Title :
1047-nm master oscillator power amplifier free-space optical communications laser transmitter
Author :
Krainak, Michael A. ; Yu, Anthony W.
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD, USA
fDate :
1/1/1996 12:00:00 AM
Abstract :
We report on the performance of a 1047-nm laser diode master oscillator (MO) diode pumped Nd:YLF power amplifier (PA) laser transmitter in a 50-Mbps quaternary pulse position modulation (Q-PPM) free-space optical direct detection communications experiment. The transmitter produced greater than 1 W of 1047-nm average optical power. At optical transmitter powers up to 0.2 W, we achieved nearly the same communications performance (~210 photons/b at 10-6 bit-error rate) using the 1047-nm MOPA transmitter as with the 50 mW laser diode alone. We relied on an external-cavity grating feedback scheme for the 1047-nm laser diode MO to achieve this communications performance
Keywords :
neodymium; optical modulation; optical transmitters; power amplifiers; pulse position modulation; solid lasers; 0.2 to 1 W; 1047 nm; 50 Mbit/s; LiYF4:Nd; MOPA; YLF:Nd; direct detection; external-cavity grating feedback; free-space optical communications; laser diode pumped Nd:YLF; laser transmitter; master oscillator power amplifier; quaternary pulse position modulation; Optical amplifiers; Optical feedback; Optical modulation; Optical pumping; Optical transmitters; Oscillators; Power amplifiers; Pulse amplifiers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
