High-Precision MULTIIR 5G Filter from China Suppliers | Factory for Stable 5Gbps Optical Signal Transmission
Low Insertion Loss
Peak IL ≤ 0.3 dB for optimized optical transmission efficiency.
High Thermal Stability
Thermal drift < 2 pm/°C across -40°C to +85°C operating range.
ITU-T Compliant
Strictly conforms to International Telecommunication Union standards.
| Name | Op. Wavelength Range (nm) | Center λc (mm) | Center λc Accuracy (nm) | Passband (nm) | Reflect. Band (nm) | Peak IL (dB) | Passband Ripple (dB) | Passband Reflect. Isol. (dB) | Reflect. Band Transm. Isol. (dB) | Incid. Angle (°) | Passband PDL (dB) | Op. Temp. (°C) | λ Thermal Drift △λ/△T (pm/°C) | Dimensions (mm) | Backside AR Coating | Spectrogram |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5G 1270&1330 | 1250.0-1360 | ITU Standard Compliant | - | 1255~1285 | 1315~1345 | ≤0.3 | - | - | ≥30 | 45° | <0.1 | -40℃~+85℃ | <2 | 1.8(±0.05)×1.8(±0.05)×0.3(±0.05) | Reflectivity 0.2% | |
| 5G 1270&1330 | 1250.0-1360 | ITU Standard Compliant | - | 1255~1285 | 1315~1345 | ≤0.3 | - | - | ≥30 | 45° | <0.1 | -40℃~+85℃ | <2 | 1.8(±0.05)×1.8(±0.05)×0.3(±0.05) | Reflectivity 0.2% | |
| 5G 1270&1330 | 1250.0-1360 | ITU Standard Compliant | - | 1320~1343 | 1260~1285 | ≤0.3 | - | - | ≥30 | 0° | <0.1 | -40℃~+85℃ | <2 | 1.8(±0.05)×1.8(±0.05)×0.3(±0.05) | Reflectivity 0.2% | |
| 5G 1270&1330 | 1260.0-1360 | ITU Standard Compliant | - | 1258~1286 | 1310~1360 | ≤0.3 | - | - | ≥30 | 0° | <0.1 | -40℃~+85℃ | <2 | 1.8(±0.05)×1.8(±0.05)×0.3(±0.05) | Reflectivity 0.2% |
1. What are 5G 1270&1330 nm optical filters used for?
These optical filters are primarily designed for 5G optical transceivers, WDM (Wavelength Division Multiplexing) systems, and telecommunication networks requiring precise channel separation between 1270 nm and 1330 nm wavelengths.
2. What is the typical insertion loss and isolation of these filters?
The filters offer ultra-low peak insertion loss (Peak IL ≤ 0.3 dB) and high channel isolation (Reflection Band Transmission Isolation ≥ 30 dB), ensuring minimal signal degradation.
3. What incident angles (AOI) are supported?
Standard configurations support both 0° and 45° angles of incidence (AOI), allowing flexible optical path design inside compact optical modules.
4. How stable is the wavelength performance over temperature variations?
The wavelength thermal drift (△λ/△T) is strictly maintained below 2 pm/°C within the wide operating temperature range of -40°C to +85°C.
5. What are the standard dimensions and AR coating specifications?
The standard dimensions are 1.8(±0.05) × 1.8(±0.05) × 0.3(±0.05) mm, featuring a high-performance backside anti-reflective (AR) coating with reflectivity ≤ 0.2%.
6. Can custom dimensions or wavelength bands be provided?
Yes. If the current stock items do not match your exact specifications, custom passband, size, and coating parameters can be manufactured upon request.






