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O/E  Module MN4765B OM

PN: 10410-00742  Rev. H

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Chapter 1 — Overview

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Introduction

The MN4765B is a characterized, unamplified photodiode module. It is used 
as an optical receiver with the Anritsu MS464xB and MS4652xB Series 
VNAs to perform highly accurate and stable optoelectronic measurements of 
both modulators (E/O) and photoreceivers (O/E). Bandwidth and wavelength 
coverage depends on the option selected when the module is ordered. The 
MN4765B allows error-corrected Transfer Function, Group Delay, and 
Return Loss measurements of optoelectronic components.
Throughout this manual, the terms MN4765B and O/E Calibration Module 
will be used interchangeably to refer to the MN4765B.
The MN4765B is also part of the VectorStar-based ME7848A series of 
Opto-electronic Network Analyzer systems. This system packaging (-0200 
versions also include an E/O Converter) allow higher level testing and 
specifications to be provided for O/E, E/O and O/O measurements.

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MN4765B Characterization 

The accuracy and longevity of any characterization depends on the ability to 
take care of the module, especially the connectors. Understanding the 
maximum rated specifications and performing proper cleaning of the 
electrical and optical connectors is essential.

Characterization

The MN4765B module is serialized and comes with a characterization in 
relative magnitude and phase with a specified uncertainty from 70 kHz up to 
110 GHz (depending on the option ordered). A copy of the characterization 
can be found on the USB memory device that ships with the module. If a 
replacement copy of the characterization is required, contact Anritsu 
Customer Service at: 

www.anritsu.com

Содержание MN4765B

Страница 1: ...765B O E Calibration Module Part Number 10410 00742 Revision H Published October 2019 Copyright 2019 Anritsu Company All Rights Reserved Anritsu Company 490 Jarvis Drive Morgan Hill CA 95037 2809 USA...

Страница 2: ......

Страница 3: ...tar Vector Network Analyzers 1 3 ShockLine Vector Network Analyzers 1 3 MN4765B Specifications 1 4 ME7848A Specifications 1 4 Chapter 2 Installation 2 1 Introduction 2 1 2 2 Unpacking and Initial Insp...

Страница 4: ...le MN4765B OM Table of Contents Continued Appendix A Supplemental Information A 1 Characterization Files A 1 A 2 Optical Measurement Considerations A 3 Laser Power and Bias Sequencing A 3 Optical Fibe...

Страница 5: ...ased ME7848A series of Opto electronic Network Analyzer systems This system packaging 0200 versions also include an E O Converter allow higher level testing and specifications to be provided for O E E...

Страница 6: ...ration Option 98 Standard Calibrations provide a Certificate of Calibration which certifies that the product has been calibrated in compliance with a quality system registered to ISO 9001 2000 and in...

Страница 7: ...roduct Information Compliance and Safety PICS 10100 00063 This document contains applicable product information compliance statements and safety information including links to applicable product web p...

Страница 8: ...safety information including links to applicable product web pages MS46122A B MS46322A B Series VNA Measurement Guide 10410 00336 MS4652xB Series VNA Measurement Guide 10410 00753 MS46121A B MS46122A...

Страница 9: ...ed against the packing list and the module has been checked for mechanical and electrical operation If the shipment is incomplete or if the test set is damaged mechanically or electrically notify your...

Страница 10: ...uide supplied with the VNA for information and operating instructions with the Anritsu VNA See Anritsu VNA Related Documentation on page 1 3 1 RF Out connector Male K connector on an MN4765B 0040 0042...

Страница 11: ...erformance may change and no data sheet specifications or typical parameters apply for environments outside specified calibrated temperature ranges 4 The green Power LED illuminates when power is bein...

Страница 12: ...onverter that contains the laser source modulator and interconnecting components shown in Figure 2 2 1 Connect the MN4765B RF OUT port to Port 2 of the VNA Other models of VNA can be used but this wil...

Страница 13: ...B OM PN 10410 00742 Rev H 2 5 Installation 2 4 Preparation for Use 2 Connect Port 1 of the MS4647B to the RF Input port of the modulator 3 Connect the output port of the modulator to the Optical In po...

Страница 14: ...2 6 PN 10410 00742 Rev H O E Module MN4765B OM 2 4 Preparation for Use Installation...

Страница 15: ...e The VNA supplies a swept microwave signal over the frequency range of interest to the modulator The MN4765B then converts the modulated optical signal back to an electrical signal that is measured b...

Страница 16: ...modulator portions of the setup It is available in three wavelength models 850 nm 40 GHz 1310 nm 70 GHz and 1550 nm 70 GHz Modulator Bias Controller Optical Patch Cord Measurement Steps 1 Perform a 1...

Страница 17: ...t of the photodiode a polarization controller is recommended to adjust the polarization of the laser input to the modulator DUT This improves the signal to noise ratio of the measurement Note Particul...

Страница 18: ...ollowing tips can help enhance the measurements of E O and O E components Measurement dynamic range can be maximized using a simple polarization controller before a polarization sensitive device The V...

Страница 19: ...hase measurements are generally comprised of multiple phase transitions due to the electrical length of the DUT A representation of phase linearity through the device can be obtained by removing the f...

Страница 20: ...tup using the O E application menu The characterization file for the modulator can be generated using the MN4765B See Appendix A for instructions on generating an s2p file Once the response of the mod...

Страница 21: ...ove in Figure 3 3 on page 3 6 and approximately 95 GHz in the Option 110 example shown in Figure 3 4 below Phase linearity group delay and return loss of the O E DUT can also be extracted from this me...

Страница 22: ...interest Save the calibration for later recall 2 For VectorStar VNAs press the Measurement menu button on the VNA front panel Select the Perform Optical Measurements button then select O E Measurement...

Страница 23: ...peration 3 3 O E Measurements 4 After entering the s2p file for the characterized modulator the VNA is now calibrated and ready to make O E measurements Connect the characterized modulator and detecto...

Страница 24: ...dialog is very similar to that shown for E O and O E measurements see Figure 3 6 below Currently O O measurements are supported by VectorStar One must now either provide two s2p files one for the mod...

Страница 25: ...e select the calibration that was saved in Step 1 3 After loading the VNA calibration load the s2p file for the MN4765B 4 Connect the optical components together as shown in Figure 2 2 on page 2 4 App...

Страница 26: ...cterization Files Supplemental Information 8 The screen should now display S21 magnitude and phase for the E O modulator The data can then be stored as an s2p file by selecting File Save Data and by a...

Страница 27: ...dulator with an FC PC connector at the output will require an optical patch cord to adapt to the FC APC connector on the input of the MN4765B Optical fibers have negligible frequency dependent loss ov...

Страница 28: ...carrier Note that when an MBC is applied it must be designed for small signal operation The default power of the Anritsu VNA providing 70 GHz is such that most commercial modulators will be well withi...

Страница 29: ...O E Module MN4765B OM PN 10410 00742 Rev H A 5 Supplemental Information A 2 Optical Measurement Considerations...

Страница 30: ......

Страница 31: ...Anritsu Company 490 Jarvis Drive Morgan Hill CA 95037 2809 USA http www anritsu com Anritsu utilizes recycled paper and environmentally conscious inks and toner...

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