The circuit has been soldered(refer entries 2399) and the noise for Sallen Key was analyzed
Attachment 1: Circuit Diagram of Sallen Key low pass filter( cut-off= 1Hz)
Attachment 2: Transfer Function of sallen key. The Frequency response Measurement was done using the Swept Sine group. The input range was -50dBVpk.
Attachment 3: Noise comparison between zero and SR785 measurements. The noise matches the simulated results to a great extent and also it's less noisy so can successfully be used to bias the photodiodes(1V).
Attachment 4: Zip File