Wavelength converter suitable for high bit rates

Details Wavelength converter suitable for high bit rates Wavelength converter suitable for high bit rates

1997-09-26

1999-05-11

Lee, John D.

Optical: systems and elements

Optical frequency converter

Dielectric optical waveguide type

359326, G02F1/39

Patent

active

059033843

ABSTRACT:
A wavelength converter is disclosed having a Sagnac interferometer (NOLM, nonlinear optical loop mirror) as its essential part. In order that the wavelength converter can also be used for NRZ (nonreturn-to-zero) signals, it has a 3.times.3 coupler (2) with six ports (6-11).

REFERENCES:
patent: 5005166 (1991-04-01), Suzuki et al.
patent: 5099347 (1992-03-01), Daniele et al.
patent: 5400164 (1995-03-01), Kurtzke et al.
patent: 5604618 (1997-02-01), Mori et al.
patent: 5619368 (1997-04-01), Swanson
patent: 5760948 (1998-06-01), Bigo
"All Optical 1.5 .mu.m to 1.3 .mu.m Wavelength Conversion in a Walk-Off Compensating Nonlinear Optical Loop Mirror" IEEE Photonic Tech. Ltrs. vol. 7, No. 5, May 1995, pp. 497-499, by D. Mahgerefteh et al.
"System Performance of a Nonlinear Optical Loop Mirror Used as Demultiplexer for Bitrates of 40 Gbit/s and Beyond" Proceedings SPIE, vol.

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