Bidirectional router and a method of bidirectional...

Details Bidirectional router and a method of bidirectional... Bidirectional router and a method of bidirectional...

2007-10-02

2007-10-02

Chan, Jason (Department: 2613)

Optical communications

Multiplex

Optical switching

Reexamination Certificate

active

10772173

ABSTRACT:
The invention relates to a router which may be used for amplification of a bidirectional optical signal using a single optical amplifier.An advantageous embodiment of the invention comprises two 3 dB couplers which are serially connected via a delay element. According to the embodiment, the delay element comprises a difference in distance ΔL between the two optical branches which connect the two 3 dB couplers.

REFERENCES:
patent: 5412464 (1995-05-01), Thomas et al.
patent: 5647032 (1997-07-01), Jutamulia
patent: 6724995 (2004-04-01), Kristiansen

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