Concave grating and convex mirror double dispersion spectrograph for optical network applications.

Autor: Churin EG, Bayvel P, Smirnitskii VB, Timofeev FN, Midwinter JE
Jazyk: angličtina
Zdroj: Applied optics [Appl Opt] 1997 Oct 20; Vol. 36 (30), pp. 7822-5.
DOI: 10.1364/ao.36.007822
Abstrakt: The concave grating stationary anastigmatic spectrograph has been modified into a novel retroreflective scheme by introducing a convex mirror concentric to the intermediate image. This provides double dispersion, diffraction-limited imaging of a long entrance slit, and substantial compensation of the stationary chromatic astigmatism. One can realize 140 independent multi/demultiplexers with 160 channels each simultaneously in the described device for optical network applications. Ray-tracing spot diagrams are presented.
Databáze: MEDLINE