Non-linear optical loop mirror device providing pulse amplitude

Details Non-linear optical loop mirror device providing pulse amplitude Non-linear optical loop mirror device providing pulse amplitude

1997-02-13

1998-02-10

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling function

372 6, 359337, G02B 642, G02B 626

Patent

active

057177970

ABSTRACT:
A nonlinear optical loop mirror device having a distributed directional asymmetry. A dispersion decreasing optical fiber is formed into a loop by an optical coupler which divides input pulses into two component pulses that propagate around the loop in opposite directions, and which transmits and/or reflects returning component pulses in accordance with their relative phases. The parameters of the loop, such as its length, effective area, rate of change of dispersion, etc. are selected so that input pulses may be switched or transmitted in accordance with whether their widths or amplitudes are above or below predetermined threshold values.

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