FBT Coupler
Teosco Fused Fiber Coupler provides compact size, low insertion loss, wide operating wavelength range and excellent environmental & mechanical stability. They have accurate coupling ratio from 50/50 to 1/99. Fiber type is 250um bare fiber, 900um, 2.0mm and 3.0mm loose tube fiber available with very tight uniformity. Single-mode standard coupler and wideband coupler components can be applied to perform power splitting and monitoring functions in all kinds of optical communication systems.
Parameters
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Parameters |
Singlemode FBT Coupler |
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Product Type |
Wideband Coupler |
Dual Window Coupler |
Three Window Coupler |
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Operating Wavelength (nm) |
1310 or 1550 |
1310 and 1550 |
1310, 1490 and 1550 |
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Operating Bandwidth (nm) |
1310 ± 40 or 1550 ± 40 |
1310/1550 ± 40 |
1310/1550 ± 40 and 1490 ± 10 |
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Grade |
P |
A |
P |
A |
P |
A |
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Insertion Loss (dB) |
50/50 |
≤ 3.4 |
≤ 3.6 |
≤ 3.6 |
≤ 3.8 |
≤ 3.6 |
≤ 3.8 |
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40/60 |
≤ 4.4/2.6 |
≤ 4.7/2.8 |
≤ 4.7/2.7 |
≤ 4.9/2.9 |
≤ 4.7/2.7 |
≤ 4.9/2.9 |
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30/70 |
≤ 5.7/1.9 |
≤ 6.0/2.0 |
≤ 6.0/1.9 |
≤ 6.3/2.1 |
≤ 6.0/1.9 |
≤ 6.3/2.1 |
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20/80 |
≤ 7.6/1.25 |
≤ 8.0/1.3 |
≤ 7.9/1.3 |
≤ 8.8/1.4 |
≤ 7.9/1.3 |
≤ 8.4/1.4 |
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10/90 |
≤ 11.0/0.65 |
≤ 11.5/0.8 |
≤ 9.2-11/0.75 |
≤ 8.8-11.4/0.8 |
≤ 9.2-11/0.75 |
≤ 8.8-11.4/0.8 |
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5/95 |
≤ 14.2/0.4 |
≤ 14.8/0.5 |
≤ 12.05-14.2/0.4 |
≤ 11.55-14.65/0.5 |
≤ 12.05-14.2/0.4 |
≤ 11.55-14.65/0.5 |
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3/97 |
≤ 16.7/0.3 |
≤ 17.2/0.4 |
≤ 14.1-16.5/0.35 |
≤ 13.6-17.05/0.45 |
≤ 14.1-16.5/0.35 |
≤ 13.6-17.05/0.45 |
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2/98 |
≤ 18.5/0.25 |
≤ 19.0/0.35 |
≤ 15.6-18.55/0.3 |
≤ 15.0-19.2/0.4 |
≤ 15.6-18.55/0.3 |
≤ 15.0-19.2/0.4 |
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1/99 |
≤ 21.5/0.2 |
≤ 22.0/0.3 |
≤ 18.45-21.7/0.25 |
≤ 17.8-22.4/0.35 |
≤ 18.45-21.7/0.25 |
≤ 17.8-22.4/0.35 |
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Polarization Dependent Loss (dB) |
≤ 0.15 |
≤ 0.15 |
≤ 0.15 |
≤ 0.2 |
≤ 0.15 |
≤ 0.2 |
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Return Loss (dB) |
≥ 50 |
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Directivity (dB) |
≥ 55 |
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Temperature Dependent Loss (dB) |
≤ 0.2 |
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Fiber Type |
Corning SMF-28 |
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Fiber Diameter (mm) |
0.25/0.9/2.0/3.0 |
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Operating Temperature (℃) |
-40~+85 |
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Storage Temperature (℃) |
-40~+85 |
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Package Dimension (mm) |
3x45 |
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3x54 |
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3x60 |
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90x20x10 |
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Package Dimensions and Pigtail Style
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Package Dimensions: |
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3x45mm stainless steel tube |
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3x54mm stainless steel tube |
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3x60mm stainless steel tube |
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90x20x10mm case |
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Pigtail Style: |
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3x45mm stainless steel tube |
250um bare fiber |
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3x54mm stainless steel tube |
250um bare fiber |
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3x60mm stainless steel tube |
250um bare fiber or 900um loose tube |
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90x20x10mm case |
900um loose tube or 2mm, 3mm cable |
* Fiber Length can be supplied on request: 0.5m, 1.0m, 1.2m, 1.5m…
* Connector can be supplied on request: SC, LC, FC…
