A DEVICE FOR HIGH-SPEED DATA TRANSMISSION IN FIBER-OPTIC NETWORKS

Abstract

ABSTRACT A DEVICE FOR HIGH-SPEED DATA TRANSMISSION IN FIBER-OPTIC NETWORKS The present invention relates to a device for high-speed data transmission in fiber-optic networks. The device includes a transmitter and a receiver that work together to enable fast and reliable data transmission. The pre-distortion function, equalization, and clock recovery units ensure minimal signal distortion and attenuation, allowing for efficient data transmission over long distances in fiber-optic networks. The device may also include an adaptive filter that updates the pre-distortion function and equalization coefficients in real-time to adapt to changes in the fiber-optic network. The clock recovery unit ensures synchronization of the transmitter and receiver for reliable data transmission. The device is suitable for use in a variety of fiber-optic network applications where high-speed and reliable data transmission is required.

Specification

Description:FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003
Complete Specification
(See section 10 and rule 13)



1.Title of the Invention : A DEVICE FOR HIGH-SPEED DATA TRANSMISSION IN FIBER-OPTIC NETWORKS



2. Applicant Name : Dr.M.G.R Educational and Research
Institute

Nationality : Indian

Address : Periyar E.V.R High Road, Maduravoyal, Chennai 600095, Tamil Nadu


3. Preamble to the Description :

The following specification particularly describes the invention and the manner in which it is to be performed.


4. DESCRIPTION

FIELD OF THE INVENTION
The present invention relates to a device for high-speed data transmission in fiber-optic networks. More specifically, the present invention relates to a device that enables high-speed data transmission in fiber-optic networks by minimizing signal distortion and attenuation.

BACKGROUND OF THE INVENTION
Fiber-optic networks have become increasingly popular for high-speed data transmission due to their ability to transmit large amounts of data over long distances with minimal signal loss. However, signal distortion and attenuation can occur due to factors such as dispersion, nonlinear effects, and optical fiber imperfections. These factors limit the transmission rate and increase the complexity of fiber-optic network systems. Therefore, there is a need for a device that can mitigate these issues and enable high-speed data transmission in fiber-optic networks.

SUMMARY OF THE INVENTION
The present invention provides a device for high-speed data transmission in fiber-optic networks that minimizes signal distortion and attenuation. The device includes a transmitter and a receiver that are connected by an optical fiber. The transmitter includes an optical source, modulator, and pre-distortion unit that generate and modulate an optical signal with a pre-distortion function. The receiver includes a pre-amplifier, equalizer, and decision unit that receive and process the optical signal to recover the original data signal with minimal distortion and attenuation.
DETAILED DESCRIPTION OF THE INVENTION

The device for high-speed data transmission in fiber-optic networks includes a transmitter and a receiver that work together to enable fast and reliable data transmission.
The transmitter includes an optical source that generates a continuous-wave optical signal. The modulator then modulates this optical signal with the data signal to produce a modulated optical signal. The modulator may use various modulation schemes such as amplitude-shift keying (ASK), frequency-shift keying (FSK), or phase-shift keying (PSK) to encode the data signal onto the optical carrier.
To minimize signal distortion and attenuation in the fiber-optic network, the modulated optical signal is then pre-distorted with a pre-distortion function. The pre-distortion function is designed to compensate for the signal distortion and attenuation that occur in the fiber-optic network. The pre-distortion function may be implemented using various methods such as digital signal processing (DSP), lookup tables, or adaptive filters.
The receiver includes a pre-amplifier that amplifies the received optical signal to overcome the signal loss that occurs during transmission. The amplified optical signal is then equalized to compensate for the signal distortion and attenuation that occur in the fiber-optic network. The equalizer includes a digital signal processor that adjusts the equalization coefficients to optimize the equalization performance. The equalizer may use various equalization schemes such as linear equalization, decision-feedback equalization, or maximum-likelihood equalization.
The equalized optical signal is then processed by a decision unit to recover the original data signal. The decision unit may use various detection schemes such as direct detection, coherent detection, or differential detection. The recovered data signal is then sent to the data sink for further processing.
To adapt to changes in the fiber-optic network, the device may include an adaptive filter that updates the pre-distortion function and equalization coefficients in real-time. The adaptive filter may use various algorithms such as least-mean-squares (LMS), recursive least-squares (RLS), or normalized least-mean-squares (NLMS) to update the filter coefficients.
To synchronize the transmitter and receiver, the device may also include a clock recovery unit that recovers the clock signal from the data signal. The recovered clock signal is then used to synchronize the transmitter and receiver for reliable data transmission.
In summary, the device for high-speed data transmission in fiber-optic networks includes a transmitter and a receiver that work together to enable fast and reliable data transmission. The pre-distortion function, equalization, and clock recovery units ensure minimal signal distortion and attenuation, allowing for efficient data transmission over long distances in fiber-optic networks.
 














, Claims:CLAIMS
We Claim:
1. A device for high-speed data transmission in fiber-optic networks, comprising:
a transmitter that includes an optical source, modulator, and pre-distortion unit that generate and modulate an optical signal with a pre-distortion function; and
a receiver that includes a pre-amplifier, equalizer, and decision unit that receives and processes the optical signal to recover the original data signal with minimal distortion and attenuation.
2. The device of claim 1, wherein the pre-distortion function compensates for signal distortion and attenuation in the fiber-optic network.
3. The device of claim 1, further comprising an adaptive filter that updates the pre-distortion function and equalization coefficients in real-time to adapt to changes in the fiber-optic network.
4. The device of claim 1, further comprising a clock recovery unit that recovers the clock signal from the data signal to synchronize the transmitter and receiver.


Dated this the 12th November 2024

Digitally signed
Senthil Kumar B
Agent for the applicant
IN/PA-1549

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