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Department DeptID Instrument Description Instrument Tag # Building Room # End User BIOMEDICAL ENG PROGRAM 03170 BIOSAFETY CABINET 148271 5 INNOVATION WAY-DE TECH PARK 0101 E.DAY BIOMEDICAL ENG PROGRAM 03170 BIOSAFETY CABINET 148272 5 INNOVATION WAY-DE TECH PARK 0101 E. DAY BIOMEDICAL ENG PROGRAM 03170 CENRRIFUGE 5804R EPPENDORF 148052 5 INNOVATION WAY-DE TECH PARK 0106 M.
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Thorium
Constant Current and Constant Power Modes The laser diodes can be driven in either constant current (CC) or constant power (CP) mode. In CC mode, the laser current is held precisely at the level set by the user. The CC mode is ideal when the lowest noise and highest response speed is required. In CP mode, the monitoring optical sensor is used to actively stabilize the output power of the laser. A feedback circuit controls the output power of the laser. A power limit can be set to restrict the control loop to a maximum laser output power. To ensure best possible performance, laser diodes are driven with respect to ground, offering significant advantages regarding noise, transient suppression, and stability.
Figure: Oscilloscope screenshot of a typ. Short 100 µs Pulse of 20.0 A generated by the LDC4020 in QCW mode Photodiode and Thermopile Monitor Input The LDC4000 Series allows the user to select photodiodes or thermopiles as the sensor for monitoring the laser diode power output. For each, a monitor input is provided. The photodiode input provides two ranges: 2 mA or 20 mA maximum current. An adjustable-bias voltage can be applied to the photodiode to improve the linearity. The thermopile input provides four ranges: 10 mV, 100 mV, 1 V, or 10 V maximum voltage. Instead of bare thermopile sensors, sensor amplifiers or power meters with analog voltage output can be connected here as well.
Both monitor inputs can be calibrated by a sensor response parameter to directly display the optical power in milliwatts. Continuous Wave (CW) or Quasi-Continuous Wave (QCW) Operation The LDC4000 Series can be operated in continuous wave (CW) or quasi-CW (QCW) mode. The LDC4020 is at ease providing sharp and accurate 100 µs pulses of 20 A peak current without any unwanted overshoots. The integrated pulse generator can be triggered internally with an adjustable repetition rate or externally via a BNC jack at the rear of the unit.
Enhanced Protection Features for the Laser Diode For optimal LD protection, the LDC4000 Series offers a set of enhanced protection features. Independent of operation mode or compliance voltage, a precisely adjustable current limit ensures that the maximum allowed laser current cannot be exceeded. The LDC will return an error signal whenever this pre-set limit is reached by user settings or external modulation. The soft start feature ensures a slow increase of the laser current without voltage peaks after the device is switched on. Voltage peaks on the AC line are effectively suppressed by electrical filters and by careful grounding of the chassis. Even in the case of power line failure, the laser current remains transient-free.
When the output is disabled, the laser is additionally protected by an electronic output short circuit. If the connection between current source and laser diode is interrupted, or the laser voltage exceeds the adjustable voltage protection threshold, the laser current is switched off. Item # LDC4005 LDC4020 Front Panel a Remote Control a Front Panel a Remote Control a Current Control (Constant Current Mode) Laser Diode Current Range 0 to 5 A 0 to 20 A Compliance Voltage 12 V 11 V Setting / Measurement Resolution 1 mA 80 µA 1 mA 320 µA Accuracy ±(0.1% + 2 mA) ±(0.1% + 8 mA) Noise and Ripple (10 Hz to 10 MHz, rms, typ. Callout Connection Callout Connection 1 TTL Input 'Laser Enable In' 5 V Max 8 Cooling Fan 2 TTL Input 'QCW Pulse In' 5 V Max 9 LD Output and Optical Sensor Input 'Laser Output' 3 TTL Output 'Trigger Out' 0 - 5 V 10 Power Connector and Fuse Holder 'Line In' 4 Optical Sensor Input 'Opt Sensor In' 0 - 10 V Max 5 Modulation Input 'Modulation In' -10 to 10 V 11 USB Connector 6 Laser Current Monitor 'Analog CTL Out' 0 - 10 V 12 4 mm Banana Jack for Chassis Ground 7 Serial Number of the Unit 13 MiniDin-6 Jack 'Digital I/O'. 13W3 Mixed D-Sub Jack Pin Configuration Pin Connection Pin Connection 1 (Thermo) Voltage Sensor Input (+) 7 Photo Current Sensor Input (+) 2 (Thermo) Voltage Sensor Ground (-) 8 Photo Current Sensor Ground (-) 3 Not Connected 9 Not Connected 4 Laser Diode Anode (+) 10 Laser Diode Cathode (-) 5 Output for Interlock and Status Indicator “LASER ON/OFF” (+) A1 Laser Diode Ground 6 Ground Pin for Interlock and Status Indicator “LASER ON/OFF” (-) A2 Laser Diode Cathode (with Polarity AG) (-) A3 Laser Diode Anode (with Polarity CG) (+) Digital I/O Ports. Measurement Screen Menu Screen The measurement screen offers an easy readout of measurement values and device status information.
