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Adaptive power efficient receiver architecture, processing method and system

A receiver and structure technology, applied in electromagnetic receivers, transmission systems, electromagnetic transceivers, etc., can solve problems such as maintaining the linearity of output signals

Active Publication Date: 2015-05-06
INT BUSINESS MASCH CORP
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  • Claims
  • Application Information

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Problems solved by technology

In addition, maintaining the linearity of the output signal is also an important issue

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  • Adaptive power efficient receiver architecture, processing method and system
  • Adaptive power efficient receiver architecture, processing method and system
  • Adaptive power efficient receiver architecture, processing method and system

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[0018] One problem associated with typical optical receiver applications is that in some cases where the input signal is strong, more power than necessary is dissipated in the receiver. For example, as mentioned above, such optical receivers apply relatively large gains to ensure that a large dynamic range of input optical power is accommodated. Alternatively, receivers employ variable gain amplifiers or automatic gain control to maintain output signal linearity. Because variable-gain amplifiers are designed to linearly adjust gain based on the output signal, the gain does not depend on input strength. As a result, these receivers apply a relatively large gain when receiving a strong optical input signal, although the lower gain is sufficient to meet the system specifications for the output signal. As such, the optical receiver consumes more power than is required to properly process the incoming signal.

[0019] In some cases, however, power efficiency can be improved due t...

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Abstract

Systems and methods for processing an optical signal are disclosed. The optical signal is converted to a voltage signal and the voltage signal is amplified. In addition, a signal strength and / or a signal quality parameter is monitored and an indication of the signal strength and / or a signal quality parameter is generated. Further, a gain and / or an operating bandwidth on the conversion or the amplification can be adjusted based on the indication to reduce power consumption of an optical receiver.

Description

technical field [0001] This application relates to optical receivers, and more particularly, to power consumption in optical receivers. Background technique [0002] In a typical optical receiver application, the input optical power varies between 6-20 dB, with the lower range more present in multimode fiber links and the higher range more present in single mode fiber. To accommodate this large dynamic range, the receiver is designed to provide sufficient gain to produce a strong digital output for the lowest specified optical input power. In addition, maintaining the linearity of the output signal is also an important issue. Therefore, to preserve output signal linearity, optical receivers use variable gain amplifiers or automatic gain controls that are independent of the input signal strength. Contents of the invention [0003] One embodiment relates to a method of processing an optical signal. According to the method, an optical signal is converted into a voltage sig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/60H04B10/43
CPCH04B10/0799H04B10/6931
Inventor P·K·佩佩柳高斯基A·V·里尔亚科夫C·L·肖M·索约尔
Owner INT BUSINESS MASCH CORP
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