YAG\Er: YAG\ND: YVO4\KTP\KTA\RTP\BBO\BIBO and Sapphire. S. J. L's vertical integration ensures the quality of crystal products by controlling the processes from starting materials through crystal growth, fabrication, coating, and verification. S. J. L is a full service manufacturing company offering excellent customer service as well as responsive technical and engineering services.

FACTORY

Crystal growth

S. J. L grows large diameter ND: YAG(Neodymium doped Yttrium Aluminum Garnet) crystals using the Czochralski technique. To make sure that each S. J. L crystal performs to our customer's specifications, we use high quality starting materials for crystal growth, and strict process control techniques such as whole boule interferometry, transmission spectroscopy and fluorescence lifetime method for precise measurement of ND concentration. With full documentation for every shipment, S. J. L maintains traceability on all materials in the entire process, from finished laser materials back to starting oxides. State-of-the-art fabrication and coating processes enable S. J. L to provide its customers consistently reliable finished products.

On Sapphire products, at present we can produce over 2000 kinds and specifications of products. Products mainly include cup jewels, Jewel Bearings, Sapphire Substrates, Sapphire Windows, Hole Jewel, Sapphire and Ruby Orifices, Sapphire Rods, Assemblies Jewels, Nozzle Jewels, Sapphire Rectangle Windows, Ruby Balls Measuring Head, Sapphire Balls & Ruby Balls, Optical Balls Lenses & Hemispheres, Jewel Bearings, Check Valves, Sapphire Ball & Seat, Special Jewels, Ceramic Component. These products are chiefly applied to accurate Measuring Instrument, Machinery, Ultra-High Pressure Water Jet, Hematology Instrumentation, Ink Jet Printing, Flow Control, Liquid Cutting, Laser Technology, Circuit Substrates, Sensor, Optical Fiber Communication, Textile, Medical Science, War Industry and Aero-Space, etc.