Optical Transceiver Extinction Ratio Testing via Laser Current Adjustment
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Solution Overview
Problem
The pass rate of extinction ratio testing in existing technologies for optical transceiver module is not high enough, which seriously affects the production capacity of the related art optical transceiver module is not high enough, which seriously affects the production capacity of the related art optical transceiver module is not high enough, which seriously affects the production capacity of the related art optical transceiver module is not high enough, which seriously affects the production capacity of the related art optical transceiver module is not high enough, which seriously affects the production efficiency of the related art optical transceiver module is not high enough, which seriously affects the production capacity of the related art optical transceiver module is not high enough, which is not effective, which seriously impacts the production capacity of the related art optical transceiver device is not effective, which significantly affects the production capacity of the related art optical transceiver module.
Innovation Solution
An extinction ratio testing system and method that includes a microcontroller, an extinction ratio tester, and a thermostat, which are electrically connected to the optical transceiver module, to perform high and normal temperature extinction ratio testing procedures, adjusting the laser operating current to meet the standard extinction ratio, and recording the number of current increases to determine module quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical transceiver module is tested at different temperatures using conventional testing methods, then the extinction ratio performance can be evaluated, but the pass rate of the extinction ratio test is low and production capacity is affected
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the laser operating current based on temperature conditions. During high-temperature extinction ratio testing, when the measured extinction ratio is below the threshold, the system increases the laser operating current to compensate for temperature-induced performance degradation, enabling modules that would otherwise fail to meet the extinction ratio requirement
Solution Approach 2:
The patent implements feedback control by continuously monitoring the extinction ratio during testing and automatically adjusting the laser operating current in response. The microcontroller receives extinction ratio measurements, compares them against the threshold, and adjusts the current accordingly, creating a closed-loop system that adapts to temperature variations and improves test pass rates
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
Improves the pass rate of the extinction ratio test for the optical transceiver module by ensuring consistent performance across varying temperatures, thereby enhancing production efficiency.
Implementation Method 1
the microcontroller is configured to control the thermostat to maintain the optical transceiver module at a predetermined high temperature
Implementation Method 2
a laser diode to generate optical signals
Data Source
Figure 1
Figure 2
AI summary
An extinction ratio testing system (10) includes a microcontroller (102), an extinction ratio tester (104), and a thermostat (106). The microcontroller (102) controls the thermostat (106) to maintain an optical transceiver module (20) at a predetermined high temperature, and then the microcontroller (102) controls the extinction ratio tester (104) to test an extinction ratio of the optical transceiver module (20). If the extinction ratio is lower than a standard extinction ratio, the microcontroller (102) controls the optical transceiver module (20) to increase a laser operating current (212) of the optical transceiver module (20) to increase the extinction ratio.