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Here provide the specifications of 2x1 pump combiner（other kinds pls feel free to contact us, we'll response you at our first time):
Parameters/Test conditions Min Typ. Max Unit Note 
1 Signal Operating Wavelength ***0 ***4 ***0 nm 
2 Pump Operating Wavelength **0 ***0 nm 
3 Core Diameter **5 µm 
4 Cladding Diameter **5 µm 
5 Pump Fiber 
Numerical Aperture 0.*5, 0.*2 - 
Refer to fiber codes 
6 Signal Fiber HI***0 or 6/**5 DCF Refer to fiber codes 
 Pump Efficiency (%) 
Signal Insertion 
Loss (dB) 
*5/**0 DCF >*0（Typ. *3） Refer to fiber codes 
8 M2    1.3 - 
9 Optical Isolation *5 *0 dB 
*0 Fiber Length 0.8 m Each port 
*1 Power Handling *5 *0 W Each port 
*2 Operating Environment Temperature *5 **0 oC 
*3 Operating Humidity 5 *5 %RH Not recommend in high humidity for long time. 
*4 Storage Temperature **0 **5 oC 
*5 Package C1, C2, C3, C4 - Handling power is different with PKG 


Now Lightcomm have multiple pump combiner kinds, we have a rich experience and strong ablity to provide you the best products, LightComm have their own's pump combiner patent.Now LightComm provides the following major fiber combiners:
1. 2x1, 3x1, 4x1 pump combiner;
2. 7x1 pump combiner;
3. *9x1 pump combiner;
4. (2*1)x1 pump combiner;(provide PM fiber)
5. (6*1)x1 fiber combiner;(provide Polarization Maintaining fiber)
6. (*8*1)x1 fiber combiner;