Systems for coherent light detection are provided, including a system comprising a light source configured to generate light； a first optical assembly configured to split the light into a reference arm and a sample arm； a second optical assembly configured to illuminate a sample with light of the sample arm, thereby generating a sample signal； a third optical assembly configured to combine the sample signal with light of the reference arm, thereby generating an interference signal； and a detector assembly comprising an array of carrier injection photodetectors, the array arranged to collect the interference signal. Methods of using the systems are also provided.
