Optoelectronics & Engineering Services Fast Pulsed, High Current Laser Diode Driver HIGHLIGHTS • Fast Risetime • High Current • Flexible Control OPERATION PRINCIPLE The LDD100 laser diode driver employs a digitally controlled analogue current source to provide for simple, flexible and accurate laser pulsing. The unit may be USB-controlled for automated measurements. Alternatively, the user may set up all parameters and operate the unit via the front panel keypad and LCD display. FIELDS OF APPLICATION These laser drivers are particularly useful for laser diode testing procedures such as burn-in and LIV measurement. The LDD100 provides up to 200A in pulses ranging from 50ns to 3s duration. The rise time of the pulses is under 25ns with essentially no overshoot. The flexibility in setup and control makes the unit very useful for general laboratory environments, where high power, pulsed diode lasers are used. Artifex Engineering Dortmunder Str. 16-18 26723 Emden, Germany mail: [email protected] http://www.afx-eng.com

ABSOLUTE MAXIMUM RATINGS Average Current Temperature Range ORDERING INFORMATION Full order code: Options For customized or OEM systems, please contact us.

SPECIFICATIONS PARAMETER Control unit to head Head to laser Fall time Resolution of duration Repetition rate Pulse separation LEMO Strip line Rise time Pulse duration 10µs to 100ms Resolution of pulse 100ms to 1s separation 1s to 10s Compliance voltage without active cooling LDD100-40 Duty cycle LDD100-120 LDD100-200 with active cooling Accuracy Data transfer rate Internal External: sequence start External: individual pulse control Type POWER SUPPLY Type DIMENSIONS Control unit Current head 40A and 120A versions also available

OPERATING MODES Local via keypad and LCD display. Remote via graphical user interface: Pulse width- -Pulse repetition — (* Period [-Duty cycle- -Triggering mode — (* External, single pulse C Externa^ sequence start -Current pulse amplitude- Setup profiles — Continuous mode Board current limit: 1 .OA SEQUENCE MODES Parallel staircase: Serial staircase:

MENU STRUCTURE In the following, the columns “Main menu” and the submenus show what appear on the LCD display in each line. The box outline indicates the full display in each case. The user can navigate these lines using the ↑ and ↓ keys. This results in rolling the menu up or down. Alternatively, the user can just press the number corresponding to the line and the menu is entered directly. Main menu 1/Ext TRG: pulse sync 2/Ext. TRG: seq start 3/Int. TRG

For example, on programme start (after the “intro”), the LCD displays: 1/Sequence 2/Trigger 3/Pulse Timing 4/Extras The “Enter” key now enters a main menu and shows the available submenu. Each submenu is designed to have only 4 selections, so that no rolling is necessary or possible. For example, entering the manin menu “Sequence” results in the following display: 1/Parallel 2/Serial 3/Pulse From here, entering “1/Parallel” results in the following display: 1/Current 2/No. of steps 3/No. of cycles From here, entering “1/Current” results in the following display: 1/Max 2/Min 3/Bias From here,...

OUTPUT PULSE SHAPE (40A PULSE) Rise Time Fall Time Rise Time Fall Time SAFE OPERATING AREA Safe Operating Area

NOTICE Artifex Engineering reserves the right to make changes to its products or to discontinue any product or service without notice and advises customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement and limitation of liability. Customers are responsible for their applications using Artifex Engineering components. Artifex Engineering...