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--Power Sensor & Optical Head--Agilent N7751A 1-Channel Optical Attenuator and 2-Channels Power Meter
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Home Optical Power Meter >> Power Sensor & Optical Head >> Agilent N7751A 1-Channel Optical Attenuator and 2-Channels Power Meter
Power Sensor & Optical Head
Agilent N7751A 1-Channel Optical Attenuator and 2-Channels Power Meter
Manufacturer:
  Agilent
Model:
  N7751A
Condition:
  Used
Availability:
  1
Price:
  $4,550.00
Qty:
Description:
Option-022

   Feature
Used, like brand new.

N7751A Integrated 1 Channel Variable Optical Attenuator with 2 Optical Power Meter Channels

Key Features & Specifications

Measurement capability: attenuator

  • settling time: 20 ms attenuation, 100 ms power
  • 0.1 to 1000 dB/s attenuation transition speed (selectable)
  • +23 dBm input power
  • ≤ 1.2 dB insertion loss

Measurement capability: power meter

  • Wavelength range: 1260-1640 nm
  • Power range: -80 to +10 dBm
  • Polarization dependence: <0.01 dB

System capability

  • One attenuator channel and two power meters in one half-width rack unit
  • Fully compatible with programs developed using the Keysight 8157x and 8156x modular attenuators
  • Includes powerful and user-friendly GUI software
  • Two instrument configurations can be stored and recalled

Description

The Keysight N7751A combines an attenuator with 2 front-panel power meter channels, offering exceptional performance at a low price. The power meters permit measurements from any point in the measurements setup and assist in calibrating power offsets with respect to the attenuator output.

Extension of N77xx-series

The N7751A attenuator is an extension to Keysight’s high density N77xx-family that establishes a new standard in space-saving fiberoptic instrumentation.

Features and Benefits

  • Compact instrument combines and integrates multiple functions for setting attenuation and power levels and optical power measurement to reduce CAPEX and floor space.
  • Fast and precise setting of optical power levels with settling times of 100 ms for improved test throughput.
  • Active power control to keep output power constant
  • The power meters support convenient power offset calibration of the attenuators.
  • The instrument can be controlled via LAN and USB, as well as GPIB for compatibility with existing equipment.
  • An easy-to-use and intuitive graphical user interface software speeds up the integration process.

Applications

  • Optical transceiver testing
  • Optical network integration testing
   Details

Single-mode fiber optical attenuators

N7751A, N7752A, N7761A, N7762A, N7764A

Connectivity

FC/APC angled (Option -022) or

FC/PC straight (Option -021) contact connector interface

Fiber type

9/125 μm SMF 28

Wavelength range

1260 nm to 1640 nm

Attenuation range

0 dB to 40 dB (45 dB typ.)

Attenuation setting mode

Power setting mode

Range

0 dB to 40 dB

–50 dBm to +20 dBm

Resolution

0.01 dB

0.01 dB

Repeatability1

typ. ± 0.05 dB for attenuation 0 dB to 30 dB

typ. ± 0.10 dB for attenuation 30 dB to 40 dB

± 0.025 dB

Accuracy (uncertainty) 1 – 3

typ. ± 0.10 dB for attenuation 0 dB to 10 dB

typ. ± 0.15 dB for attenuation 10 dB to 20 dB

typ. ± 0.40 dB for attenuation 20 dB to 40 dB

Relative accuracy (uncertainty)

± 0.05 dB ± 300 pW

Polarization dependent loss 5

typ. ≤ 0.15 dBPP for attenuation 0 dB to 10 dB

typ. ≤ 0.25 dBPP for attenuation 10 dB to 20 dB

typ. ≤ 0.5 dBPP for attenuation 20 dB to 40 dB

≤ 0.15 dBPP 6

Settling time

typ. 20 ms 7

typ. 100 ms 6

Insertion loss 8

typ. ≤ 1.2 dB (excluding connectors)

≤ 2.2 dB (including connectors) 9

Attenuation transition speed

selectable from 0.1 to 1000 dB/s

Relative uncertainty of monitor power meter 2, 10

± 0.05 dB ± 300 pW

Averaging time of monitor power meter

2 ms to 1 s

Return loss

typ. 45 dB

Maximum safe input power

+23 dBm if applied to input port; < +18 dBm if applied to output port

Optical path blocking

typ. 45 dB

Optical power meter

N7751A and N7752A

Sensor element

InGaAs

Wavelength range

1260 nm to 1640 nm

Specification wavelength range

(1310 ± 15) nm, (1490 ± 10) nm, (1550 ± 15) nm

Power range

80 dBm to +10 dBm

Maximum safe power

+16 dBm

Averaging time

2 ms to 1s

Applicable fiber type

Standard SM and MM ≤ 62.5 μm core size, NA ≤ 0.24

Uncertainty at reference conditions 1, 3

± 2.5%

Total uncertainty 2, 5, 6

± 4.5%

Linearity 7

at (23 ± 5)°C

over operating temperature

± 0.02 dB

± 0.04 dB

Polarization dependent responsivity (PDR) 3, 8

typ. < ± 0.01 dB (1260 nm to 1580 nm)

Spectral ripple (due to interference) 10

typ. < ± 0.01 dB

Drift (dark) 4

± 9 pW

Noise pp (dark) 3, (1s averaging time, 300s observation time)

< 7 pWpp

Return loss 9

typ. > 57 dB

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