Efficiency enhancement in cyclotron autoresonance maser amplifiers by magnetic field tapering

Journal Article · Sat Jul 01 00:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.40.489· OSTI ID:6089253

Chen, C; Wurtele, J S

The efficiency of cyclotron autoresonance maser (CARM) amplifiers withpiecewise linear tapering of the magnetic field is analyzed. In the low-currentlimit, we find that increasing the magnetic field substantially enhances theefficiency if an effective detuning parameter is positive, while decreasing themagnetic field is advantageous when the detuning parameter is negative. Forhigh-current, high-gain, CARM operation the efficacy of tapering is found to bereduced in a parameter regime where the saturation wave amplitude becomes ofthe order of an effective detuning parameter.

• Research Organization: Department of Physics and Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139(US)
• OSTI ID: 6089253
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 40:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
AMPLIFIERS
AUGMENTATION
CYCLOTRON RESONANCE
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
GAIN
MAGNETIC FIELD CONFIGURATIONS
MASERS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
RELATIVISTIC RANGE
RESONANCE