High-contrast terawatt chirped-pulse-amplification laser that uses a 1-ps Nd:glass oscillator.
We have developed a fiberless 1-TW all-Nd:glass chirped-pulse-amplification laser system that uses high-contrast 0.8-1.4-ps pulses produced directly from a Nd:glass feedback-controlled oscillator. Employing grating-only expansion and compression, the system produces clean (~10(7) contrast ratio) 1-J, 1- 1.4-ps recompressed pulses without added pulse cleaning. Clean microjoule-energy pulses from the oscillator require less subsequent amplification than cw oscillator schemes, thereby minimizing gain-bandwidth narrowing and offering improved contrast with amplified stimulated emission background.
R S
RS
Marjoribanks
F W
FW
Budnik
L
L
Zhao
G
G
Kulcsár
M
M
Stanier
J
J
Mihaychuk