Оптический аттенюатор 81570A
The Keysight 81570A are small, costeffective attenuator modules with high resolution. They feature excellent wavelength flatness and can handle high input power levels. Combined with their low insertion loss, they are ideal for optical amplifier test, such as characterization of EDFAs and of Raman amplifiers, as well as for other multi-wavelength applications, such as DWDM transmission system test. Various calibration features allow the user to set a reference power. Both the attenuation and the power level, relative to the reference power, can then be set and displayed in the user interface. An integrated shutter, which can be used for protection purposes, or to simulate channel drops, is included.
Характеристики
Производитель
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Keysight Technologies
Модель
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81570A
Оптический аттенюатор 81570A
The Keysight 81570A are small, costeffective attenuator modules with high resolution. They feature excellent wavelength flatness and can handle high input power levels. Combined with their low insertion loss, they are ideal for optical amplifier test, such as characterization of EDFAs and of Raman amplifiers, as well as for other multi-wavelength applications, such as DWDM transmission system test. Various calibration features allow the user to set a reference power. Both the attenuation and the power level, relative to the reference power, can then be set and displayed in the user interface. An integrated shutter, which can be used for protection purposes, or to simulate channel drops, is included.
Calibration Processes
Comprehensive offset functionality in the firmware enhances the calibration of the
optical path in various test set-ups. There is an offset for the attenuation factor, and
an independent offset for the output power level, to calibrate for losses due to the patch cords and connectors. Additionally, wavelength and offset value pairs can be stored in a table to compensate for wavelength dependent effects in the optical path of the set-up. This allows you to set the optical power level at your Device Under Test.
Calibration is even easier and more convenient if the reference power meter and the attenuator are hosted by the same mainframe: All power related offsets can be
determined by a firmware function that reads a value from the reference power meter. The difference between the power value read by the reference power meter and the
actual value of the attenuator is automatically stored as the offset.
Key Features
satisfaction through improved quality control.
Calibration Processes
Comprehensive offset functionality in the firmware enhances the calibration of the
optical path in various test set-ups. There is an offset for the attenuation factor, and
an independent offset for the output power level, to calibrate for losses due to the patch cords and connectors. Additionally, wavelength and offset value pairs can be stored in a table to compensate for wavelength dependent effects in the optical path of the set-up. This allows you to set the optical power level at your Device Under Test.
Calibration is even easier and more convenient if the reference power meter and the attenuator are hosted by the same mainframe: All power related offsets can be
determined by a firmware function that reads a value from the reference power meter. The difference between the power value read by the reference power meter and the
actual value of the attenuator is automatically stored as the offset.
Key Features
- High input powers up to 2 Watt
- Excellent wavelength flatness: typical ± 0.05 dB
- Low insertion loss: typical 0.7 dB
- Wide wavelength range: 1200 nm to 1700 nm (SM), 700 nm to 1400 nm (MM)
- High resolution: 0.001 dB
- Modular design allows up to 17 attenuators in one mainframe
- Active power control options to set power levels directly
- Comprehensive offsets allow easy calibration of the set-up
- Integrated shutter
- The Keysight versatile optical connector interfaces for all
- Bit error ratio test
- Characterization of transceivers, receivers, transmitters and line cards
- Test of single channel transmission systems
- DWDM channel equalization
- Loss simulation in fiber optic links
- Testing and calibrating the linearity of power meters
- Optical Amplifier Test
- Characterization of EDFAs
- Test of Raman amplifiers and SOAs
- Multi channel transmission system test
- Loss simulation of DWDM signals in fiber optic links
satisfaction through improved quality control.
Документы
Variable Optical Attenuator Modules (Single Mode Fibers)
| 81570A | 81571A | ||
| Connectivity | Straight connector, versitile interface | Angled connector | |
| Fiber type | 9/125 μm SMF28 | ||
| Wavelength range | 1200 nm to 1700 nm | ||
| Attenuation range | 0 dB to 60 dB | ||
| Resolution | 0.001 dB | ||
| Repeatability 1 | ± 0.01 dB | ||
| Accuracy (uncertainty) 1, 2, 3, 4 |
± 0.1 dB (at 1550 nm) Typ. ± 0.1 dB (1250 nm to 1650 nm) |
||
| Settling time 5 | Typ. 100 ms | ||
| Transition speed | Typ. 0.1 to 12 dB/s | ||
| Attenuation flatness 1, 4, 6, 8 |
± 0.07 dB; typ. ± 0.05 dB (1520 nm < λ < 1620 nm) Typ. ± 0.10 dB (1450 nm < λ < 1640 nm) |
||
| Spectral ripple 7 | Typ. ± 0.003 dB | ||
| Insertion loss 2, 4, 9, 10 |
Typ. 0.7 dB (excluding connectors) < 1.6 dB (typ. 1.0 dB) (including connectors) 11 |
||
| Insertion loss flatness 1, 11 | Typ. ± 0.1 dB (1420 nm < λ <1615 nm) 4 | ||
| Polarization dependent loss 2, 11 | 0.08 dBpp; typ. 0.03 dBpp (at 1550 nm ± 15 nm) | ||
| Return loss 11 | Typ. 45 dB (at 1550 nm ± 15 nm) | Typ. 57 dB (at 1550 nm ± 15 nm | |
| Maximum input power 12 | +33 dBm | ||
| Shutter isolation | Typ. 100 dB | ||
| Dimensions (H x W x D) | 75 mm x 32 mm x 335 mm (2.8” x 1.3” x 13.2”) | ||
| Weight | 0.9 kg | ||
| Recommended recalibration period | 2 years | ||
| Operating temperature | 10 °C to 45 °C | ||
| Humidity | Non-condensing | ||
| Warm-up time | 30 minutes | ||
1. At constant operating conditions
2. Temperature within 23 °C ± 5 °C
3. Input power < +30 dBm
4. For unpolarized light
5. Step size < 1 dB, for full range: typ. 6 seconds
6. Relative to reference at 0 dB attenuation
7. Linewidth of source ≥ 100 MHz
8. λ disp set to 1550 nm; attenuation ≤ 20 dB;
for attenuation > 20 dB:
add typ. 0.01 dB (α [dB] – 20) for 1520 nm < λ < 1620 nm
add typ. 0.02 dB (α [dB] – 20) for 1450 nm < λ < 1640 nm
9. For λ = 1550 nm ± 15 nm
10. Add typ. 0.1 dB for λ = 1310 nm ± 15 nm
11. Measured with Keysight reference connectors
12. Keysight Technologies Deutschland GmbH assumes no responsibility for damages caused by scratched or poorly cleaned connectors.