Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-05-10
1997-09-02
Hellner, Mark
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359264, 359276, 359279, H04B 1004
Patent
active
056638230
ABSTRACT:
An optical transmission system comprises an optical transmitter for transmitting an optical signal, comprising an optical modulator for modulating a intensity of the optical signal in accordance with a binary digital NRZ (nonreturn-to-zero) electric signal and outputting a transmission optical signal, and means for supplying the electric signal and thereby driving the optical modulator, the means including means for adjusting a waveform of the electric signal supplied to the optical modulator so that a timing with which the optical signal outputted from the optical modulator transits from a high level to a low level is later than a timing with which the optical signal transits from the low level to the high level, an optical fiber with wavelength dispersion for propagating the signal light transmitted from the optical transmitter, and an optical receiver for receiving the optical signal propagated along the optical fiber and reconstituting an electric signal from the optical signal.
REFERENCES:
patent: 5508845 (1996-04-01), Frisken
patent: 5515196 (1996-05-01), Kitajima et al.
patent: 5521738 (1996-05-01), Froberg et al.
IEEE Photonics Technology Letters, vol. 3, No. 10, pp. 916-918; A. H. Gnauck et al.; Oct. 1991, "Dispersion Penalty Reduction Using An Optical Modulator With Adjustable Chirp.".
Hellner Mark
Kabushiki Kaisha Toshiba
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