Singlemode Dual Window Wavelength Flattened Coupler
The Singlemode Dual Window Wavelength Flattened Coupler offers very low insertion loss, low polarization dependent loss and excellent environmental stability. This coupler series offers accurate coupling ratios from 1/99 to 50/50 and is available with very good uniformity in a wide wavelength range of both 1310 nm and 1550 nm windows. These components find extensive applications to perform power splitting and mornitoring functions in all kinds of optical communication systems.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Center Wavelength λc | 1310 and 1550 or specify |
| Operating Wavelength Range | λc±40 |
| Max. Insertion Loss [Coupling ratio 01/99；each connector adds 0.3 dB insertion loss.] | 22/0.19 |
| Max. Insertion Loss [Coupling ratio 02/98；each connector adds 0.3 dB insertion loss.] | 19/0.25 |
| Max. Insertion Loss [Coupling ratio 03/97；each connector adds 0.3 dB insertion loss.] | 17.5/0.3 |
| Max. Insertion Loss [Coupling ratio 05/95；each connector adds 0.3 dB insertion loss.] | 14.5/0.4 |
| Max. Insertion Loss [Coupling ratio 10/90；each connector adds 0.3 dB insertion loss.] | 11/0.75 |
| Max. Insertion Loss [Coupling ratio 20/80；each connector adds 0.3 dB insertion loss.] | 7.8/1.3 |
| Max. Insertion Loss [Coupling ratio 30/70；each connector adds 0.3 dB insertion loss.] | 5.9/1.9 |
| Max. Insertion Loss [Coupling ratio 40/60；each connector adds 0.3 dB insertion loss.] | 4.6/2.7 |
| Max. Insertion Loss [Coupling ratio 50/50；each connector adds 0.3 dB insertion loss.] | 3.5/3.5 |
| Max. Polarization Dependent Loss | 0.10 dB |
| Thermal Stability [Over -5 to +70 °C] | ≤0.002 dB/°C |
| Min. Return Loss [With connector, return loss is 5 dB lower.] | 50 dB |
| Directivity [1×2] | 55 dB |
| Directivity [2×2] | 60 dB |
| Max. Optical Power (CW) | 300 mW |
| Fiber Type | SMF-28 Fiber |
| Operating Temperature | -5 to +70 °C |
| Storage Temperature | -40 to +85 °C |
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