Generalized grating equation for virtually-imaged phased-array spectral dispersers

Appl Opt. 2003 Jul 10;42(20):4152-5. doi: 10.1364/ao.42.004152.


The virtually-imaged phased array (VIPA) is a side-entrance etalon with potential application as a high-resolution spectral disperser for wavelength division multiplexing. Here we present an approximate analytical spectral dispersion law for the VIPA, which we confirm experimentally.