InGaAs photodiode is working from 800-1700nm. Its sensitive area range is from 75um, 300um, 500um, 1000um and 1500um and 2000um. Its type is with universal adapter or interchangeable adapter and SMF pigtailed. Si Photodiode is working from 400-1100nm. This Si series include Si PIN Large Sensitive Photo Diode, Fast Si PIN photo diode, 5 Quadrant Si PIN and etc.