Patent ID: 6081379
Filing Date: 2000-06-27
Classification: G02B,H01S

Abstract:
A negative group-delay-dispersion mirror, comprising:a highly reflective quarter-wave multilayer reflector;two spaced-apart interferentially coupled Gires-Tournois interferometer cavities surmounting said highly reflective quarter-wave multilayer reflector and forming a single monolithic multilayer structure;said quarter-wave multilayer reflector having a characteristic reflection bandwidth; andthe negative group-delay-dispersion mirror having a reflectivity greater than 99 percent and a selected negative group delay dispersion as a function of wavelength over a selected range of wavelengths of about 60 nanometers or greater within said characteristic reflection bandwidth, said selected negative group delay dispersion being one of increasing generally linearly, decreasing generally linearly, and substantially constant over said selected range of wavelengths.