1. Specifications
| Parameters | Unit | Value | |
| Transmission Wavelength | nm | 1535~1565 | |
| Reflection Wavelength | nm | 1480±10 | |
| Insertion Loss | Transmission | dB | ≤0.8 |
| Reflection | dB | ≤0.6 | |
| Isolation (dB) | Transmission | dB | ≥25 |
| Reflection | dB | ≥15 | |
| Ripple | dB | ≤0.4 | |
| Minimum extinction ratio (23℃) | dB | ≤18 | |
| Return Loss | dB | ≥50 | |
| Maximum Optical Input Power range | mW | 300 | |
| Fiber Type | / | Corning PM15-U25D | |
| Operating Temperature | ℃ | 0~70 | |
| Storage Temperature | ℃ | -40~85 | |
| Package Dimension (Φ*L) | mm | Φ5.5 xL38 | |
*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, and ER will be 2dB lower.


2. Mechanical Dimensions(Refer to the below)

3. Ordering information
| CWDM | - | XX | X XX | XX | X | XX | - | X | X | X |
|
|
| Port | Pass Channel | Module type | Fiber Type | Output Fiber Length |
| COM Port Connector | Pass Port Connector | Reflection Port Connector |
| CWDM |
| 01=1*1 | 470=1470 | G1~6=Glass Tube | B= bare fiber | 10=1.0m |
| 00=None | 00=None | 00=None |
|
|
| 02=1*2 | 471=1471 | S1~6=Steel Tube | L=0.9mmtube | 12=1.2m |
| 1=FC/UPC | 1=FC/UPC | 1=FC/UPC |
|
|
|
| ……. | B0=90x20x10mm | 02=2.0mm Tube | 15=1.5m |
| 2=FC/APC | 2=FC/APC | 2=FC/APC |
|
|
|
| 610=1610 | X0= Customized | 03=3.0mm Tube |
|
| 3=SC/UPC | 3=SC/UPC | 3=SC/UPC |
|
|
|
| 611=1611 |
|
|
|
| 4=SC/APC | 4=SC/APC | 4=SC/APC |
|
|
|
|
|
|
|
|
| 5=LC/UPC | 5=LC/UPC | 5=LC/UPC |
|
|
|
|
|
|
|
|
| 6=LC/APC | 6=LC/APC | 6=LC/APC |
|
|
|
|
|
|
|
|
| X= Customized | X= Customized | X=Customized |
| NO. | Size Φ*L | Materials | NO. | Size Φ*L | Materials |
| G1 | Φ2.6*24~27 | Glass Tube | S1 | Φ3.2*27 | Steel tube |
| G2 | Φ3.0*24~27 | Glass Tube | S2 | Φ3.2*30 | Steel tube |
| G3 | Φ3.2*24~27 | Glass Tube | S3 | Φ3.6*30 | Steel tube |
| G4 | Φ3.6*24~27 | Glass Tube | S4 | Φ4.8*38 | Steel tube |
| G5 | Φ3.8*24~27 | Glass Tube | S5 | Φ5.5*34 | Steel tube |
| G6 | Φ4.0*24~27 | Glass Tube | S6 | Φ5.5*38 | Steel tube |
| Part Number | Product Description |
| CWDM-02491S6B10-000 | CWDM Devices 1491nm, 3-Port, Steel Tube (Φ5.5*38mm),Com/Pass/Ref Fiber Length 1.0m with 0.9mm Hytrel Loose Tube, Connectors: COM port SC/PC , Ref port :SC/PC, Pass Port:SC/APC |

FAQ
1. For specific ultra-miniature optical modules, do you support deep customization (OEM/ODM) for micro-size and specific fiber pigtails?
Fully supported. Leveraging our strong source-level micro-optical packaging capabilities, we offer highly customized non-standard solutions. You can customize ultra-fine 250μm bare fibers or bend-insensitive specialty fibers to fit tight spaces; precisely specify the outer diameter and length of extremely demanding miniature steel tubes or glass tubes; and customize special bands (such as 980nm pump multiplexing) and specify connector types to perfectly fit your extremely compact mechanical drawings.
2. How do you control lead times and production capacity for large-scale bulk orders from EDFA amplifier manufacturers?
The coupling and sealing processes for miniaturized devices are extremely challenging, but we have ample capacity and highly automated passive device packaging and cleanroom production lines. For specific-size prototypes or initial small-batch orders, rigorous high-standard testing and delivery can typically be completed within 1-2 weeks. For large-batch orders of Mini-EDFA or optical communication equipment, the standard delivery time is strictly controlled within 3-4 weeks. The direct-from-source model can reliably guarantee that your mass production milestones are progressing on time.