The Keysight Agilent 86140A is a high-performance benchtop optical spectrum analyzer (OSA) designed for demanding research and development (R&D) and high-throughput manufacturing environments. Offering high wavelength accuracy, exceptional dynamic range, and flexible measurement capabilities, the 86140A provides accurate analysis for WDM systems, optical amplifiers, and active laser sources.

Specifications

General

ParameterValue
InterfacesGPIB (HP-IB), RS-232, Parallel Printer Port, VGA Output, Analog Output, Trigger Input/Output, PS/2 Keyboard/Mouse Ports
Display6.4-inch active matrix color LCD

Physical

ParameterValue
Power Supply90 V to 260 V AC, 47 Hz to 63 Hz, < 230 VA
Operating Temperature0 to +55 °C
Dimensions (W×H×D)425 mm × 222 mm × 509 mm
Weight16.5 kg

Wavelength Specifications

ParameterValue
Wavelength Range600 to 1700 nm
Wavelength Accuracy±0.5 nm (600 to 1700 nm), ±0.2 nm (1525 to 1570 nm)
Wavelength Reproducibility±0.01 nm
Wavelength Temperature Dependence±0.01 nm/°C
Minimum Span0.2 nm
Maximum Span1100 nm
Wavelength Tuning Repeatability±0.003 nm

Resolution Bandwidth (RBW)

ParameterValue
Resolution Bandwidth Settings (FWHM)0.07, 0.1, 0.2, 0.5, 1, 2, 5, 10 nm
Resolution Bandwidth Accuracy±3% (at 1550 nm, 0.07 to 2.0 nm settings)
Minimum Resolvable Wavelength Spacing0.07 nm

Amplitude and Power Specifications

ParameterValue
Power Measurement Range-90 to +10 dBm
Minimum Input Decibel-90 dBm
Maximum Input Decibel+10 dBm
Maximum Safe Input Power+20 dBm
Amplitude Accuracy±0.5 dB (at 1550 nm)
Amplitude Flatness±0.2 dB (1525 to 1570 nm)
Amplitude Linearity±0.05 dB (for -50 to +10 dBm)
Dynamic Range at ±0.5 nm offset-50 dB
Dynamic Range at ±1.0 nm offset-55 dB
Polarization Dependence±0.15 dB (1525 to 1570 nm)
Noise Floor (Sensitivity)-90 dBm (1250 to 1610 nm)

Sweep and Measurement Performance

ParameterValue
Minimum Sweep Time180 ms
Sweep Time (50 nm Span)180 ms
Number of Trace Points51 to 10001

Optical Interface and Calibration

ParameterValue
Optical Input Connector TypeKeysight/HP Universal Adapter (FC, SC, ST, etc.)
Optical Input Fiber Type9/125 µm Single-Mode Fiber
Internal Calibration Source Wavelength1520 to 1560 nm (with Option 006)
Optical Port Return Loss>35 dB
Optical Alignment FunctionAutomatic optical alignment for input optimization

Analysis and Application Software

ParameterValue
WDM Channel AnalysisBuilt-in channel power, wavelength, spacing, and SNR measurements
Optical Amplifier AnalysisBuilt-in Erbium-Doped Fiber Amplifier (EDFA) Gain & Noise Figure (NF) analysis
DFB Laser AnalysisBuilt-in center wavelength, SMSR, and bandwidth characterization
FP Laser AnalysisBuilt-in peak wavelength, FWHM, and mode spacing characterization
LED AnalysisBuilt-in mean wavelength, FWHM, and total power characterization
Passive Component Test FunctionsBandpass filter, isolation, insertion loss, and crosstalk analysis
Multi-wavelength AnalysisSimultaneous evaluation of multiple spectral peaks
Marker and Trace Functions6 active traces, delta markers, peak search, active tracking

Connectivity and Interfaces

ParameterValue
GP-IB (IEEE-488) InterfaceDual ports (HP-IB system control & external controller)
RS-232 Interface9-pin D-sub port
External VGA Output15-pin D-sub connector
Parallel Printer Port25-pin D-sub (Centronics)
Floppy Disk Drive3.5-inch 1.44 MB MS-DOS compatible
Trigger Input / OutputBNC connectors (TTL levels)

Environmental and Compliance

ParameterValue
Warm-up Time40 minutes

Configuration and Options

ParameterValue
Optical Connector Interface OptionsFC/PC, SC, ST, DIN, HMS-10
Option 001Current source output
Option 002Built-in white light source
Option 006Built-in wavelength calibrator

Options

ParameterValue
Option 004Built-in 1310 nm EELED source
Option 005Built-in 1550 nm EELED source

Option Specifications

ParameterValue
Option 001 Current Source Range0 to ±100 mA
Option 001 Current Source Voltage Limit±2.7 V (compliance voltage)
Option 002 Source Wavelength Range900 nm to 1700 nm

Measurement Resolution

ParameterValue
Wavelength Display Resolution0.001 nm
Amplitude Display Resolution0.01 dB

Power Requirements

ParameterValue
Maximum Power Consumption230 VA

Environmental Specifications

ParameterValue
Operating AltitudeUp to 4,600 m
Storage AltitudeUp to 15,240 m

Compliance

ParameterValue
Electromagnetic CompatibilityConforms to CISPR Pub. 11 Group 1, Class A

Optical Performance

ParameterValue
Monochromator TypeSingle-pass

System & Programming

ParameterValue
Command SetSCPI (Standard Commands for Programmable Instruments)

Interfaces

ParameterValue
Keyboard ConnectorPS/2 mini-DIN

Built-in Source Options

ParameterValue
Option 002 Spectral Power Density>= -55 dBm/nm (900 nm to 1700 nm, -50 dBm/nm typical)
Option 003 EELED Output Power Density>= -40 dBm/nm (at 1310 nm and 1550 nm)

Technology

Optical Spectrum Analysis

Applications

Fiber Optic Communications Test & Measurement