Optical waveguides – With optical coupler – Input/output coupler
Patent
1996-06-21
1998-02-24
Ullah, Akm E.
Optical waveguides
With optical coupler
Input/output coupler
G02B 634
Patent
active
057217963
ABSTRACT:
In accordance with the invention a multiwavelength optical fiber cross connect is provided with an active all-fiber optical router for multiplexing/demultiplexing. The router is comprised of one electronic component--a phase controller--and four fiber components: 1) a fiber directional coupler, 2) a fiber reflective grating filter, 3) a fiber tap, and 4) a fiber phase modulator. The application describes how to make optical routers from these components ranging in complexity from a single wavelength drop router to an N-port, N-wavelength router for add/drop multiplexing. The application also describes how optical wavelength routers can be combined to create optical fiber Cross connect (OXCs), ranging in complexity from 2.times.2 single wavelength OXCs to NXN, M-wavelength OXCs.
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de Barros Miriam R.
Eskildsen Lars Erik
Nielsen Torben N.
Nykolak Gerald
Tanbun-Ek Tawee
Lucent Technologies - Inc.
Ullah Akm E.
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