HP 71452B Optical Spectrum Analyzer

The HP 71452B optical spectrum analyzer is optimized for EDFA and WDM component testing. The polarization sensitivity is improved to ±0.05 dB from 1542 to 1562 nm, the scale fidelity has been reduced to 0.05 dB, and the wavelength accuracy has been improved to ±0.2 nm (typically 0.05 nm). In addition option 122 further enhances the resolution bandwidth accuracy and dynamic range performance (see specifications).

A built in stimulus response mode enables fast and accurate loss versus wavelength characterization of components using either the HP 83437A LED or the HP 83438A ASE broadband sources. Option 031 DWDM test kit includes an HP 83438A ASE source and an HP 11896A polarization controller with the HP 71452B optical spectrum analyzer. This enables polarization dependent loss versus wavelength characterization of DWDM components such as WDM filters and Bragg gratings along with broadband components such as isolator and couplers.

Also included are three EDFA measurement personalities: ASE Interpolation, Time Domain Extinction (TDE), and Noise Gain Profile (NGP).

The ASE Interpolation and TDE personalities provide a quick and easy way to measure large signal gain, noise, and a variety of parameters at a single wavelength. With the addition of the appropriate member of the HP 8168 family of tunable laser sources, multiple wavelengths can be measured. The NGP personality provides a fast way to measure the small signal gain and noise figure of an amplifier with a saturating signal. The three personalities are available for the HP 71450B and HP 71451B by ordering Options 051, 052, and 053.

[ Features ]

9 µm input fiber
Built-in EDFA measurement routines (ASE interpolation, time domain extinction, noise gain profile)
Optimized for WDM component and optical amplifier testing

[ Specifications ]

Wavelength
	Absolute accuracy [1] (after user cal)			±0.2 nm
                              (after user cal [2,9])		±0.5 nm

			 
Resolution Bandwidth [1]		
                FWHM			                        <0.08 and 0.1 to 10 nm in a 1,2,5 sequence
        	FWHM of <0.08 nm setting		        0.065 nm ±15%

Amplitude
	Scale fidelity [5]
		autorange off (sample detector)			±0.05 dB
		autorange on (sample detector)			±0.07 dB

	Polarization dependence [1,6]
		1250 - 1600 nm [1]				±0.5 dB
		1300 - 1320 nm					±0.125 dB
		1542 - 1562 nm					±0.05 dB
		 750 - 1600 nm [2]				±1.5 dB
		 600 - 1700 nm [2]				±2.5 dB

        Sensitivity [4]
	        1200 - 1600 nm				        -90 dBm

        Dynamic Range [1,8]
	        1250 - 1600 nm (chop mode off)		        -55 dB > ±0.5 nm
						                -60 dB > ±1 nm
	        1250 - 1600 nm (chop mode on)		        -70 dB > ±0.5 nm

        Option 122				
	        1250 to 1600 nm (chop mode off)[2]	        -60 dB > ±0.4 nm
						                -68 dB > ±0.8 nm

	        1250 to 1600 nm (chop mode off)[10]	        -58 dB > ±0.5 nm
						                -65 dB > ±1 nm
Pulse Mode
	Turn On >2 us pulse width				±0.2 dB
	Turn Off  >10 us pulse width and 30 dB extinction	±0.2 dB

Signal-to-Noise[7] 	CW					±0.16
			Pulse Mode				±0.25


Weight:				                                28 kg (61.6 lb)

Dimensions: (H x W x D)		                                222 x 425.4 x 526 mm
		            	                                8.75 x 16.75 x 20.7 in



[1]	With applied input fiber 9/125 µm
[2]	Characteristic
[3]	Temperature range 20° to 30°C
[4]	Signal value >6 times the RMS noise value
[5]	to within 15 dB of the sensitivity noise limit
[6]	for resolutions >0.2 nm
[7]	Calculated from specified values; 1.15 x RSS of polarization 
        sensitivity, scale fidelity, RBW accuracy.
[8]     In a 0.1 nm resolution bandwidth
[9]     Within 40 nm of the calibration signal
[10]    In a 0.2 nm resolution bandwidth

[ Ordering ]

HP 71452B Optical Spectrum Analyzer Opt 001 Built-in programmable current source Opt 002 Built-in white light source Opt 010 Delete FC/PC interface Opt 031 DWDM component test kit Opt 122 Improved dynamic range

[ Key Literature ]

HP 71450B, 71451B, 71452B Optical Spectrum Analyzers
Optical Spectrum Analysis Basics
EDFA Testing with the Interpolation Technique PN 71452-1
EDFA Testing with the Time Domain-Extinction Technique PN 71452-2
EDFA Noise Gain Profile and Noise Gain Peak Measurements PN 71452-3
Pulsed or Time-Dependent Optical Spectra Measurements PN 71452-4

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[ Assistance ]

To help you make the right instrument choices

Local Sales Office

[ Related ]

Related product families available online:

HP70000

Optical Spectrum Analyzers