O/E Calibration Module (70 kHz to 40/70/110/145 GHz)

MN4765B

Characterized, unamplified high-speed photodiode module used as an optical receiver with VNAs to perform highly accurate and stable optoelectronic measurements of E/O and photoreceivers O/E modulators

REQUEST A QUOTE

DOWNLOADS

Overview
Specifications
options
Library

Overview

Description
Features

The MN4765B is a characterized, unamplified high-speed photodiode module. It is used as an optical receiver with the Anritsu MS4640B Series VectorStar VNAs to perform highly accurate and stable optoelectronic measurements of both modulators (E/O) and photoreceivers (O/E). The MN4765B is the base calibration module part number only. Customers are required to also order an option to configure the bandwidth and wavelength coverage.

The MN4765B with option 70 configures the calibration module for 70 kHz to 70 GHz frequency and 1550 nm wavelength coverage. This option consists of a high-speed photodiode that converts modulated optical signals to electrical signals and includes additional circuitry for temperature and bias stability. The high-speed photodiode has exceptional bandwidth response to 70 GHz and a typical responsivity of 0.7 A/W. Option 71 is configured from 70 kHz to 70 GHz and 1310 nm, while Option 72 is configured from 70 kHz to 70 GHz at both 1310 and 1550 nm.

Option 110 configures the module for 70 kHz to 110 GHz and 1550 nm. Option 111 configures the module for 70 kHz to 110 GHz and 1310 nm, while Option 112 configures the module from 70 kHz to 110 GHz at both 1310 and 1550 nm.

The MN4765B with Option 140 configures the module for 70 kHz to 145 GHz and 1550 nm.The MN4765B is the first O/E module with traceability to a recognized National Metrology Institute up to 145 GHz and all O/E modules are characterized in both magnitude and phase using a NIST derived calibration standard up to 110 GHz.

Fast and accurate optoelectronic measurements- The MS4640B VectorStar series VNAs, when calibrated using the MN4765B module, enable error-corrected Transfer Function, Group Delay, and Return Loss measurements of E/O and O/E components and subsystems
National Institute of Standards and Technology derived characterization - Magnitude and phase characterization is obtained using a primary standard characterized by NIST and held in the Anritsu Calibration Lab. The magnitude and phase data is provided on a USB drive with the module
Temperature Stable - The MN4765B is thermally stabilized to eliminate drift in photodiode performance over temperature
Internal Biasing - Accurate bias voltage to the photodiode is maintained internally. An external, multi-country, AC adapter is included for easy operation
High Linearity - Linear operating range to +6 dBm for transfer function measurement uncertainties of <0.45 dB @ 50 GHz and <0.7 dB @ 70 GHz (typical specifications for MN4765B-0070)
High Responsivity - 0.7 A/W and 0.5 A/W (Typical specification for MN4765B-0070 and -0110 respectively)

Specifications

Typical Specifications

Parameter	MN4765B-0140 (Option 140)
Frequency Range	70 kHz to 145 GHz
Operating Wavelength Range	1480 nm to 1620 nm
Characterized Wavelength	1550 nm ± 20 nm (Over the operating wavelength range, the characterization has typically been observed to vary by less than 0.5 dB.)
Linear Optical Input Power	< 6 dBm
Maximum Optical Input Power	10 dBm
Electrical Return Loss	<-7 dB to 70 GHz < -4 dB from 70 to 145 GHz
Optical Return Loss	< –24 dB
DC Responsivity	>0.35 A/W (1550 ± 20 nm)
RF OUT Connector	0.8 mm male

Parameter	MN4765B-0110 (Option 110)
Operating Frequency Range	70 kHz — 110 GHz
Operating Wavelength Range	1480 nm — 1620 nm
Phase Uncertainty (OE output level > -40 dBm)	± 3.0° @ 50 GHz ± 4.1° @ 70 GHz ± 6.5° @ 110 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	± 0.35 dB @ 50 GHz ± 0.48 dB @ 70 GHz ± 0.70 dB @ 110 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	± 0.15 dB @ 50 GHz ± 0.20 dB @ 70 GHz ± 0.30 dB @ 110 GHz

Parameter	MN4765B-0111 (Option 111) 1310 nm
Operating Frequency Range	70 kHz — 110 GHz
Operating Wavelength Range	1300 nm to 1330 nm
Phase Uncertainty (OE output level > -40 dBm)	± 4.5° @ 50 GHz ± 6.5° @ 70 GHz ± 10.7° @ 110 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	± 0.38 dB @ 50 GHz ± 0.57 dB @ 70 GHz ± 0.85 dB @ 110 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	± 0.15 dB @ 50 GHz ± 0.20 dB @ 70 GHz ± 0.30 dB @ 110 GHz

