System and method for optical transmission

Abstract

In an example embodiment, an optical system includes an analog laser transmitter having a burst operative mode. The system may include enable logic configured to provide a digital enable signal in response to receiving a trigger signal other than a reverse electrical signal. The system may further include a power controller circuit coupled to the transmitter and enable logic and configured to turn on the analog transmitter when the enable signal is asserted and turn off the analog transmitter when the enable signal is de-asserted. An example method embodiment may include providing an analog signal to the analog laser transmitter and providing a trigger signal to the enable logic to provide a digital enable signal in response to receiving the trigger signal and turning on the analog laser transmitter when the enable signal is asserted, and turning off the analog laser transmitter when the enable signal is de-asserted.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of application Ser. No. 10 / 930,214, filed Aug. 31, 2004.TECHNICAL FIELD[0002]The present disclosure is generally related to optical systems, and, more particularly, is related to laser transmitters.BACKGROUND OF THE DISCLOSURE[0003]Optical transmission systems incorporating laser transmitters can be generally classified under two broad categories: analog systems and digital systems. In analog systems, the laser transmitter operates in an analog mode that can be described using the prior art optical system shown in FIG. 1. Laser transmitter 120 accepts an analog input signal via electrical line 110 and produces an output optical signal on optical link 140. In certain applications, the analog input signal may be a baseband analog signal such as a sine wave of a particular frequency, or a complex analog signal containing several frequency components. In other applications the analog input signal may be a mo...

AI Technical Summary

Benefits of technology

This configuration allows for efficient, cost-effective operation in mixed-mode systems by reducing turn-on / turn-off times, minimizing data corruption, and optimizing bandwidth usage in PON systems, while maintaining stable optical power and low distortion.

Problems solved by technology

While this may be acceptable for the analog system of FIG. 1, such lengthy turn-on / turn-off times prove unsuitable for digital mode operations wherein the laser transmitter has to be turned on and off more rapidly.

Thus, a heretofore unaddressed need exists in the industry to address the aforementioned and / or other deficiencies and inadequacies.

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