Tektronix OM2210 User manual

OM2210

ZZZ

Coherent Receiver Calibration Source

User Guide

*P071305001*

071-3050-01

OM2210

ZZZ

Coherent Receiver Calibration Source

User Guide

www.tektronix.com

071-3050-01

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Speciﬁcations and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc. 14150 SW Karl Braun Drive P.O. Box 5 0 0 Beaverto USA

For product information, sales, service, and technical support:

n, OR 97077

In North America, call 1-800-833-9200. Worl dwid e, v isit www.tektronix.com to ﬁnd contacts in your area.

Warranty

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty work may be n the property of Tektronix.

ew or reconditioned to like new performance. All replaced parts, modules and products become

In order to o the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage result b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modiﬁed or integrated with other products when the effect of such modiﬁcation or integration increases the time or difﬁculty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

TRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE

TEK AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

[W2 – 15AUG04]

btain service under this warranty, Customer must notify Tektronix of the defect before the expiration of

ing from attempts by personnel other than Tektronix representatives to install, repair or service the product;

1 SAFETY INFORMATION ...................................................................................................................... 5

1.1 SAFETY NOTICES ............................................................................................................................. 5

1.2 LASER SAFETY ................................................................................................................................. 5

1.3 OM2210 LASER LABELS AND LOCATIONS .......................................................................................... 6

2 INTRODUCTION ................................................................................................................................... 7

2.1 PURPOSE ......................................................................................................................................... 7

2.2 THE OPTAMETRA CALIBRATION APPROACH ....................................................................................... 7

3 GETTING STARTED ........................................................................................................................... 10

3.1 CONFIGURING THE HARDWARE ....................................................................................................... 10

4 OPTAMETRA CALIBRATION SOFTWARE ........................................................................................ 18

4.1 INSTALLATION ................................................................................................................................ 18

4.2 OPERATION .................................................................................................................................... 18

4.3 RESULTS ....................................................................................................................................... 25

5 MAINTENANCE AND CLEANING ...................................................................................................... 26

5.1 MAINTENANCE................................................................................................................................ 26

5.2 CLEANING ...................................................................................................................................... 26

6 APPENDIX A – REFERENCE DOCUMENTS .................................................................................... 27

6.1 SOFTWARE LICENSE AGREEMENT .................................................................................................... 27

CAUTION

WARNING

CAUTION

1 Safety Information

1.1 Safety Notices

Indicates a potentially hazardous condition or procedure that could result in damage to the instrument.

Indicates a potentially hazardous condition or procedure that could result in minor or moderate bodily injury.

Indicates a potentially hazardous condition or procedure that could result in serious injury or death.

This symbol on the unit indicates that the user should consult this document for further information regarding the nature of the potential hazard and actions that should be taken to

avoid or mitigate the hazard.

1.2 Laser Safety

The laser sources included in this product are classified according to IEC/EN 60825-1: 1994+A1:2001+A2:2001 and IEC/EN 60825-2:2004 This laser product complies with 21CFR1040.10 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007.

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Under no circumstances should you use any optical instruments to view the laser output directly.

Indicates the

INVISIBLE LASER RADIATION; DO NOT VIEW DIRECTLY WITH

EMISSION DE RAYONS LASER INVISIBLES DE CLASSE 1M.

OM2210

1.3 OM2210 Laser Labels and Locations

location of a

laser aperture

OPTICAL INSTRUMENTS. CLASS 1M LASER PRODUCT

 

EV H

2 Introduction

2.1 Purpose

The Optametra calibration products, featuring the OM2210 Calibration Source and Optametra‟s proprietary software, are used in laboratory or industrial facilities to calibrate coherent fiber optic receivers. These products are primarily targeted for calibrating polarization-diverse, phase-diverse receivers that are linear or can be set in a linear mode. The end result is a transfer matrix, measured at a particular heterodyne frequency over a specified wavelength range, which describes the optical-to-electrical transfer function of the analog portion of the receiver. The transfer matrix is then used to compute critical receiver specifications such as quadrature phase angle, polarization cross-talk, and path gains. This information can be used for quantitative evaluation of the receiver, or to provide calibrated optical field measurements when used with the Optametra signal analysis software.

2.2 The Optametra Calibration Approach

Optical communications signals can be described as the combination of a continuous (cw) laser field and a modulation field which carries the data. In the case of polarization multiplexed signals, there can be as many as two independent lasers and modulators that are polarization multiplexed together. Optametra signal processing software is designed to extract the cw and modulation for each polarization from which data and signal quality metrics may be extracted. Since the software extracts fields, not just data, it is necessary to have independent measurements of the receiver properties so that the effect of the receiver may be removed. This process consists of a lowfrequency measurement of the linear OE transfer matrix relating the input field vector, E, to the output voltages, V, and a separate frequency response measurement. The Optametra calibration kit is provided to measure the linear OE transfer matrix, H, at frequencies well within the oscilloscope

bandwidth. This process can be applied both to linear receivers like the Optametra OM3105 as well as

receivers with automatic gain control (AGC ) such as commercial coherent receivers. The AGC must be turned off during the calibration so that the software can measure the linear portion of the transfer function. The matrix can then be normalized to simulate the AGC operation.

+ 22 hidden pages

Tektronix OM2210 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

1 Safety Information

2 Introduction