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Single
Mode Wavelength Independent Couplers --WIC-1¡Á2, 2¡Á2
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¡¡¡¡Because wavelength independence couplers are small
and insensitive to operating wavelengths, they are suitable for use
in instrumentation, DWDM systems, and CATV distribution. Their low
optical loss and high directivity make them an excellent choice for
systems with power constraints. Devices can be optimized at 1310nm,
1550nm, or custom wavelengths, and can be available in a variety of
coupling ratios. |
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KEY
FEATURES |
APPLICATIONS |
Low loss |
Optic communication system |
Low polarization dependence |
LAN |
Wide bandwidth |
CATV |
Environmentally stable |
Fiber optic sensor |
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Test instrument |
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SPECIFICATIONS |
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Grade
Parameter |
Grade "A"
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Operating Wavelength (nm) |
1310 or 1550,others on request
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Bandwidth (nm) |
¡À40
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Excess Loss (dB) |
¡Ü 0.08 (0.05 typ.)
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Coupling Ratio (dB) |
50/50
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40/60
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30/70
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20/80
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Typ. Insertion Loss (dB) |
3.05
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4.1/2.3
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5.3/1.6
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7.1/1.0
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Max. Insertion Loss (dB) |
3.4
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4.4/2.5
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5.6/1.8
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7.4/1.2
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Polarization Dependent Loss (dB) |
¡Ü0.10
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¡Ü0.10
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¡Ü0.15/0.10
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¡Ü0.15/0.10
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Thermal Stability (dB/¡æ) |
¡Ü 0.002 over -40¡æ to +85¡æ
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Directivity (dB) |
1¡Á2
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¡Ý 50 , ¡Ý 60 on request
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2¡Á2
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¡Ý 65
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PACKAGE
INFORMATION |
Configuration |
1¡Á2 or 2¡Á2
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Lead length |
1 meter, others on request
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Lead Type |
0:250um bare fiber |
1: 900um loose tube |
2:3mm loose cable
(or 2mm) |
Package Dimensions (mm) |
A:§¶3.0¡Á48 |
A:§¶3.5¡Á66
B: 90¡Á16¡Á9 |
B: 90¡Á16¡Á9
C: 106¡Á79¡Á10 |
Operating Temperature (¡æ) |
-40 to +85 |
-20 to +70 |
-20 to +70 |
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