Abstract

An optical differentiation in a regenerative amplifier with a temperature-tuned volume Bragg grating (VBG) as an intracavity spectral filter is demonstrated for the first time, to the author's knowledge. 12 mJ approximately 150 ps pulses with a TEM(00) beam profile have been generated at the 5 Hz repetition rate in the nanosecond-pulse-seeded regenerative amplifier with a VBG that is temperature detuned from the central wavelength.

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