degenerate amplifier

degenerate amplifier

[di′jen·ə·rət ′am·plə‚fī·ər]
(electronics)
Parametric amplifier with a pump frequency exactly twice the signal frequency, producing an idler frequency equal to that of the signal input; it is considered as a single-frequency device.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.