MOGlabs MFE Manual

Fibre amplifier

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Fibre Ampliﬁer

MFE

Revision 1.02

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Summary of Contents for MOGlabs MFE

Page 1 Fibre Ampliﬁer Revision 1.02...
Page 2 MOGL Contact For further information, please contact: MOG Laboratories P/L MOGLabs USA LLC 49 University St 419 14th St Carlton VIC 3053 Huntingdon PA 16652 AUSTRALIA +61 3 9939 0677 +1 814 251 4363 info@moglabs.com...
Page 3 We hope that the meets and exceeds your expectations. Please let us know if you have any suggestions for improvement in the or in this document, and check our website from time to time for updated information. abs www.moglabs.com MOGL...
Page 5: Safety Precautions
Safety Precautions Safe and eﬀective use of this product is very important. Please read the following safety information before attempting to operate your laser. Also please note several speciﬁc and unusual cautionary notes before using the , in addition to the safety precautions MOGL that are standard for any electronic equipment or for laser-related instrumentation.
Page 6 removed from the controller when it is in the clockwise ( position. • To completely shut oﬀ power to the unit, turn the keyswitch anti-clockwise ( position), switch the mains power STANDBY switch at rear of unit to , and unplug the unit. •...
Page 7 Model number: Serial number: A82108001 Manufactured: AUGUST 2021 US FDA compliance Complies with 21 CFR 1040.10, and 1040.11 except for deviations pursuant to Laser Notice No.50, dated 24 June 2007 MOG Laboratories Pty Ltd, 49 University St Carlton VIC 3053, AUSTRALIA Emission connector symbol LASER RADIATION INVISIBLE LASER RADIATION...
Page 8 INVISIBLE LASER RADIATION AVOID EYE OR SKIN EXPOSURE TO Model number: DIRECT OR SCATTERED RADIATION FDA compliance Serial number: CLASS 4 LASER PRODUCT A82108001 Manufactured: AUGUST 2021 Wavelength Max Power and serial number IEC 60825-1:2007 Complies with 21 CFR 1040.10, and 1040.11 except for 1050nm AS/NZS 2211.5:2006 deviations pursuant to Laser Notice No.50, dated 24 June 2007...
Page 9: Protection Features
Protection Features includes a number of features to protect you and MOGL your laser. Softstart A time delay (3 s) followed by linearly ramping the pump diode current (1 s/A max). Circuit shutdown Many areas of the circuitry are powered down when not in use.
Page 10 viii Emission indicator The abs controller will illuminate the current warning MOGL indicator immediately when the ampliﬁer is switched on. There will then be a delay of at least 3 seconds before actual laser emission. Mains ﬁlter Protection against mains voltage supply transient peaks. Key-operated The ampliﬁer cannot be powered unless the key-operated STANDBY switch is in the...
Page 11: Table Of Contents
Contents Preface Safety Precautions Protection Features 1 Introduction 1.1 Front panel controls ....1.2 Rear panel connections ....2 Menus 2.1 Main menu .
Page 12 Contents B.2 OVEN indicator ..... . B.3 Error states ......B.4 State ﬂags .
Page 13: Introduction
1. Introduction is a modular high-power ﬁbre ampliﬁer system MOGL based on Er and Yb doped active ﬁbres. It uses an internal or external (depending on the model) seed laser and up to three am- pliﬁcation stages providing the output power levels from 500 mW to 20 W.
Page 14: Front Panel Controls
Chapter 1. Introduction 1.1 Front panel controls Fibre Ampli�er OVEN OVEN LASER RADIATION mode, the ampliﬁer is disabled, no current is applied to STANDBY STANDBY the pump diodes. mode, the internal ampliﬁcation stages are placed into standby, ready to be activated. On ﬁrst power-up and during the boot pro- cedure the will halt if the key is already in the position,...
Page 15: Rear Panel Connections
1.2 Rear panel connections The two buttons below the adjust knob allow selection of the digit ←, → of a value being edited. Menu control buttons to navigate the menu system. ← steps back- ←, ↑ , ↓, OK wards one me u level; ↑ or ↓ step up and down between lines on any given menu;...
Page 16 Chapter 1. Introduction hi-speed ( ) input to microcontroller. USB-A USB 2.0 twisted pair ethernet to microcontroller. RJ45 10/100 Ethernet External modulation of the output power. 0 1 2 V input max, in- MOD IN verted. The input is -coupled. Aﬀects the ﬁnal ampliﬁcation stage only.
Page 17: Menus
2. Menus can be controlled via a detailed on-screen menu MOGL system. There are four push buttons to the right of the display, to step through the menus. The large encoder knob can be rotated to change a value, and also acts as a push-button to select the character or digit to be adjusted.
Page 18: Report Menu
Chapter 2. Menus to the Report→ or Options→ line and press OK to enter into other menus. 2.2 Report menu menu provides access to crucial information of each am- Report pliﬁcation stage inside the ﬁbre ampliﬁer. The number of stages may vary depending on the model.
