Product Detail
The SMC Singlemode Standard Couplers offer very low insertion loss, low polarization dependence and excellent enviromental stability. Accurate coupling ratio from 50/50 to 1/99 are available with very good uniformity in a wide wavelength range of both 1310 nm and 1550 nm windows. These components find extensively applications to perform power splitting and mornitoring fuctions in all kinds of optical communication systems.
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Specifications |
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Parameter |
Unit |
Value |
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Center Wavelength (λc) |
nm |
1310 or 1550 or specified |
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Operating Wavelength |
nm |
λc ± 20 |
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|
Coupling Ratio |
% |
01/99 |
02/98 |
03/97 |
05/95 |
10/90 |
15/85 |
20/80 |
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Max. Insertion Loss |
dB |
21.4/0.2 |
18.5/0.25 |
17.4/0.3 |
14.5/0.4 |
10.8/0.65 |
8.8/0.95 |
7.5/1.2 |
|
Coupling Ratio |
% |
25/75 |
30/70 |
35/65 |
40/60 |
45/55 |
50/50 |
- |
|
Max. Insertion Loss |
dB |
6.5/1.55 |
5.6/1.8 |
5/2.25 |
4.4/2.5 |
3.85/2.98 |
3.4 |
- |
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Max. PDL (Tap/Through Port) |
dB |
0.1 |
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Max. Excess Loss |
dB |
0.1 |
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Thermal Stability |
dB/℃ |
≤ 0.002 over - 5 °C to + 70 °C |
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Min. Return Loss |
dB |
50 |
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Directivity 1 × 2 |
dB |
55 |
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2 × 2 |
dB |
60 |
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Max. Optical Power (CW) |
mW |
300 |
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Fiber Type |
- |
SMF-28 fiber |
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Operating Temperature |
℃ |
- 5 to + 70 |
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Storage Temperature |
℃ |
- 40 to + 85 |
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