Amplified spontaneous emission and gain-saturation nonlinearity in high-gain optical amplifiers: The biased amplifier

Journal Article · Sat Jan 01 00:00:00 EST 1977 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.323364· OSTI ID:7342964

Moreno, J B; Fisk, G A; Hoffman, J M

The systematics of amplified spontaneous emission and gain-saturation nonlinearity in high-gain optical amplifiers are explored. It is shown that of all the variations of the several dimensionless parameters that occur, only a reduction of the small-signal gain-length product can simultaneously minimize these two problems. Furthermore, of the various possible changes of the dimensional quantities that make up the gain-length product, increasing the saturation intensity achieves the highest overall gain for a given measure of distortion, and the least distortion for a given value of overall gain. This leads to the concept of the biased amplifier, one version of which is then treated in detail numerically. (AIP)

• Research Organization: Sandia Laboratories, Albuquerque, New Mexico 87115
• OSTI ID: 7342964
• Journal Information: J. Appl. Phys.; (United States), Vol. 48:1
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
GAS LASERS
KINETICS
AMPLIFIERS
ELECTRON BEAMS
EXCITATION
GAIN
HYDROFLUORIC ACID
KINETIC EQUATIONS
LINE BROADENING
NONLINEAR PROBLEMS
STEADY-STATE CONDITIONS
STIMULATED EMISSION
TRANSPORT THEORY
BEAMS
ELECTRONIC EQUIPMENT
EMISSION
ENERGY-LEVEL TRANSITIONS
EQUATIONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LASERS
LEPTON BEAMS
PARTICLE BEAMS
420300* - Engineering- Lasers- (-1989)