Altechna PowerXP Manuale utente

Watt Pilot

Motorized

Attenuator

Quick Start Guide

PowerXP

Compact Motorized

Attenuator

User Manual

2019 version L.4.00

Contents

1. Introduction 3

1.1. PowerXP short description 3

1.2. General safety requirements 4

1.3. Regulation 4

1.4. Operating and storage conditions 5

2. Operation Principle 5

3. Package Contents 6

3.1. Optics (dis)assembling 6

4. PowerXP Soware Description 7

4.1 “AltOne” soware 7

4.2. Computer requirements 7

4.2. Soware installation 7

4.3 Program first run 10

4.4. “Select Device” tab page 10

4.5. “Calibration” tab 11

4.6. “PowerXP” tab 13

4.7. “Settings” tab 14

4.8. “User Manual” tab 15

4.9 “About” tab 15

5. PowerXP Controller Hardware 16

5.1. Controller specifications 16

5.2. Controller usage 16

6. Serial and Ethernet Communication 17

6.1 Serial protocol description 17

6.2 Ethernet protocol description 18

6.3 Command execution 18

6.4 Controller Commands 21

7. Main Dimensions 23

7.1. PowerXP 23

7.2. PowerXP Controller 23

PowerXP

April 2019

No part of this manual, including the products and soware described in it, may be

reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any

language in any form or by any means, except documentation kept by the purchaser for backup

purpose, without the express written permission of UAB Altechna (hereinaer Altechna).

Product warranty or service will not be extended if:

1. The product is repaired, modified or altered. Unless such repair, modification of alteration

is authorized in writing by Altechna.

2. The LOT number of the product is defaced or missing.

Altechna provides this manual “as is” without warranty of any kind, either express or

implied, including but not limited to the implied warranties or conditions of merchantability

for a particular purpose. In no event shall Altechna, its directors, employees or agents be

liable for any indirect, special incidental, or consequential damages (including damages

for loss of profits, loss of business, loss of use or data, interuption of business and the like),

even if Altechna has been advised of the possibility of such damages arising from any defect

or error in this manual or product.

Specifications and information contained in this manual are furnished for informational use

only, and are subject to change at any time without notice, and should not be construed as

a commitment by Altechna. Altechna assumes no responsibility or liability for any errors or

inaccuracies that may appear in this manual, including the products and soware describedin it.

This manual is directly connected to firmware version. Latest firmware, soware and

manual versions can be downloaded from www.altechna.com.

Products and corporate names appearing in this manual may or may not be registered

trademarks or copyrights of their respective companies, and are used only for identification or

explanation and to the owner’s benefit, without intent to infringe.

1. Introduction

This user manual is designed to help to install and operate PowerXP. Before installing and

operating PowerXP please read installation and operation instructions carefully. Safety

instructions must be read carefully. If there are any questions about contents of this manual,

please contact [email protected]om. Altechna reserves the right to update contents of this

manual without any notification.

1.1. PowerXP short description

Compact motorized attenuator - PowerXP is a computer-controlled laser beam attenuation

device. It attenuates a free space laser beam/pulse continuously without introducing additional

energy fluctuations. PowerXP is controlled by a computer via via USB or RS232 connection.

1.2. General safety requirements

Compact motorized attenuator is designed to operate in conjunction with laser systems.

All applicable rules and regulations for safe operation of lasers must be known and applied

while installing and operating PowerXP. The customer is solely responsible for laser safety

while using PowerXP as a standalone device or integrated into system. The customer must

consider protective measures.

While assembling or operating PowerXP, do not stare at the direct or scattered laser

light even with safety goggles. All parts of the body must be kept away from the laser

radiation. While adjusting laser beam through PowerXP, laser power must be kept as

low as possible. Hazardous laser radiation can increase while optical components or

instruments are used in combination with PowerXP. Appropriate eye protection must

always be worn at all times. Electrical safety requirements must be complied while

assembling and operating PowerXP.

