GB/T 28511.2-2023 in English
VALIDIntegrated optical path devices based on planar lightwave circuit—Part 2 ：Dense wavelength division multiplexing(DWDM) filter based on arrayed waveguide grating(AWG) technology
- Issued on:2023-12-28
- Implemented on:2024-04-01
- File Format:PDF
- Delivery:Via email within 5 business days
$495.00
《GB/T 28511.2-2023平面光波导集成光路器件 第2部分：基于阵列波导光栅（AWG）技术的密集波分复用（DWDM）滤波器》由TC485（全国通信标准化技术委员会）归口，主管部门为工业和信息化部（通信）。
Introduction
Standard Evolution and Technology Upgrade
GB/T 28511.2-2023, as the replacement standard for the 2012 version, has achieved a number of breakthroughs in the field of AWG filter technology:
| Technical Dimensions | 2012 Version | 2023 Version | Upgrade Highlights |
|---|---|---|---|
| Working Band | C Band Only | New C++ Band | Extended to 1524.498-1572.063nm |
| Channel spacing | 100GHz | Added 50GHz | The number of channels of flat-top devices reaches 96 |
| Temperature characteristics | Single type | Distinguish between heat-sensitive/insensitive types | Industrial-grade devices operate at -40~+85℃ |
Analysis of core parameter system
Key indicators of optical performance
Take 100GHz flat-top heat-insensitive AWG as an example:
- Wavelength accuracy: ±0.05nm (0.01nm wider than the 2012 version)
- 3dB bandwidth: ≥0.56nm (newly added 0.5dB bandwidth ≥0.20nm)
- Total crosstalk: ≥22dB (optimized test method)
Test method innovation
The new version of the standard focuses on optimizing the following test processes:
- Dispersion test: Modulation phase shift method (Figure 9) with an accuracy of ±20ps/nm
- Temperature stability: Set temperature fine-tuning accuracy of 0.1℃ (Formula 3)
- Multi-parameter synchronous detection: The system in Figure 8 realizes joint testing of 9 parameters such as center wavelength/insertion loss/crosstalk
Reliability verification system
| Test category | Severity level | Failure criterion |
|---|---|---|
| Mechanical shock | 500g/1ms | Insertion loss change ≤0.5dB |
| Temperature cycle | -40~85℃ | 500 cycles |
| Damp heat test | 85℃/85%RH | 2000 hours |
Implementation suggestions
Selection guide for different application scenarios:
- Data center: 50GHz flat-top thermal sensitive type is preferred (Table 3)
- 5G fronthaul: Industrial-grade single-fiber bidirectional type (Table 8)
- Submarine optical cable: Ultra-wide spectrum type (Table 9) supporting 75/100/150GHz spacing
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