Burst Optical Receiver Pin Multiplexing for PON Packaging
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Solution Overview
Problem
The existing 5-pin TO CAN packaging form of optical receivers in PON systems requires additional signal pins for reset and rate select signals, increasing packaging costs.
Innovation Solution
An optical receiving apparatus with a decoupling module, voltage regulator module, and amplifier module that multiplexes control and power signals, reducing the need for separate signal pins by integrating reset and rate select information into a single electrical signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the optical receiver uses a 5-pin TO CAN packaging form, then packaging costs are reduced, but additional signal pins are required for reset and rate select signals
Solution Approach 1:
The patent combines the reset signal and rate select signal into a single electrical signal that is transmitted through one pin. The electrical signal contains multiple signal components that are separated and processed internally by the optical receiver, thereby reducing the number of required pins while maintaining all necessary control functions.
Solution Approach 2:
The single electrical signal pin serves multiple functions by carrying both reset and rate select information simultaneously. This multi-functional approach allows the optical receiver to receive multiple control signals through a single interface, reducing packaging complexity while maintaining full functionality.
2Adaptability or versatility
If two additional signal pins are added for reset and rate select signals, then the optical receiver can support PON system requirements, but packaging costs increase
Solution Approach 1:
The patent merges multiple control signal functions (reset and rate select) into a single electrical signal transmitted through one pin. This consolidation maintains full PON system compatibility while avoiding the need for additional pins, thereby preventing packaging cost increases.
Solution Approach 2:
The patent changes the parameter representation by encoding multiple control functions within a single electrical signal's temporal or spectral characteristics. By modifying how control information is encoded and transmitted, the system achieves PON compatibility without requiring additional physical pins.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces the number of signal pins required, thereby decreasing packaging costs while ensuring efficient recovery of burst optical signals across varying data rates.
Implementation Method 1
an optical-to-electrical conversion module, and an amplifier module. The decoupling module is configured to receive a first electrical signal, and perform direct current removal processing on the first electrical signal to obtain a second electrical signal
Data Source
AI summary
An optical receiving apparatus includes a decoupler, a voltage regulator, an optical-to-electrical converter, and an amplifier. The decoupler receives a first electrical signal, and performs direct current removal processing on the first electrical signal thereby obtaining a second electrical signal. The first electrical signal includes control information to control a working state of the amplifier. The electrical signal is a pulse signal and includes the control information. The voltage regulator receives the first electrical signal, and performs voltage regulation processing on the first electrical signal thereby obtaining a third electrical signal that has a constant amplitude and provides a voltage for the amplifier. The optical-to-electrical converter receives a burst optical signal, and converts the burst optical signal into a fourth electrical signal. The amplifier amplifies the fourth electrical signal based on the control information and a power supply of the third electrical signal, and outputs an amplified fourth electrical signal.