1.3. Regulation

Attention!

The following statement applies to the products covered in this manual, unless otherwise

specified herein. The statement for other products will appear in the accompanying

documentation.

These limits are designed to provide reasonable protection against harmful interference in

a residential installation. This equipment generates, uses, and can create radio frequency

energy and, if not installed and used in accordance with the instructions, may cause

harmful interference with radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment causes harmful

interference to radio or television reception, which can be determined by turning the

equipment o and on, the user is encouraged to try to correct the interference by one or

more of the following measures:

•Reorient or relocate the receiving antenna

•Increase the separation between the equipment and receiver

•Connect the equipment into an outlet on a circuit dierent from that to which the

receiver is connected

•Consult the dealer or an experienced radio/TV technician for help

Altechna is not responsible for any radio or television interference caused by modifications of

this equipment or the substitution or attachment of connecting cables and equipment other

than those specified by Altechna. The correction of interference caused by unauthorized

modification, substitution or attachment will be treated as responsibility of the user.

Attention!

Cellular phones or other radio transmitters are not recommended to be used within the range

of three meters of this unit since the electromagnetic field intensity may then exceed the

maximum allowed disturbance values according to IEC 61326-1.

1.4. Operating and storage conditions

For proper PowerXP functioning please use the assigned controller (found in the same

package). Using unassigned controllers might be harmful to the device.

Environmental conditions that must be hold while storing, servicing and operating are:

•Storage temperature should be between -25 °C and +60 °C

•Operating temperature is 25 °C ± 10 °C

•PowerXP must be protected from humidity, dust and corrosive vapors to avoid damaging

optical components and electronics

•Avoid strong static electricity and electromagnetic fields

2. Operation Principle

PowerXP incorporates a rotating quartz λ/2 phase waveplate and one polarizer which separate

s-polarized and p-polarized beams (fig. 1). The intensity ratio of the two beams may be

continuously varied without alteration of other beam parameters by rotating the waveplate.

Proper functioning of PowerXP requires optimal configuration of optical elements regarding

to incident laser beam polarization contrast. Higher incident laser beam polarization contrast

leads to higher PowerXP output polarization contrast.

2. Operation Principle

p-pol

Brewster type

thin ﬁlm polarizer

Incident linearly

polarized laser beam

Rotating λ/2

waveplate

Beam dump

s-pol

Figure 1. PowerXP operation principle. The intensity of the incident beam is varied by means of

a λ/2 phase waveplate and a polarizer.

PowerXP incorporates a rotating quartz λ/2 phase waveplate and one

polarizer which separates s-polarized and p-polarized beams (g. 1).

The intensity ratio of the two beams may be continuously varied without

alteration of other beam parameters by rotating the waveplate. Proper

functioning of PowerXP requires optimal conguration of optical elements

considering the polarization contrast of the incident laser beam. Higher

incident laser beam polarization contrast leads to higher PowerXP output

polarization contrast.

PowerXP_User_manual_A5_06_20161107.indd 10 07/11/2017 18:08

Figure 1. PowerXP operation principle. The intensity of the incident beam is varied by means of

a λ/2 phase waveplate and a polarizer.

3. Package contents

•Compact motorized attenuator - PowerXP

•Controller

•USB cable (2 m length recomended but no longer than 3 m)

•12 V power supply

•Soware, installation instructions in USB flash

•Polarizer – (already in the attenuator)

•Waveplate – (already in the attenuator)

3.1. Optics (dis)assembling

In order to get maximum possible attenuation polarizer adjustment is necessary. The back

cover with beam dump can be removed by untightening two screws showed in fig. 2. Aer

removing the closure, 3 microscrews will be uncovered (circled in red). Adjusting them while

measuring laser power output, will allow to reach maximum attenuation.

If necessary, the waveplate and polarizer holder can be removed for cleaning purposes.

