1×4 2×4 PM Filter Coupler Module Polarization-Maintaining Optical Coupler
| Features | ![]()  | 
| Low Insertion Loss & Excess Loss High Extinction Ratio High stability and reliability  | 
|
| Application | |
| EDFA Fiber Optical Instrument Power Monitoring Fiber Sensor  | 
Note:
$100 is a deposit, not the final price of the product. If you are interested in the product, please contact us for the price.
Specifications
| Parameter | 1×4 | 2×4 | |||
| Center Wavelength (nm) | 1310 or 1550 | 1064 | 1310 or 1550 | 1064 | |
| Operating Wavelength Range (nm) | +/-30 | ||||
| Insertion Loss (dB) | ≤7.5
 Typ. 7.0  | 
≤8.0
 Typ. 7.5  | 
≤7.6
 Typ.7.2  | 
≤8.2
 Typ. 7.6  | 
|
| WDL (dB) | ≤0.5, Typ. 0.3 | ||||
| Uniformity (dB) | ≤0.8 | ||||
| Return Loss (dB) | ≥50 | ||||
| Directivity (dB) | ≥50 | ||||
| Extinction Ratio (dB) | Type B (Both of axis working) | ≥20 | ≥18 | ||
| Type F (Fast axis blocked) | ≥22 | ||||
| PDL (only for Type B) (dB) | ≤0.1 | ||||
| Temperature Dependent Loss( dB/℃) | ≤0.006 | ||||
| Fiber Type | PM13 or PM15 | PM98 | PM13 or PM15 | PM98 | |
| Operating Temperature (℃) | -5 to+70 | ||||
| Storage Temperature(℃) | -40 to +85 | ||||
| Package Dimensions(mm) | 100x80x10 | ||||
*Above specifications are for devices without the connectors.
*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, and ER will be 2dB lower.
*The PM fiber and the connector key are aligned to the slow axis.
Ordering Information
| PMFCM | Wavelength | Type | Couplig Ratio | Axis Alignment | Pigtail Type | Length | Connector | 
| PMFCM | 06=1064nm 31=1310nm 55=1550nm  | 
014=1×4 024=2×4  | 
E=Even CR | F=Fast Axis Blocked B=Both Axis Working  | 
1=250um bare fiber 2=900um loose tube 3=3mm loose tube 4=2mm loose tube  | 
H=0.5m 8=0.8m 1=1.0m 5=1.5m 2=2.0m 3=3.0m 4=4.0m A=2.5m B=5.0m  | 
0=None 1=FC/UPC 2=FC/APC 3=LC/UPC 4=LC/APC 5=SC/APC 6=SC/UPC  | 
850nm 1x3/3x3 Polarization Maintaining(PM) Optical Fiber Tapered Coupler						

