Raysung 's Athermal Packaged FBG is a low-loss reflective optical filter with wavelength drift of less than
1.5 pm /°C, Negative thermal expansion material wasassembled on the FBG package for temperature-compensation. The athermal packaged FBG is much less temperature sensitive than normal FBG and is suitable for applications where optical filter with high thermal stability is required.

Features of Athermal Packaged FBG

--Low insertion loss and crosstalk

--Low dispersion                    

--Excellent long-term stability

--Superior proof strengths

Applications of Athermal Packaged FBG

--DWDM system 50/100/200 GHz in fiber narrowband signal filtering

--OADM module, mux/demux

Specification of Athermal Packaged FBG

About Raysung Photonics Inc:

Raysung photonics located in the export processing zone of Xi'an, China, is specialized in manufacturing FBG, lensed fiber and FBG filter for FTTH. Besides those three main products, Raysung can also manufacture wavelength stabilizer, DWDM FBG filter, chirped fiber grating, long period grating, custom fiber grating and so on. In addition, Raysung has ability to develop and produce special gratings for sensor. The company is committed to the research, design and producing of those products and it is the only one manufacture which has the capacity to volume- producing all sorts of fiber grating in China. Moreover, Raysung is one of the only manufactures in the world who has the capacity to manufacture the type of optical fiber which incorporates FBG and lensed fiber. Raysung's products are widely used in aerospace, construction industry, coal industry etc. The company's professional teams have rich experience in photoelectric area and we have advanced technology and equipment. This allows us to provide our customers with high-quality products and optimized proposals.

In 2006, Raysung completed ISO9001: 2000 and ISO14001 certification and also obtained several patent rights. The materials of our products accord with ROHS criterion. Raysung's products are always superior in quality and competitive in price.