The single-mode planar lightwave circuit splitter(PLCS) are developed based on unique silica glass waveguide process with reliable precision aligned fiber pigtail in a miniature package, it provides a low cost light distrubition solution with small form factor and reliability. The plcs devices have high performance in terms of low insertion loss, low pdl, high return loss and excellent uniformity over a wide wavelength range from 1260nm to 1620nm and working in temperature from -40degrees to +85degrees. The PLC splitter devices have standard configurations of 1*4, 1*8, 1*16 and 1*32, 1*64, 1*128configurations, as well as customized structures of 2*2, 2*4, 2*8, 2*16, 2*32, and 2*64.