Page 19: Ethernet Settings
2.5 Ethernet settings sions. There are also options to restore default settings, reset the settings and ﬁrmware to factory values, and to restart the device. 2.5 Ethernet settings network parameters. To eﬀect new settings, select the Restart TCP/IP ethernet menu option which is initially oﬀ-screen at the bottom.
Page 20 Chapter 2. Menus...
Page 21: Operation
3. Operation 3.1 Getting started armoured ﬁbre connector cap should be removed MOGL before turning the ampliﬁer on to prevent permanent damage. If the ampliﬁer is intended to be used in conjunction with the cavity then it should be connected via a hi-speed USB-C (USB 3.0-3.2) cable supporting power delivery of at least 60W.
Page 22: Interlocks
Chapter 3. Operation 7. If the key is switched back to , the ampliﬁer will be STANDBY disabled. 8. Navigate to Setpoint Current or Output Power depending on the operation mode:constant current (CC) or constant power (CP). The mode can be changed in the Options menu. 9.
Page 23 3.2 Interlocks gration with controlled-entry systems such as door interlocks. 3.2.2 Key switch The key switch on the front-panel must be set to Run to enable the outpu. As a safety procedure, it is necessary to manually toggle the key switch after power-cycling the unit; it cannot simply be left in the position.
Page 24 Chapter 3. Operation In the case of a device malfunction, a menu on the main screen Report will provide information on the cause of the system shutdown.
Page 25: Mogmfe Application
4. MOGMFE application The host software program mogmfe provides a graphical user inter- face that allows remote control of the ampliﬁer. It may be necessary to install a ﬁrmware update (section 4.4) be- fore being able to use the mogmfe software. If the software detects an incompatibility it will oﬀer to install the update, which can be obtained from the abs website.
Page 26: Main Display
Chapter 4. MOGMFE application 4.2 Main display TBD. 4.3 Menu options TBD. 4.3.1 Conﬁg TBD. Allows conﬁguration of network connection settings ( address, mask, Network gateway and port). Particularly useful for conﬁguring the network settings over . Changing the Static IP only has an eﬀect if DHCP is disabled, or if name resolution fails.
Page 27: Firmware Update
4.4 Firmware update 4.3.2 Help Displays device information. About Initiates ﬁrmware update (section 4.4). Update Opens web browser pointed at the abs support website to read MOGL Manual the most up-to-date version of the manual. 4.4 Firmware update From time to time, abs will release a ﬁrmware update to im- MOGL prove functionality.
Page 28 Chapter 4. MOGMFE application must not be powered oﬀ or interrupted during the ﬁrmware update or the ﬁrmware could become corrupted. Firmware is distributed as a ﬁle that contains diﬀerent ﬁrmware components. Upon opening the ﬁrmware update tool (Figure 4.3), click the Select button and browse for the ﬁrmware ﬁle.
Page 29: A Specifications
A. Speciﬁcations Parameter Speciﬁcation Power ampliﬁer Output current 0 to 10 A Output power Up to 20 W Display resolution ±10 mA, ±10 mW Noise TBD (10 Hz – 1 MHz, depending on the seed laser) Stability 1% rms Warmup time 30 minutes Analogue 1 2 V max, 10 kHz bandwidth, inverted...
Page 30 Appendix A. Speciﬁcations Parameter Speciﬁcation SHG oven controller Operating Ambient to 150 ◦ temperature Accuracy ±0 02 ◦ Long-term stability ±0 05 ◦ Regulator type PID, hysteresis Warmup time 15 minutes Computer interface Ethernet 10/100 TP, RJ45 USB 2.0, plug type USB-A Display 2.8”...
Page 31 Parameter Speciﬁcation Mechanical & power Dual 24 V ball-bearing IEC input 80 to 264 V 47 – 63 Hz Dimensions WxHxD = 422 × 88 5 × 400 mm Weight 7 kg (excluding cables) Power 15 W (standby) 36 W to 200 W, conﬁguration-dependent...
Page 32 Appendix A. Speciﬁcations...
Page 33: B Troubleshooting
B. Troubleshooting detects a wide range of fault conditions and de- MOGL activates related circuitry accordingly. The front panel provide LEDs indication of the state of these functions. B.1 AMP indicator Colour Status Deactivated; check interlock and key switch DARK Standby mode, ready to be enabled YELLOW Current ramping up to setpoint...
Page 34: Error States
Appendix B. Troubleshooting B.3 Error states If an error is detected, the display will provide an explanatory message from the table below. Error Message Solution Firmware update in Ampliﬁer cannot be enabled during progress the ﬁrmware update. Restart the de- vice after the ﬁrmware update is ﬁn- ished.
Page 35: State Flags
B.4 State ﬂags B.4 State ﬂags State ﬂags are used to monitor the ampliﬁcation stages and can be very helpful in troubleshooting. The ﬂags are constantly updated in the menu. These ﬂags are represented by two numbers Report separated by space. Both numbers are in hexadecimal format. The ﬁrst number is called a global (or board) ﬂag and provides information about global triggers (interlock, power good and signals).
