LASER DIODE CURRENT OUTPUT
- Current Output Range: 0.00 - 20.00 Amps
- Compliance Voltage Range: 0.00 - 6.00 Volts
- Current Noise and Ripple (rms): < 10 mA
- Current Setpoint Resolution: 5 mA
- Current Stability (4 hours): ≤ 300 ppm
- Current Limit Setpoint Accuracy: ± 2%
INTEGRATED LASER DIODE PROTECTION FEATURES
- Programmable Soft-Start Current Ramp to Set Point (300ms Default)
- Independent Pilot Laser Output (5V, 150mA max)
- User-Programmable Current Limit
- Open Circuit Detection
- ESD and Power Surge Clamp, AC Line Filter
- Reverse Voltage Transient Clamp
- Rear Panel Keylock Switch and Safety Interlock
- Short Circuit when Laser Diode Current Turned OFF
QCW AND MODULATION
- Minimum QCW Rise and Fall Time: 2μs (< 1μs on request)
- QCW Pulse Width: User Adjustable 2μs to CW, 10%-90% (< 1μs on request)
- External Modulation Input Voltage Range: 0 ~ 4 Volts
- Modulation Bandwidth: 25 kHz
- Modulation Input: BNC, Digital (TTL) or Analog, 10kΩ Impedance
- QCW Trigger: Internal Pulse Generator or External
- ---------------------------------------------------------------------------------------------
- Modulation Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
- Analog Modulation Bandwidth: 1 Hz – 20 kHz
AUXILIARY FUNCTIONS
- Laser-On External LED Indicator: 5mA Output
- Pilot Laser Anode, vs. GND
- Temperature Sensor Input: 10kΩ NTC Thermistor
- External Fan Control Circuit, 1 - 24V, 300mA (max)
- Photodiode Input, Measurement Range: 0.00 - 700 μA
- Photodiode Current Measurement Accuracy: ± 0.5%
USER INTERFACE AND CONNECTORS
- Front Panel: Alphanumeric LCD with Key Pad
- RS232 Standard
- USB Option Included
- LabView Drivers Included
- Laser and Peltier Connector: SubD-15, Female
- RS-232 Connector: SubD-9, Female
- Safety Interlock: Jack Connector, Stereo 3.5mm
DIMENSIONS AND POWER INPUT
- Power Input: Universal 100V ~ 240 VAC, 50/60 Hz
- Dimensions: 85mm (H) x 105mm (W) x 200mm (L)
RECOMMENDED ACCESSORIES
- kab-39 Unterminated Connecting Cable -or- kab-231 Terminated Connecting Cable
High Power Laser Diode Driver | Current Range 20 Amps | Multi-Stage Protection for High Power Laser Diodes
Key Features
- Multiple Layers of Laser Diode Protection:
- User Adjustable Current & Voltage Limits
- User Adjustable Soft-Start Current Ramp
- Protection Against Power Black-Out / Brown-Out & AC Surges
- Laser Diode Over-Temperature Shut-Down / External Monitor & Shut-Down - Designed for Electrically Biasing Pump Laser Diodes (808 / 915 / 976 / 980 nm)
- User Interfaces: Front Panel Key Pad / USB / RS-232 Interface, Includes LabVIEW Drivers and GUI
- USB / RS-232 Interface, Includes LabVIEW Drivers
- CW and QCW Modes of Operation
Shipping Information
– Shipping rates in the USA: $75
– Please contact us for International Shipping Rates
Order Placement
Orders for this product in North America and select International Regions are processed and fulfilled by LaserDiodeControl.com, part of the Laser Lab Source Marketplace Group. This product is manufactured by Ostech, GmbH. Mfg Part Number: ls11-la20v06-t8535-v0-187
Warranty Information
This product is sold with a full one year warranty. It is warrantied to be free from defects in material and/or workmanship for a period of one year from the date of shipment. The warranty is transacted and honored by Laser Lab Source for product purchases made through Laser Lab Source.
1 in stock
Weight |
3 lbs |
---|---|
Dimensions |
13 × 9 × 9 in |
Current Range |
5 Amps - 25 Amps |
Voltage Range |
5 Volts - 10 Volts |
Drive Current Mode |
CW + QCW Mode |
Form Factor |
Benchtop (front panel) |
Computer IO and Software |
GUI software included, RS-232 or 485, USB Available |
Driver Current |
20 A |
Driver Voltage |
6 V |
Product Overview
LDI-187 Precision Laser Diode Driver
The LDI-187 has been designed to electrically bias high power laser diodes while protecting them from the common causes of damage which can harm or destroy the laser. Because high power lasers require relatively high levels of DC current and voltage, and generate high levels of waste heat, they have a unique set of electrical and thermal requirements which need to be addressed to protect them from being damaged. Additionally, the driver has been designed with features to assist the user to safely operate the laser diode under test. It offers features such as a front panel e-Stop power kill switch, redundant safety interlocks, and a front panel key-switch master power on/off.
Designed to Protect High Power Laser Diodes from Being Damaged
- User Adjustable Current and Voltage Limits
Setting current and voltage limits are necessary to ensure a long lifetime for the laser diode. Limits can be set using the front panel & key-pad, or through software and/ or Labview GUI. - User Adjustable Soft-Start Current Ramp
There is an internal 300 millisecond soft-start ramp to the current set-point. This reduces the potential for thermal shock to the laser at power ON and is used to ensure good electrical contact prior to fully applying the current bias the laser diode. The user has the ability to adjust the ramp time in order to optimize performance. These laser diode drivers offer the industries’ only user-set slow start current ramp to the bias set point. This allows the user to extend the ramp time out to 10’s of seconds to prevent the possibility of thermal shock and prevent over driving the module during the start up sequence. - Protection Against Power Black-Out / Brown-Out and AC Power Surges
AC line filters and power clamp circuitry protects the laser diode from AC input power
transients and surges. These transients can occur when the bench / wall power source is
momentarily interrupted due to a black or brown-out power outage. - Laser Diode Over-Temperature Shut-Down / External Monitor & Shut-Down
A thermistor input is provided to allow the user to monitor the temperature of the laser diode. This can then be used to shut the laser diode off if a temperature maximum for the laser diode is exceeded. Also included is the ability to control an external cooling fan. A temperature sensor input is available on the back panel, and the external fan control supply is capable of driving up to 500 mA at 24 V.
User Safety Features
The driver has been designed with features to assist the user to safely operate the laser diode under test. These features include a front panel e-Stop power kill switch, redundant safety interlocks, a front panel key-switch master power on/off, and an over-temperature thermistor sensor input.
CW and Quasi-CW Modes of Operation
In addition to CW (continuous wave) mode of operation, these laser diode drivers offer flexible modulation capabilities and an integrated QCW mode (integrated pulse generator). The user can apply a TTL digital or analog modulation input through the rear panel BNC. The controller has an internal function generator which can be used to set the modulation signal or the quasi-CW pulses with a time base accuracy of 1.0%. In QCW mode, the user can set pulse parameters from a remote TTL signal source or use the internal function generator.
User Interface / Front Panel + Keypad / RS232 / USB / LabVIEW Drivers
Controller setup is fast and intuitive via the front panel LCD display and keypad with a simple to use menu structure. These drivers come with standard an RS-232 interface and a USB interface adapter. The included LabView driver GUI makes set-up and control of the system fast and simple.