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燽ookname |
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Three-window coupler (TWC) is newly developed. Built by asymmetric coupling technique, TWC operating bandwidth is expanding to 1310nm, 1490nm and 1550nm three communication windows. The TWC has the same coupling ratio on 1310, 1490 and 1550 nm communication windows, with low excess loss and low PDL. TWC are widely used for communication systems, CATV, FTTH, where multiple optical signals pass through single fiber. |
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Description: |
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Applications:
- Optical communication systems
- CATV
- FTTH
Features:
- Low excess Loss
- Low PDL
- Three operating windows
- High stability and reliability
Specifications:
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Parameter |
Grade |
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P |
A |
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Operating Wavelength (nm) |
1310, 1490 and 1550 |
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Operating Bandwidth (nm) |
1310 ± 40、1490 ± 10 and 1550 ± 40 |
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Typical Excess Loss (dB) |
0.07 |
0.1 |
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Insertion Loss (dB) |
50/50 |
≤3.6 |
≤3.8 |
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40/60 |
≤4.7/2.7 |
≤4.9/2.9 |
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30/70 |
≤6.0/1.9 |
≤6.3/2.1 |
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20/80 |
≤7.9/1.2 |
≤8.4/1.4 |
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10/90 |
≤11.3/0.65 |
≤12.0/0.8 |
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5/95 |
≤14.6/0.4 |
≤15.5/0.5 |
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2/98 |
≤18.8/0.3 |
≤19.5/0.4 |
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1/99 |
≤22.5/0.25 |
≤23.5/0.35 |
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PDL (dB) |
≤0.15 |
≤0.2 |
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Directivity (dB) |
≥55 |
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Operating temperature |
- 40℃ ～ + 85℃ |
﹡Other specification can be made on customer request
Packaging Information:
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Configuration |
1×2 or 2×2 |
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Fiber lead length |
1 meter, others on request |
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Fiber Type |
250 um bare fiber |
900 um loose tube |
3mm loose tube |
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Dimensions (Φ × L) |
Φ 3.0 mm×54 mm |
Φ 3.0 mm×70 mm |
90 mm× 14 mm×8.5 mm |
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Φ 2.4 mm×42 mm |
Φ 3.0 mm×54 mm |
﹡Other package dimensions can be made on customer request |
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Correlation Products |
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