Title :
High-power Nd-doped fiber amplifier for coherent intersatellite links
Author :
Rochat, Etienne ; Haroud, Karim ; Dändliker, René
Author_Institution :
Inst. of Microtechnol., Neuchatel Univ., Switzerland
fDate :
10/1/1999 12:00:00 AM
Abstract :
Intersatellite optical communication links require laser beams of at least 1 W of power modulated at gigahertz frequencies. They can be delivered by a master oscillator power amplifier system which consists of a stable single-frequency Nd:YAG laser, a high-speed phase modulator, and an optical amplifier. To allow coherent detection, the polarization state must be stable and controllable at the amplifier output and the phase noise must be kept low. We report here the design and the experimental results of a diode laser-pumped double clad Nd-doped fiber amplifier with polarization control, 30-dB gain, and about 1.3 W of output power
Keywords :
high-speed optical techniques; laser beams; laser noise; light polarisation; neodymium; optical fibre amplifiers; optical fibre communication; optical modulation; optical pumping; optical transmitters; phase modulation; phase noise; satellite links; 1 W; 1.3 W; 30 dB; Nd-doped fiber amplifier; amplifier output; coherent detection; coherent intersatellite links; design; diode laser-pumped double clad fiber amplifier; gain; gigahertz frequencies; high-power fiber amplifier; high-speed phase modulator; intersatellite optical communication links; laser beams; master oscillator power amplifier system; optical amplifier; output power; phase noise; polarization control; polarization state; stable single-frequency laser; Fiber lasers; High power amplifiers; Laser noise; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical fiber polarization; Optical modulation; Power lasers; Semiconductor optical amplifiers;
Journal_Title :
Quantum Electronics, IEEE Journal of
