China Suppliers MULTIIR BiDi Filter - Single-Fiber Bidirectional Optical Communication Factory
| 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% |
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| 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% |
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| 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% |
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| 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% |
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The above list shows our current stock items. If you don't see what you are looking for, please contact us.
Frequently Asked Questions (FAQ)
Q: What standards do these BI-DI filters comply with?
Our BI-DI (Bi-Directional) filters comply fully with the standards of the International Telecommunication Union (ITU) for reliable optical performance.
Q: What is the operating temperature range for these optical filters?
These filters are designed to operate stably in harsh environment conditions, featuring an operating temperature range of -40℃ to +85℃.
Q: What are the dimensions and tolerances of the stock BI-DI filters?
The standard dimensions of our stock BI-DI filters are 1.75 (±0.05) mm × 1.5 (±0.05) mm × 0.2 (±0.05) mm.
Q: What is the typical peak insertion loss and polarization dependent loss (PDL)?
These high-performance filters exhibit a very low peak Insertion Loss (IL) of ≤0.2 dB and a Passband PDL of less than 0.1 dB.
Q: What anti-reflection (AR) coating is applied to the backside?
The filters are coated with a Backside AR Coating that limits reflectivity to just 0.2% to ensure optimal transmission and minimal signal return loss.
Q: Can I request a custom wavelength or dimension?
Yes. While the list shows our current stock items, we provide custom configurations. Please contact us directly with your specific wavelength, dimensions, and isolation requirements.