nonlinear optical loop mirror
Also found in: Acronyms.
nonlinear optical loop mirror[¦nän‚lin·ē·ər ¦ap·tə·kəl ′lüp ′mir·ər]
A fiber-optic device in which a coupler splits the input light into two waves that travel in opposite directions around a fiber-optic loop and acquire different phases because of nonlinearities in the optical medium; the output power is very low for some phase differences and equals the input power for other phase differences.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.