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China MULTIIR DWDM Filters - Leading Suppliers and Factory for Enhanced Optical Fiber Communication Solutions
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DWDM | 1440.0 ~ 1640.0 | Comply with the standards of the International Telecommunication Union (ITU) | λc -0.00 ~ +0.4 | ＞0.40 | ＜1.20 | ＜0.35 | ＜0.25 | ＞13 | — | 0° | ＜0.1 | -40℃~+85℃ | ＜0.0007 | (1.30~1.43)× (1.30~1.43)× (0.9~1.40), with 0.25° wedge | 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
Q What is the operating wavelength range of your DWDM filters?
Our DWDM filters feature a wide operating wavelength range of 1440.0 nm to 1640.0 nm, covering the key telecommunication bands.
Q Do these DWDM filters comply with international telecom standards?
Yes, the Center Wavelength (λc) of our DWDM filters fully complies with the standard channel grids established by the International Telecommunication Union (ITU).
Q What are the dimensions and physical specifications of the standard filter?
The standard dimensions are (1.30~1.43)mm × (1.30~1.43)mm × (0.9~1.40)mm, and they are designed with a 0.25° wedge and Backside AR Coating (Reflectivity < 0.2%) to optimize optical performance.
Q How stable are these filters under temperature fluctuations?
Our DWDM filters exhibit exceptional thermal stability with a center wavelength thermal drift (△λ/△T) of less than 0.0007 pm/°C across an operating temperature range of -40°C to +85°C.
Q Can I request custom sizes or specifications not listed in the stock table?
Yes. While the table shows our currently stocked items, we offer customization options. Please contact us directly to discuss your specific wavelength, dimension, or performance requirements.