Auxora’s CWDM filter block series is a broad portfolio of vertically-integrated products for optical networks using micro-optics that are designed and manufactured in house with our core processes including crystal cutting, precision polishing, thin-film coatings and high-volume automatic assembly manufacturing. These filter blocks can be used to combine 4/8 optical channels at the transmitter end as they are launched into a single-mode fiber, then function in reverse at the receiver end, with channel spacing of 20nm, each transmitting at 25Gb/s or 10Gb/s.
| Parameters | Unit | Specifications |
| Operating Wavelength Range | nm | 1260~1360 |
| Angle of Incidence | Deg | 8 or 13.5 |
| Channels | - | 4CH |
| Channel Spacing | - | 20nm |
| Central Wavelength | nm | 1271/1291/1311/1331 |
| Passband | nm | CW±6.5 |
| Insertion Loss @ passband | dB | ≤ 1.0 (4CH) |
| IL Uniformity | dB | ≤ 0.6 |
| Ripple @ passband | dB | ≤ 0.4 |
| Polarization Dependent Loss@ passband | dB | ≤ 0.25 |
| Light Spot Pitch | um | 500+/-50 ;750+/-50;1000+/-75 or customized |
| Parallelism for all of 4CHs | Deg | ±0.15 |
| Operating Temperature | °C | -5~75(-40~85 optional) |
| Storage Temperature | °C | - 40 ~ + 85 |
