Optical transmitter for transmitting signals with high data rates, an optical transmission system and a method therefore
AssigneeAlcatel
InventorHenning Bulow
Life of this patent
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Abstract
The invention concerns a high speed optical transmitter, comprising at least one optical time division multiplexer, that is designed to generate a multiplexed signal with return-to-zero like pulse form out of at least two input signals, wherein further a conversion filter at the output of the optical transmitter is comprised and wherein the conversion filter shows filter means for generating an optical output signal with broadened pulses for reducing the use of spectral bandwidth, as well as an optical transmission system and a method therefore.
Claims8
A high speed optical transmitter, comprising at least one optical time division multiplexer, that is designed to generate a multiplexed signal with return-to-zero like pulse form out of at least two input signals, wherein further a conversion filter at the output of the optical transmitter is comprised and wherein the conversion filter shows filter means for generating an optical output signal with broadened pulses for reducing the use of spectral bandwidth.
An optical transmission system with an optical transmitter, an optical transmission link and an optical receiver, wherein the optical transmitter comprises an optical time division multiplexer for generating a multiplexed signal out of at least two input signals, wherein the optical transmitter further comprises a conversion filter for compressing or reducing the spectral bandwidth of the multiplexed signal.
A method to generate an optical output signal by optically time multiplexing at least two input signals to a multiplexed signal, wherein the bandwidth of said multiplexed signal is compressed or reduced to obtain an output signal with a reduced use of optical bandwidth compared to the use of optical bandwidth of said multiplexed signal.
Dependencies are inferred from the claim text.