PLC splitter (Planar Lightwave Circuit splitter) is developed based on unique silica glass waveguide process with reliable precision aligned fiber pigtail in a miniature package. It provides a low cost light distribution solution with small form factor and high reliability. The plcs devices play excellent performance in terms of low insertion loss, low pdl, high return loss and excellent uniformity over a wide wavelength range from 1260nm to 1620nm. Its working temperature is from -40℃ to +85℃. The plcs devices have standard configurations of 1x4,1x8,1x16 and 1x32,1x48, 1x64 as well as customized structures of 2x8,2x16,2x32and 2x64.