Back-side coated chirped mirrors for dispersion compensation over one octave

Summary form only given. We introduce a novel chirped mirror design technique to further extend the dispersion compensation range and to reduce detrimental dispersion oscillations. The fundamental idea behind this new approach is to suppress unwanted reflections at the top of the mirror stack by coating the mirror structure in reverse on the back side of a substrate with an index identical to either of the coating materials. Our technique works ideally if the double-chirp design technique is employed for the layers of the mirror stack.