Apparatus for shaping binary optical signals, and use thereof to

Details Apparatus for shaping binary optical signals, and use thereof to Apparatus for shaping binary optical signals, and use thereof to

1997-06-13

1998-07-14

Hellner, Mark

Optical: systems and elements

Optical modulator

359176, G02B 2600, H04B 1002

Patent

active

057813264

ABSTRACT:
To shape binary optical signals, the apparatus comprises a first stage for providing a modulating signal whose high levels are stabilized so as to depend little on fluctuations in the input signal. The signal is applied to a second stage including an interferometer structure designed to deliver an output signal that is the result of interference between first and second auxiliary waves, the interference being respectively constructive and destructive when the power of the modulating signal corresponds respectively to a first logic state and to a second logic state. The apparatus can be used to modify the input signal by deleting or inserting data. It can be used in optical data switching or transmission.

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patent: 5471335 (1995-11-01), Nitta
patent: 5594583 (1997-01-01), Devaux
C. Joergensen et al, "Wavelength Conversion by Optimized Monolithic Integrated Mach-Zehnder Interferometer", IEEE Photonics Technology Letters, Apr. 1996, IEEE, US, vol. 8, No. 4, ISSN 1041-1135 pp. 52-1523.
B. Mikkelsen et al, "Polarisation Insensitive Wavelength Conversion of 10 Gbit/s signals with SOAs in a Michelson Interferometer", Electronics Letters, 3 Feb. 1994, UK, vol. 30, No. 3, ISSN 0013-5194, pp. 260-261.

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