signal processing circuit for PSD

hi.. i will build lazer distance measurement. in this project, i decided to use one-dimensional PSD (Position Sensitive Detector) to detect laser spot light. but i need help to build signal processing circuit for PSD.

note: PSD outputs two currents (I1 and I2). i will process these currents..

How about a link to the data sheet for PSD?

Ken

data sheet for PSD 3932 :

**broken link removed**