Parameter	MN4765B-0112 (Option 112) –1550nm	MN4765B-0112 (Option 112) –1330nm
Operating Frequency Range	70 kHz — 110 GHz	70 kHz — 110 GHz
Operating Wavelength Range	1480 nm — 1620 nm	1300 nm to 1330 nm
Phase Uncertainty (OE output level > -40 dBm)	± 3.0° @ 50 GHz ± 4.1° @ 70 GHz ± 6.5° @ 110 GHz	± 4.5° @ 50 GHz ± 6.5° @ 70 GHz ± 10.7° @ 110 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	± 0.35 dB @ 50 GHz ± 0.48 dB @ 70 GHz ± 0.70 dB @ 110 GHz	± 0.38 dB @ 50 GHz ± 0.57 dB @ 70 GHz ± 0.85 dB @ 110 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	± 0.15 dB @ 50 GHz ± 0.20 dB @ 70 GHz ± 0.30 dB @ 110 GHz	± 0.15 dB @ 50 GHz ± 0.20 dB @ 70 GHz ± 0.30 dB @ 110 GHz

Parameter	MN4765B-0072 (Option 72)
Operating Frequency Range	70 kHz — 70 GHz
Operating Wavelength Range	1300 nm — 1330 nm and 1530 nm — 1620 nm
Characterized Wavelength	1319 nm +/- 10 nm and 1550 nm +/- 20 nm
Phase Uncertainty (OE output level > -40 dBm)	± 3° @ 40 GHz and 1310 nm ± 7° @ 65 GHz and 1310 nm ± 8° @ 70 GHz and 1310 nm ± 3° @ 50 GHz and 1550 nm ± 4° @ 65 GHz and 1550 nm ± 5° @ 70 GHz and 1550 nm
Frequency Response Uncertainty (OE output level > -40 dBm)	± 0.35 dB @ 40 GHz and 1310 nm ± 0.85 dB @ 65 GHz and 1310 nm ± 1.0 dB @ 70 GHz and 1310 nm ± 0.45 dB @ 50 GHz and 1550 nm ± 0.5 dB @ 65 GHz and 1550 nm ± 0.7 dB @ 70 GHz and 1550 nm
Magnitude Response Repeatability (OE output level > -40 dBm)	± 0.15 dB @ 40 GHz ± 0.20 dB @ 65 GHz ± 0.25 dB @ 70 GHz

Parameter	MN4765B-0071 (Option 71)
Operating Frequency Range	70 kHz — 70 GHz
Operating Wavelength Range	1300 nm — 1330 nm
Characterized Wavelength	1319 nm +/- 10 nm
Phase Uncertainty (OE output level > -40 dBm)	± 3° @ 40 GHz ± 7° @ 65 GHz ± 8° @ 70 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	± 0.35 dB @ 40 GHz ± 0.85 dB @ 65 GHz ± 1.0 dB @ 70 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	± 0.15 dB @ 40 GHz ± 0.20 dB @ 65 GHz ± 0.25 dB @ 70 GHz

Parameter	MN4765B-0070 (Option 70)
Operating Frequency Range	70 kHz — 70 GHz
Operating Wavelength Range	1480 nm — 1620 nm
Characterized Wavelength	1550 nm +/- 20 nm
Phase Uncertainty (OE output level > -40 dBm)	± 3° @ 50 GHz ± 4° @ 65 GHz ± 5° @ 70 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	± 0.45 dB @ 50 GHz ± 0.50 dB @ 65 GHz ± 0.70 dB @ 70 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	± 0.15 dB @ 40 GHz ± 0.20 dB @ 65 GHz ± 0.25 dB @ 70 GHz