To remove the waveplate just untighten the retaining ring and take out the waveplate. For

removing the polarizer holder please remove 3 steel screws and carefully pull it from the main

PowerXP body.

Figure 2. Disassembly of PowerXP. Adjustment microscrews circled in red. To remove the cover

loosen two screws on each side of PowerXP (marked with yellow circle)

λ/2 waveplate

PowerXP_User_manual_A5_06_20161107.indd 12 07/11/2017 18:08

Figure 2. Disassembly of PowerXP. Adjustment microscrews circled in red. To remove the cover

loosen two screws on each side of PowerXP (marked with yellow circle).

4. PowerXP Soware Description

4.1 “AltOne” soware

“AltOne” soware is dedicated soware for all Altechna products. It is designed to

automatically detect dierent Altechna products by the product serial number.

Soware can operate only when connected to “USB” or “RS232” ports. When communicating

through “Ethernet” port you should established connection by oneself considering your

system’s configuration.

4.2. Computer requirements

•Free USB port or RS232 port. PowerXP is compatible with USB 1.1, USB 2.0 and USB 3.0

Computer administrator rights (only for installation)

•Windows XP sp3 (32-bit)

•Windows Server 2003 sp2 (32-bit)

•Windows Vista sp1 (32/64-bit)

•Windows Server 2008 (32/64-bit)

•Windows 7 (32/64-bit)

•Windows 8 (32/64-bit)

•Windows 10 (32/64-bit)

•Microso.Net framework 4.0 redistributable (installs automatically)

•Adobe Acrobat Reader 7.0 or above

4.2. Soware installation

“AltOne” is dedicated soware for all Altechna products. All products from Altechna should

work with this soware and it is not required for multiple installations.

1. Run the “AltOne-Setup.exe” installation file. In case the soware is installed on an

operating system that does not meet requirements, only USB drivers will be installed. Click

“Yes” to continue.

2. Installation window will appear, click “Next” to continue:

3. Click “Next”:

4. Select installation directory and click “Next” to begin installation:

5. “AltOne” soware requires “Microso.NET Framework 4 Client Profile” or higher version

to be installed. Setup will oer to download it, choose “Yes” if active internet connection

is available. Choose “No” to download it from www.microso.com/en-us/download/

details.aspx?id=17113 and install it manually. One should choose “No” if newer version

of Microso.NET framework is unwanted, or working internet connection is not available.

This dialog will not appear if framework is already installed. Download size is 42 Mbytes.

6. Setup will download “Microso .NET Framework 4 Client Profile”.

7. Aer download is finished, “Microso .NET Framework 4 Client Profile” will be installed,

wait for it to complete. This can take more than 10 minutes on slower machine.

8. Setup will finish by installing drivers. Click “Next” to continue:

9. Click “Finish” to end installation. The program cannot be opened if only drivers were

installed (see step 2 for details).

10. “AltOne” soware icon will appear on “All Users” desktop and “All Users” start menu.

When using PowerXP with USB:

1. Connect PowerXP to its controller.

2. Connect PowerXP controller and PC via USB cable.

3. Plug in PowerXP power supply jack.

4. Windows will detect new hardware. Wait until windows configures new device.

4.3 Program first run

Launch “AltOne” program using “AltOne” icon on desktop or from “Start Menu → All Programs

→ Altechna → AltOne → AltOne”. AltOne “Select Device” window will appear. At least one device

must be displayed on the list. If the list is empty, please check USB/RS232 cable, power

connection. Red LED must be active if power is OK. Click refresh button to rescan all ports.

4.4. “Select Device” tab page

“Select Device” tab contains a list of currently connected and powered attenuators. This

window is used to choose device to work with if there are several controllers connected to a

single computer. Functions of this window are described in the picture below.

Figure 4. AltOne “Select Device” tab. It is displayed every time program is started. There is one

device (PowerXP) attached to PC in shown screenshot. Click “Connect” to load control tabs for it.

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