Equipments including transponder for optical fiber transmission

Details Equipments including transponder for optical fiber transmission Equipments including transponder for optical fiber transmission

2005-02-01

2005-02-01

Lee, John D. (Department: 2874)

Optical waveguides

With optical coupler

Plural

C398S140000

Reexamination Certificate

active

06850663

ABSTRACT:
A transponder which may form part of communication device such as an optical transmitters device includes an optical receiver for receiving a high speed optical information signal and for converting the high speed optical information signal to an electrical signal, a demultiplexing circuit for separating the electrical signal into a plurality of low speed information signals, a plurality of optical transmitters each of which converts one of the low speed electrical signals into an optical signal of mutually different wavelengths, and a propagation delay difference compensating circuit. The propagation delay difference compensating circuit is provided between the demultiplexing circuit and the plurality of optical transmitters and compensates mutual propagation delay differences of each of the optical signals outputted from the optical transmitters.

REFERENCES:
patent: 5550818 (1996-08-01), Brackett et al.
patent: 5710650 (1998-01-01), Dugan
patent: 5986783 (1999-11-01), Sharma et al.
patent: 5999291 (1999-12-01), Anderson
patent: 6046833 (2000-04-01), Sharma et al.
patent: 6081359 (2000-06-01), Takehana et al.
patent: 6449074 (2002-09-01), Okano et al.
patent: 6532320 (2003-03-01), Kikuchi et al.
patent: 6609840 (2003-08-01), Chow et al.

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