Title :
Pulse energy gain saturation in subpico- and picosecond pulse amplification by a traveling-wave semiconductor laser amplifier
Author :
Saitoh, Tadashi ; Itoh, Hiroki ; Noguchi, Yoshio ; Sudo, Shoichi ; Mukai, Takaaki
Author_Institution :
NTT Basic Res. Lab., Tokyo, Japan
Abstract :
Optical pulses with durations ranging from 0.49 to 21 ps are amplified by a traveling-wave semiconductor laser amplifier. The pulse energy gain is determined by pulse energy only. The dependence of pulse energy gain on output pulse energy does not change in the pulse duration range. The saturation characteristics are successfully explained by a four-level system model.<>
Keywords :
high-speed optical techniques; optical saturation; semiconductor junction lasers; 0.49 to 21 ps; four-level system model; output pulse energy; picosecond pulse amplification; pulse energy gain saturation; saturation characteristics; traveling-wave semiconductor laser amplifier; Coatings; Laser modes; Optical fiber polarization; Optical pulse generation; Optical pulses; Optical saturation; Pulse amplifiers; Pulse measurements; Semiconductor lasers; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
