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China Suppliers Factory: MULTIIR BiDi Filter for Single-Fiber Bidirectional Optical Communication
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BI-DI | 1260-1550 | Comply with the standards of the International Telecommunication Union (ITU) | - | 1450-1550 | 1260-1360 | ≤0.2 | - | - | ≥40 | 0° | <0.1 | -40℃~+85℃ | <2 | 1.75(±0.05)×1.5(±0.05)×0.2(±0.05) | Reflectivity 0.2% |
|
| BI-DI | 1260.0-1550 | Comply with the standards of the International Telecommunication Union (ITU) | - | 1460-1580 | 1260-1360 | ≤0.2 | - | - | ≥30 | 45° | <0.1 | -40℃~+85℃ | <2 | 1.75(±0.05)×1.5(±0.05)×0.2(±0.05) | Reflectivity 0.2% |
|
| BI-DI | 1260.0-1550 | Comply with the standards of the International Telecommunication Union (ITU) | - | 1260～1360 | 1460～1580 | ≤0.2 | - | - | ≥30 | 45° | <0.1 | -40℃~+85℃ | <2 | 1.75(±0.05)×1.5(±0.05)×0.2(±0.05) | Reflectivity 0.2% |
|
| BI-DI | 1260-1550 | Comply with the standards of the International Telecommunication Union (ITU) | - | 1260-1360 | 1450-1550 | ≤0.2 | - | - | ≥40 | 0° | <0.1 | -40℃~+85℃ | <2 | 1.75(±0.05)×1.5(±0.05)×0.2(±0.05) | Reflectivity 0.2% |
|
The above list shows our current stock items.
If you don't see what you are looking for, please contact us.
Product Spectrograms
BiDi Filter Spectrogram (1260-1550 nm)
BiDi Filter Spectrogram (45° Incident Angle)
BiDi Filter Spectrogram (0° Incident Angle)
Frequently Asked Questions (FAQ)
Q What standards do these BI-DI filters comply with?
Our BI-DI (Bi-Directional) optical filters fully comply with the rigorous standards established by the International Telecommunication Union (ITU), ensuring high compatibility and reliability in telecom applications.
Q What are the standard incident angles for these optical filters?
We offer standard BI-DI filters configured for both 0° and 45° incident angles, depending on your specific system design and optical routing requirements.
Q What is the thermal stability of the center wavelength?
The center wavelength thermal drift (△λ/△T) is extremely low at less than 2 pm/°C, ensuring high performance stability across the full operating temperature range of -40°C to +85°C.
Q What are the dimensions and coating specifications of the stock items?
The stock dimensions are 1.75(±0.05) × 1.5(±0.05) × 0.2(±0.05) mm. They feature a high-performance backside AR (Anti-Reflective) coating with a reflectivity of 0.2% to minimize optical loss.
Q Can I request custom sizes or specific passband configurations?
Yes. While the table lists our current stock items, we can customize dimensions, passband ranges, and optical isolation parameters. Please contact us directly to discuss your specific requirements.