Скремблер поляризации N7785C
The Keysight Technologies N7785C is a high-speed synchronous scrambler that can repeatably switch through a series of states of polarization (SOP) with both input and output triggering functions.
Характеристики
Производитель
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Keysight Technologies
Модель
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N7785C
Скремблер поляризации N7785C
HIGHLIGHTS
- Comprehensive polarization control and management capabilities
- Wavelength options to cover entire CWDM wavelength range
- <10 µs SOP cycling time
- Robust, no moving optical parts
- As a synchronous scrambler, the device switches the SOP of the output signal in a (pseudo) random but repeatable pattern. Switching of the SOP occurs within a few microseconds. The SOP is stable for a predefined time until it again switches to a new SOP. An electrical trigger input can be used to synchronize the scrambler with external events.
- As an SOP switch, the N7785C allows switching the internal waveplates to user definable angles with very high speed and repeatability.
- As a traditional scrambler, the Keysight N7785C varies the output SOP smoothly in a random walk pattern.
- As a polarization stabilizer, the Keysight N7785C uses feedback via program commands to set and stabilize the SOP base on an external reference.
Документы
| Operating wavelength range |
1240 nm to 1650 nm (Option 001) 1480 nm to 1620 nm (Option 002) |
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| SOP cycling time (τ90 1) | < 10 μs | ||
| Specification wavelength ranges | 1270 – 1375 nm (Option 001) | 1375 – 1460 nm (Option 001) | 1490 – 1620 nm |
| Sensitivity of output power to polarization scrambling, peak to peak, typical 2 | < 1.0 dB | < 1.0 dB | < 0.4 dB (< 0.18 dB at 1550 nm) |
| Insertion loss including reference connectors | Typical < 4.5 dB | Typical < 4.0 dB | < 4.0 dB (< 3.75 dB at 1550 nm) Typical < 3.5 dB (< 3.25 dB at 1550 nm) |
| Maximum safe input power | +20 dBm | ||
2. At constant input power and input state of polarization (SOP). Including output reference connector.