Parameter	MN4765B-0043 (Option 43)
Operating Frequency Range	70 kHz to 40 GHz
Operating Wavelength Range	800 nm to 1700 nm and 1300 nm to 1330 nm and 1530 nm to 1620 nm
Characterized Optical Wavelength	850 ±20 nm,1060 ±20nm, 1319 nm ±10, and 1550 ±20 nm
Phase Uncertainty (OE output level > -40 dBm)	850 nm: ± 4° @ 20 GHz ± 11° @ 40 GHz 1060 nm: ± 6° @ 20 GHz ± 16° @ 40 GHz 1310 nm: ± 2° @ 20 GHz ± 3.5° @ 40 GHz 1550 nm: ± 2° @ 20 GHz ± 3.3° @ 40 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	850 nm: ± 0.5 dB @ 20 GHz ± 1.6 dB @ 40 GHz 1060 nm: ± 0.5 dB @ 20 GHz ± 1.7 dB @ 40 GHz 1310 nm: ± 0.2 dB @ 20 GHz ± 0.4 dB @ 40 GHz 1550 nm: ± 0.2 dB @ 20 GHz ± 0.4 dB @ 40 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	850 nm: ± 0.15 dB @ 20 GHz ± 0.2 dB @ 40 GHz 1060 nm: ± 0.15 dB @ 20 GHz ± 0.2 dB @ 40 GHz 1310 nm: ± 0.15 dB @ 20 GHz ± 0.2 dB @ 40 GHz 1550 nm: ± 0.15 dB @ 20 GHz ± 0.2 dB @ 40 GHz

Parameter	MN4765B with Option 42
Operating Frequency Range	70 kHz to 40 GHz
Operating Wavelength Range	800 nm to1700 nm
Characterized Optical Wavelength	850 ±20 nm,1060 ±20nm
Phase Uncertainty (OE output level > -40 dBm)	850 nm: ± 4° @ 20GHz ± 11° @ 40 GHz 1060 nm: ± 6° @ 20 GHz ± 16° @ 40 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	850 nm: ± 0.5 dB @ 20 GHz ± 1.6 dB @ 40 GHz 1060 nm: ± 0.5 dB @ 20 GHz ± 1.7 dB @ 40 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	850 nm: ± 0.15 dB @ 20 GHz ± 0.2 dB @ 40 GHz 1060 nm: ± 0.15 dB @ 20 GHz ± 0.2 dB @ 40 GHz

Parameter	MN4765B with Option 40
Operating Frequency Range	70k Hz to 40 GHz
Operating Wavelength Range	800 nm to 890 nm
Characterized Optical Wavelength	850 ±20 nm
Phase Uncertainty (OE output level > -40 dBm)	± 4° @ 20 GHz ± 11° @ 40 GHz
Frequency Response Uncertainty (OE output level > -40 dBm)	± 0.5 dB @ 20 GHz ± 1.6 dB @ 40 GHz
Magnitude Response Repeatability (OE output level > -40 dBm)	850 nm: ± 0.15 dB @ 20 GHz ± 0.2 dB @ 40 GHz

Configuration Options:

Model	Description
MN4765B-0040	Configured for 70 kHz to 40 GHz range, with 850 wavelength coverage
MN4765B-0042	Configured for 70 kHz to 40 GHz range, with 850 and 1060 nm wavelength coverage
MN4765B-0043	Configured with 70 kHz to 40 GHz range, with 850/1060/1310/1550 nm wavelength coverage
MN4765B-0070	Configured for 70 kHz to 70 GHz range, with 1550 nm wavelength coverage
MN4765B-0071	Configured for 70 kHz to 70 GHz range, with 1310 nm wavelength coverage
MN4765B-0072	Configured for 70 kHz to 70 GHz range, with 1310 and 1550 nm wavelength coverage
MN4765B-0110	Configured for 70 kHz to 110 GHz range, with 1550 nm wavelength coverage
MN4765B-0111	Configured for 70 kHz to 110 GHz range, with 1310 nm wavelength coverage
MN4765B-0112	Configured for 70 kHz to 110 GHz range, with 1310 and 1550 nm wavelength coverage
MN4765B-0140	Configured for 70 kHz to 145 GHz range, with 1550 nm wavelength coverage
MN4765B-0098	Standard Calibration, ISO 17025 compliant, without data
MN4765B-0099	Premium Calibration, ISO 17025 compliant, with data

Datasheet	Release Date
VectorStar MS464xB Series Microwave Vector Network Analyzer Technical Data Sheet	07/10/2026
O/E Calibration Module MN4765B Technical Data Sheet	02/12/2025
Opto-electronic Network Analyzer ME7848A Technical Data Sheet	21/08/2025
O/E Calibration Module Declaration of Conformity	21/07/2025

Application Note	Release Date
Electro-Optical Measurements Using Anritsu VNAs	28/10/2025
145 GHz Optical-to-Electrical Measurement Solution Application Flyer	28/10/2025