Optical Module Dual Waveband Emitter Bandwidth Expansion
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Solution Overview
Problem
Current optical fiber communication systems in access networks, such as EPON and GPON, fail to meet the increasing demands for high-definition videos and ultra-clear services due to insufficient bandwidth.
Innovation Solution
An optical module with a transceiver assembly and control circuit that generates and transmits optical signals of multiple wavebands, utilizing a microcontroller to control optical emitters and ensure stable bias currents, allowing for increased network bandwidth and user capacity by using two optical emitters to transmit signals of different wavebands in a single device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a single optical emitter is used in traditional optical modules, then the device structure remains simple, but the network bandwidth is insufficient to meet increasing demands for high-definition videos and ultra-clear services
Solution Approach 1:
The patent combines multiple optical emitters (first optical emitter and second optical emitter) into a single optical module, enabling simultaneous transmission of multiple wavebands through one device. This merging approach increases network bandwidth while integrating the complexity into a unified structure rather than using separate modules.
Solution Approach 2:
The optical module is designed with multi-functionality by incorporating both first and second optical emitters that can operate in different wavebands. The control circuit universally manages both emitters, allowing the single device to perform multiple transmission functions simultaneously, thereby increasing bandwidth without requiring separate dedicated modules for each waveband.
2Productivity
If multiple optical emitters are used to increase bandwidth, then network capacity and user capacity increase, but production and usage costs increase
Solution Approach 1:
By merging multiple optical emitters into a single integrated optical module with a shared control circuit, the patent achieves increased network capacity while consolidating manufacturing processes. The integrated design allows for standardized production of multi-emitter modules rather than assembling multiple separate modules, thereby reducing production complexity and costs.
3Adaptability or versatility
If traditional single-waveband optical modules are used, then device simplicity is maintained, but the number of supported optical network terminal users is limited
Solution Approach 1:
The optical transceiver assembly is designed with universal functionality to support multiple wavebands through integrated first and second optical emitters. This multi-functional design enables a single device to serve multiple users and applications simultaneously, increasing adaptability and user capacity while consolidating what would otherwise require multiple separate devices.
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
The solution expands network bandwidth, reduces production and usage costs, and increases the number of optical network terminal users by enabling the transmission of multiple optical signals in one device, effectively addressing the bandwidth limitations in access networks.
Implementation Method 1
the control circuit is configured to control the first optical emitter to generate an optical signal of a first waveband, and the first optical emitter is configured to emit the optical signal of the first waveband to a transmission optical fiber
Implementation Method 2
the control circuit is configured to control the second optical emitter to generate an optical signal of a second waveband, and the second optical emitter is configured to emit the optical signal of the second waveband to the transmission optical fiber
Implementation Method 3
the first beam splitter transmits the first optical signal emitted by the first optical emitter and reflects the optical signal emitted by the second optical emitter, the transmitted first optical signal and the reflected second optical signal being both radiated onto the optical network interface
Implementation Method 4
an end face facing the first optical emitter and the optical axis of the first optical emitter form a preset angle, so that the invalid optical signals from the first optical signal and the second optical signal are reflected by the end face and then kept away from the first optical emitter and the second optical emitter
Data Source
AI summary
The embodiments of this disclosure provide an optical module, which expands the network bandwidth, eases a problem on dynamic bandwidth allocation. The optical module comprises an optical transceiver assembly and a control circuit, wherein the optical transceiver assembly comprises a first optical emitter and a second optical emitter; the control circuit is configured to control the first optical emitter to generate an optical signal of a first waveband, and the first optical emitter is configured to emit the optical signal of the first waveband to a transmission optical fiber; or, the control circuit is configured to control the second optical emitter to generate an optical signal of a second waveband, and the second optical emitter is configured to emit the optical signal of the second waveband to the transmission optical fiber. This disclosure is applied to an optical module of a wavelength division multiplex passive optical network.