HP 8703A Lightwave Component Analyzer, .13-20 GHz

As the transmission rate or bandwidth of fiber optic systems is pushed upward, high frequency design considerations become essential. The HP 8703A measures each of the system elements that transmit these wide bandwidths. The lightwave component analyzer operates with a swept modulation frequency to precisely characterize how lasers, LEDs, photodiodes, and electro-optic modulators operate with a high-speed information-bearing signal similar to an RF/µW network analyzer.

Measurements can be made on connectors, splitters, couplers, and lenses, as well as fiber. This yields insertion loss, length, and optical return loss. In the distance-time domain, reflections can be located without the dead zone typical of OTDR type measurements. Transmission measurements can also be displayed in the distance-time domain to view the impulse or step response of the component. Delay and dispersion are easily viewed in this manner.

When used to measure linear electrical components, such as amplifiers, filters, and transmission lines, the lightwave component analyzer has the full measurement capability of a microwave network analyzer. Typical measurements are bandwidth, insertion loss/gain, phase, impedance, match, and group delay.

[ Features ]

300 kHz to 20 GHz modulation frequency
Calibrated frequency response measurements of high-speed optical, electro-optical, and electrical components
1300, or 1550 nm operation
Reflection measurements with <1 mm resolution <5 mm two-event resolution up to 50 dB optical dynamic range

[ Specifications ]

Electrical Source Specifications

	Frequency
		Range:		130 MHz to 20 GHz
		Resolution:	1 Hz

	Output
		Power Range:  	+5 to -50 dBm in 5 dB steps at Port 1; -15 to -70 dBm
				in 5 dB steps at Port 2.
		Power Level:	+5 dBm ±3 dB at Port 1; -15 dBm plus coupler roll-off at Port 2.
		Harmonics:	<-20 dBc at +5 dBm (typical)

	Test Ports
		Connector Type:       3.5 mm (male)
		Impedance:            50 ohms nominal
		Maximum Input Level:  +20 dBm
		DC Bias:              500 mA, 40 Vdc max


Dynamic Range (Typical)

	Frequency Range:                      0.13 to 20 GHz
	Lightwave Forward
		Transmission Test:
		Optical-to-Optical            >40 dB
		Optical-to-Electrical         >100 dB
		Electrical-to-Optical         >70 dB
	Lightwave Reflection Test
		Optical-to-Optical            >30 dB
	Electrical Forward Transmission (S21) >90 dB
	Reverse Transmission (S12)
		0.13 to 0.5 GHz		      >40 dB
                0.5to 2 GHz                   >60 dB
		2 to 20 GHz		      >70 dB

Lightwave Source Characteristics
        Wavelength:                           1308 or 1550 nm, +/-10 nm
        Spectral width:                       50 MHz
        Average optical output power:         70 to 600 µW
        Modulated optical output power (p-p): 90 to 130 µW
        Modulation index:                     25%
        Optical return loss:                  15 dBo

Lightwave Receiver Characteristics
        Wavelength:                           1298 to 1560 nm
        Input modulation bandwidth:           130 MHz to 20 GHz
        Max average input power op. level:    5 mW
        System sensitivity: 20 nW
        Input port return loss: 20 dBo


General Specifications

Weight:                                       50 kg (110 lb)

Dimensions:  (H x W x D)                      370 x 425 x 502 mm
                                              14.57 x 16.73 x 19.76 in.
Allow 50 mm (2.0 in.) additional depth for front panel connectors.

[ Ordering ]

HP 8703A Lightwave Component Analyzer, .13-20 GHz Opt 01X Select Optical Connector Opt 100 External Lightwave Source Input Opt 210 1550 nm DFB Laser Opt 220 1300 nm DFB Laser Opt 300 Additional Lightwave Receiver Opt 804 Delete HP 9122 disk drive & HP-IB cable Opt 830 3.5mm economy cal. kit & test port cable Opt 908 Rackmount kit Opt 910 Extra operating and service manual set

Standard configuration includes a laser and one 1300/1550 nm receiver. One laser option must be specified when ordering. The external lightwave source input (Option 100) is used with lasers of the following wavelength: 1530 to 1570 nm (with Option 210) 1290 to 1330 nm (with Option 220) The HP 83424A and 83425A are lightwave CW sources recommended for use with Option 100.

[ Key Literature ]

HP 8703A Lightwave Component Analyzer
HP 8703A Lightwave Component Analyzer

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[ Related ]

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Component Analyzers