Page 36 Appendix B. Troubleshooting B.4.2 STAGE ﬂag Flag name HEX Description SUDDEN DROP 0x01 Output power has dropped by more then 20% ILIM TRIG 0x02 Overcurrent protection has been triggered ILIM EN 0x04 1:Overcurrent protection enabled INPUT POWER LOW 0x08 Seed input power too low INPUT POWER HIGH 0x10 Seed input power too high SHORT CIRCUIT 0x20 Output is short circuit...
Page 37: C Laser Head Board
C. Laser head board Ampliﬁers with internal seed laser will have a laser head interface board that provides connection breakout to the laser diode, temperature sensor, and laser head interlock. It also includes a protection relay and passive protection ﬁlters and an connection for direct diode current modulation.
Page 38: B5185 Headboard
Appendix C. Laser head board C.1 B5185 headboard Headboard type B5185 provides high-speed active modulation of the diode current. It uses 500 MHz opamps and very low latency circuitry to reduce phase delay to around 12 ns. The B5185 allows for closed-loop bandwidth of about 4 MHz (without phase advance), which is helpful in achieving sub-Hz linewidth reduction by lock- ing to a high-ﬁnesse optical cavity.
Page 39 C.1 B5185 headboard C.1.1 input The B5185 input provides coupling to an active mod- ulation circuit. Note that connection to the input will reduce the diode current by about 2.5 mA, with zero input voltage. B5185 Input range ±2 0 V max Input coupling DC (direct) AC/DC (buﬀered)
Page 40: Headboard Connection To Controller
Appendix C. Laser head board C.2 Headboard connection to controller abs laser cable is a digital (dual link) cable. MOGL DVI-D DL Note There is a bewildering assortment of apparently similar cables avail- able. Most computer display cables will not work because they are missing important pins;...
Page 41: D Connector Pinouts
D. Connector pinouts WARNING: The connector is intended for connection to a OVEN cavity. It can provide high currents that may damage MOGL other devices. Considerable care should be taken if connecting to non- abs equipment. MOGL Only high quality USB-C (USB 3.0-3.2) cables with a power deliv- ery feature of at least 60W should be used.
Page 42: Interlock
Appendix D. Connector pinouts D.1 Interlock +3.3 V via 1 kΩ No contact Interlock input Figure D.1: M12 5-pin connector for Interlock. Pin 1 and Pin 5 should be short-circuited to enable ampliﬁer. Note: Do not apply a voltage across the interlock pins, or the may be irreversibly damaged!
Page 43: E Command Language
ﬁrmware releases to improve functionality and add features. When upgrading ﬁrmware, please refer to the most recent version of the manual available at http://www.moglabs.com. Commands are formed by a comma-separated list of parameters, as listed below. The parameters shown in square brackets are optional, and commands that are called without parameters are treated as queries.
Page 44 Appendix E. Command language STATE STATE Responds with current state of the ampliﬁer. REPORT REPORT[,num] Returns a dictionary (comma-separated list of key-value pairs) of present ampliﬁcation stage settings and measured values. lects the ampliﬁcation stage. The order of entries in the dictionary is subject to change at any time.
Page 45: Ethernet Settings
E.2 Ethernet settings IMON IMON,[num] Reports the actual measured current through the pump diode for ampliﬁcation stage. TMAX TMAX,[num] Reports the maximum measured temperature for ampliﬁcation stage. FAN,[num] Reports the actual measured fan speed in ampliﬁcation stage. Consists of two numbers separated by a space, representing the speed of each fan respectively.
Page 46 Appendix E. Command language ETH,DHCP ETH,DHCP[,onoff] Enable or disable . Set to non-zero to enable ; zero to DHCP DHCP use static address.
Page 47: F Communications
If you are experiencing diﬃculty in connecting to your , please review the detailed in- structions available at www.moglabs.com/support/software/connection F.1 Protocol Communication follows a query/response protocol, where the user sends a text string to the unit, and the unit returns a text response.
Page 48: Tcp/Ip
USB cable (type A-male). The correct device driver is packaged with the mogmfe software package or can be downloaded from www. moglabs.com/support/software/connection. Connecting the will install a new port on the machine.
Page 49 F.3 USB Figure F.1: Screenshot of Device Manager, showing that the be communicated with using COM4. The port number might change when plugging into a diﬀerent port, or after applying a ﬁrmware update. If the port appears in Device Manager with a diﬀerent name, then the driver was not successfully installed.
Page 52 MOG Laboratories Pty Ltd © 2016 – 2022 49 University St, Carlton VIC 3053, Australia Product speciﬁcations and descriptions in this doc- Tel: +61 3 9939 0677 info@moglabs.com ument are subject to change without notice.