DUAL WINDOW WIDEBAND COUPLERS C-WD
FEATURES
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¡á		 Low insertion loss
High port isolation
Custom defined specifications
Environmentally stable
APPLICATIONS
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¡á		 Telecommunications
Local area network
Fiber to the home
Video transmission
Fiber optic sensing
Testing instruments
CATV

Perfomance specifications
ITEM Dual Window Wideband Couplers
0Operating Wavelength, nm 1310 ¡¾ 40 and 1550 ¡¾ 40
0Grade Super ( S ) High ( H )
0Typical Excess Loss, dB 0.08 0.2
0Uniformity, dB (50:50) 0.8 1.2
0Thermal Stablility, dB (peak-peak) <0.2 <0.3
0Polarization Stablility, dB <0.10 <0.15
0Port Configuration 1 ¡¿ 2 or 2 ¡¿ 2
0Coupling Ratio 1:99 to 50:50, (50:50 standard>
0Insersion Loss, dB Please refer to the coupling ratio vs. Insertion loss chart
0Directivity, dB >50 (1 ¡¿ 2), >60 (2 ¡¿ 2)
0Reflectance, dB <-55
0Operating Temperature, ¡É -40 ~ +85
0Storage Temperature, ¡É -55 ~ +85
0Package Options
0(for different pigtailing)		 01. coated fiber (250§­) T5, MA, MB
02. loose tube (900§­) TA, MA, MB
03. PVC cable
 A1, MA, MB

Coupling Ratio vs. Insertion loss
Coupling Ratio (%) Insertion Loss (dB)
Super Grade (S) High Grade (H)
50 / 50 3.6 3.8
45 /55 3.6 / 3.15 4.45 / 3.3
40 / 60 4.7 / 2.7 5.0 / 2.9
35 / 65 5.35 / 2.3 5.7 / 2.5
30 / 70 6.0 / 1.9 6.4 / 2.1
25 / 75 6.95 / 1.7 7.45 / 1.9
20 / 80 7.9 / 1.4 8.5 / 1.5
15 / 85 9.6 / 1.0 10.6 / 1.1
10 / 90 11.0 / 0.7 12.7 / 0.8
5 / 95 14.6 / 0.5 18.4 / 0.55
1 / 99 21.6 / 0.3 21.6 / 0.4

Spectral performance
 
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