MULTIIR LWDM Filter
Product Introduction:
Spectrogram:
|
Filter Specs Number/ Version Number |
LWDM |
|
Op. Wavelength Range(nm) |
1260.0-1330 |
|
Center λc(mm) |
ITU |
|
Center λc Accuracy(nm) |
|
|
Passband(nm) |
λc±1.35 |
|
Reflect Band(nm) |
1260nm~λc-3.15&λc+3.15 ~1330nm |
|
Peak Insertion Loss(dB) |
≤0.33 |
|
Passband Ripple(dB) |
≤0.25 |
|
Reflect Isolation within Passband (dB) |
|
|
Transmission Isolation within ReflectBand(dB) |
≥27 |
|
Angle of Incidence(°) |
8 |
|
Polarization Dependent Loss within Passband(dB) |
<0.1 |
|
Operating Temperature（℃） |
-40~+85 |
|
Wavelength Thermal Shifting △λ/△T (pm/°C |
<2 |
|
Dimension(mm) |
0.757(±0.03)* 0.757(±0.03)*0.6（±0.025） |
|
Backside AR Coating |
<0.2% Reflection |
| 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 |
| LWDM | 1260.0-1330 | Comply with the standards of the International Telecommunication Union (ITU) | - | λc±1.35 | 1260nm～λc-3.15 / λc+3.15 ~1330nm | ≤0.33 | ≤0.25 | - | ≥27 | 8° | <0.1 | -40℃~+85℃ | <2 | 0.757(±0.03)×0.757(±0.03)×0.6(±0.025) | Reflectivity 0.2% |
|
LWDM Filter (Low-Density Wavelength Division Multiplexing Filter) is an Optical Communication Filter developed by MULTI IR based on the standard of LWDM Filter - Low-Band Wavelength Division Multiplexing Filter. Its core positioning is to "balance transmission capacity and cost", providing a cost-effective solution for medium-capacity scenarios. The product adopts an optimized dielectric thin film structure, supporting the filtering of 8-12 channels of wavelengths (1270-1330nm or 1525-1575nm), with a channel spacing of 200GHz, insertion loss ≤ 0.35dB, and isolation ≥ 32dB. Its performance is between CWDM and DWDM, and the cost is only 60%~70% of that of DWDM products. This product is compatible with mainstream optical modules such as SFP+ and QSFP, with a wavelength tolerance of ±0.3nm, meeting the precision requirements of medium-capacity scenarios; at the same time, it has industrial-grade environmental adaptability, stable optical performance in the temperature range of -40℃~85℃, and adopts a miniaturized package (2×2mm) to adapt to high-density integration of equipment; combined with MULTI IR's brand technology (MULTI IR Optech), it can be compatible with CWDM/DWDM systems, supporting smooth expansion, and providing a flexible wavelength division multiplexing solution for metropolitan area networks and enterprise networks.
Medium-capacity metropolitan area network transmission
Enterprise-level wavelength division multiplexing equipment
