Expandable wavelength division multiplexer based on interferomet

Details Expandable wavelength division multiplexer based on interferomet Expandable wavelength division multiplexer based on interferomet

1999-02-16

2000-12-12

Lee, John D.

Optical waveguides

With optical coupler

Plural

359124, G02B 6293

Patent

active

061609323

ABSTRACT:
A wavelength division multiplexer (WDM) utilizes cascaded interferometric devices, where the two output branches of interferometric devices in each new stage are each coupled to an additional stage of interferometric devices having the same wavelength separation or channel spacing, which suppresses the sidelobes of the signals from preceding stage of interferometric devices. In one embodiment, the interferometric devices are unbalanced Mach-Zehnder Interferometers.

REFERENCES:
patent: 4799797 (1989-01-01), Huggins
patent: 4866698 (1989-09-01), Huggins et al.
patent: 5680490 (1997-10-01), Cohen et al.
patent: 5852505 (1998-12-01), Li

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