Multiplexed chirped volume Bragg gratings (Conference Presentation)

Chirped Volume Bragg Gratings (CBGs) in photo-thermo-refractive (PTR) glass allow stretching and compression of ultra-short pulses with high pulse energy and power and minimal beam distortions. PTR glass based CBGs can stretch pulses up to 1 ns while the duration of the recompressed pulses is nearly transform limited. In this work we report for the first time on multiplexed chirped volume Bragg gratings in PTR glass. These novel optical elements allow shaping of an ultrashort pulse spectral profile with a Moire pattern. Such elements can be used for comb-generation, shaping of ultrashort pulses, and output couplers.