Transmissive holographic phase masks – i.e., complex phase-structures embedded into the volume of transmissive Bragg gratings – have been shown to possess a high degree of achromatism, uniquely suited for applications utilizing broadband optical-sources. Here we report on the holographic construction of their reflective counterpart in photo-thermo-refractive glass, that simultaneously provide phase incursion for spatial beam-transformation while also operating as narrowband spectral filter. Such an element was implemented in a linear cavity, wavelength-tunable, pulsed dye laser for intracavity beam-shaping.
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