It also allows to adjust the major instrument setpoints. You can freely select two, four, or six values to be displayed with optimized character size.
The menu screen allows selecting various operation modes and options. Laser Diode Setup Screen Photodiode Input Screen The laser diode setup screen allows to enter essential laser control parameters: constant current or constant power mode, limits for laser current and laser power, speed and source of the constant power feedback loop. Via the photodiode input screen, all parameters concerning the photodiode sensor are entered. QCW Settings Screen Preferences Screen This is the input screen for the Quasi-Continous Wave (QCW) pulse mode settings, e.g.
Trigger source and pulse parameters. The preferences screen offers access to the device preferences, e.g. Display and signal settings. Software for Laser Diode Controllers The download button below links to VISA VXI pnp™, MS Visual Studio™, MS Visual Studio.net™, LabVIEW™, and LabWindows/CVI™ drivers, firmware, utilities, and support documentation for Thorlabs' ITC4000 Series laser controllers, LDC4000 Series laser controllers, CLD1000 Series compact laser diode controllers, and TED4000 Series TEC controllers. The software download page also offers programming reference notes for interfacing with compatible controllers using SCPI, LabVIEW, Visual C, Visual C#, and Visual Basic. Please see the tab on the software download page for more information and download links.
LDC4000 Series Shipping List Item # LDC4005 LDC4020 Benchtop Laser Diode Controller, 5 A / 10 V x Benchtop Laser Diode Controller, 20 A / 10 V x Cable LDC4000/ITC4000 to Laser Mount, 5 A, 13W3, D-Sub-9 (CAB4005) x Cable LDC4000/ITC4000 to Laser Mount, 20 A, 13W3, 13W3 (CAB4006) x Mixed D-Sub Connector, 13W3, Male & Female with 3 High-Current Contacts Each, 20 A (CON4005) x x USB Cable A-B, 2 m x x Instrumentation CD Series 4000 x x Printed Operation Manual LDC4000 Series x x Certificate of Calibration x x. Support. A Response from Sean at Thorlabs: Thank you for your feedback! The ITC current / temperature controllers are essentially a combination of an LDC4000 controller and the TED4015 temperature controller. For example, the ITC4005 will have the same controller specifications as the LDC4005.
There is more we can do to simplify the process of selecting the right controller, and we will start by adding a selection guide to our current controller pages, which will list key specifications for our entire current controller line. If you require any further assistance selecting a controller, feel free to email [email protected] and an applications engineer will be happy to help. Easycap capture software windows 10. Response from Javier at Thorlabs to zylv: Thank you for contacting us with your request. The LDC4020 shorts the pin A1 A2 and A3 when the laser diode current is not switched on.
The shorting of those pins is required in order to ensure that the laser diode has a zero potential difference between its pins, when it is not in use. The fact that you cannot source any current with the driver might be related to a connection problem between the laser diode and the LDC or simply that the polarity is not set properly. We would be happy to help you further with the troubleshooting. I will follow up with you directly.
Cma 1390 Laser Power Controller
Dual Temperature and Current Controllers Item # Drive Current Compliance Voltage TEC Power (Max) CC a CP b Modulation Package 25 mA 5 V 2 W - Int/Ext OEM 200 mA 4 V 12 W Ext OEM 1 A 4 V 12 W Ext OEM 1 A 11 V 96 W Int/Ext Benchtop c 1.0 A 8 V 14.1 W Ext Benchtop d 1.0 A 8 V 14.1 W Ext Benchtop e 1.5 A 4 V 14.1 W Ext Benchtop f 2 A 17 V 225 W Int/Ext Benchtop 3 A 4 V 18 W Ext OEM 5 A 12 V 225 W Int/Ext Benchtop f 5 A 20 V 225 W Int/Ext Benchtop 20 A 11 V 225 W Int/Ext Benchtop. Constant current. Constant power. Combined controller and mount for pigtailed laser diodes in TO can packages with A, D, E, or G pin codes only. Combined controller and mount for pigtailed laser diodes in TO can packages with B, C, or H pin codes only.
FAQ
Download mastercraft maximum 4-in-1 laser pro manual. Combined controller and mount for laser diodes in butterfly packages only. Enhanced compliance voltage for operation.
We also offer a variety of OEM and rack-mounted laser diode current & temperature controllers (, and ). Item # CAB4005 CAB4006 CON4005 Click Image to Enlarge Description Standard Laser Diode Cable High Current Laser Diode Cable 13W3 Male and Female Connector Kit (One Each) Max Current 5 A 20 A 20 A Connector Type 13W3 Male to DB-9 Male 13W3 Male to 13W3 Male Loose 13W3 Connectors, Male and Female These cables connect our LDC4000 series current controllers or our ITC4000 series dual current / temperature controllers to laser diodes. We also provide loose 13W3 connectors for customers who wish to make their own cables. For the pinout of the CAB4005 and CAB4006 cables, please see the Pin Diagrams tab. Please note that one CAB4005 cable and one CON4005 connector kit are included with the purchase of an LDC4005 benchtop controller. The LDC4020 is shipped with the CAB4006 cable and CON4005 connector kit.