WIC
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WIC

1-3

Wavelength Independent Couplers

Features

  • Low insertion loss
  • Low excess loss
  • Low PDL
  • High directivity
  • Environmentally stable and reliable

Applications

  • IMT 2000
  • CATV
  • Wide Area Network
  • Local Area Network
  • Telecommunication system
  • FTTH
  • Test instrument

Specification

(50:50 coupling ratio)

Parameter Unit Grade
Premium Standard
Operating Wavelength nm 1310 and 1550
Wavelength Bandwidth nm ±40
Max. Insertion Loss dB 3.6 3.9
Typical Excess Loss dB 0.1 0.3
Max. Uniformity dB 0.8 1.2
Max. Polarization Dependent Loss dB 0.15 0.20
Min. Directivity dB 50
Min. Return Loss dB 55
Temperature Coefficient dB/℃ 0.002
Operating Temperature ℃ -40 to +85
Storage Temperature ℃ -50 to +85

without connectors

Coupling Ratio(%) / Insertion Loss(dB) Conversion Chart

Coupling Ratio(%) Unit Grade
Premium Standard
40 / 60 dB 4.7 / 2.7 5.0 / 2.9
30 / 70 dB 6.0 / 1.9 6.4 / 2.1
20 / 80 dB 7.9 / 1.2 8.5 / 1.4
10 / 90 dB 11.3 / 0.6 12.7 / 0.8
5 / 95 dB 15.2 / 0.4 18.9 / 0.5
1 / 99 dB 23.5 / 0.3 24.0 / 0.4

 

Dual Window 1×3, 1×4 Wideband Tree Couplers

Specification

Parameter Unit Grade
Premium Standard
Operating Wavelength nm 1310 and 1550
Wavelength Bandwidth nm ±40
Max. Insertion Loss dB 5.2 5.5
Typical Excess Loss dB 0.3 0.5
Max. Uniformity dB 1.0 1.2
Max. Polarization Dependent Loss dB 0.15 0.2
Min. Directivity dB 50
Min. Return Loss dB 55
Temperature Coefficient dB/℃ 0.005
Operating Temperature ℃ -40 to +85
Storage Temperature ℃ -50 to +85

without connectors

Specification

Parameter Unit Grade
Premium Standard
Operating Wavelength nm 1310 and 1550
Wavelength Bandwidth nm ±40
Max. Insertion Loss dB 7.2 7.6
Typical Excess Loss dB 0.4 0.6
Max. Uniformity dB 1.0 1.4
Max. Polarization Dependent Loss dB 0.2 0.3
Min. Directivity dB 55
Min. Return Loss dB 55
Temperature Coefficient dB/℃ 0.005
Operating Temperature ℃ -40 to +85
Storage Temperature ℃ -50 to +85