High-power source of THz radiation based on orientation-patterned GaAs pumped by a fiber laser.
We demonstrate a new source of frequency-tunable THz wave packets based on parametric down-conversion process in orientation-patterned GaAs (OP-GaAs) that produces muW-level THz average powers at the repetition rate of 100 MHz. The OP-GaAs crystal is pumped by a compact all-fiber femtosecond laser operating at the wavelength of 2 mum. Such combination of fiber laser and OP-GaAs technologies promises a practical source of THz radiation which should be suitable for many applications including imaging and spectroscopy.
Imeshev
G
G
Fermann
M E
ME
Vodopyanov
K L
KL
Fejer
M M
MM
Yu
X
X
Harris
J S
JS
Bliss
D
D
Lynch
C
C