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Combined Laser Diode and TEC Benchtop Controllers

DK Photonics’ Combined Laser Diode and TEC Benchtop Controllers is specially designed for butterfly semiconductor devices. It integrates laser diode drive and TEC control and realizes constant current drive and temperature control at the same time. It has the advantages of high current accuracy, good constant current characteristics, stable temperature, and strong anti-interference ability.

Features

  • Compact all-in-one current source
  • temperature controller
  • Stand Compatible with most of Butterfly Lasers
  • Touch screen control， Provides Laser Currents up to 3 A
  • Excellent 24 Hour Temperature Stability (0.002 °C)

Applications

  • Fiber Laser
DK Photonics’ Combined Laser Diode and TEC Benchtop Controllers is specially designed for butterfly semiconductor devices. It integrates laser diode drive and TEC control and realizes constant current drive and temperature control at the same time. It has the advantages of high current accuracy, good constant current characteristics, stable temperature, and strong anti-interference ability. It has protection measures such as overcurrent, overvoltage, and overheating, which is very suitable for laboratories and research institutions.
Screen display:

Features:

  1. Provide a standard output interface, which can be used to drive lasers of different packages with fixtures of different packages.
  2. High precision, low noise/ripple circuit output, the maximum output current can reach 2A.
  3. Real-time drive current and voltage monitoring with photodiode detection.
  4. With powerful protection functions, it can realize overcurrent, overvoltage, overheating, current ramp-up, current ramp-down and other protections to ensure that laser diodes and TEC devices are not damaged.
  5. Supports two working modes of constant current and constant power.
  6. External modulation input, support sine, square and triangle wave input, modulation frequency up to 100kHz.
  7. High-performance TEC control, with good temperature accuracy and stability, with both hardware and software PID automatic adjustment functions, support software PID parameter setting.
  8. Excellent laser protection mechanisms and fault diagnostics.
  9. High current stability, real-time monitoring of various parameters of the laser.

OFLD series laser controller Specifications

ITEM #
UNIT
OFLD-2000B
OFLD-2500B
OFLD-3000B
Current Control (Constant Current Mode)
Laser Diode Current Range
mA
0 ~ 2000
0 ~2500
0 ~ 3000
Compliance Voltage
V
8
8
8
Setting / Measurement Resolution
mA
0.1
0.1
0.1
Accuracy
–
±（0.1%+2mA）
±（0.1%+2.5mA）
±（0.1%+3mA）
Noise and Ripple
μA
＜15
Drift, 1 hours
μA
＜50
Drift, 24 hours
μA
＜100
Current Limit
Setting Range
mA
2 ~ 2020
2 ~ 2520
2 ~ 3020
Setting Resolution
mA
0.1
Accuracy
mA
±10
Voltage Measurement
Voltage Measurement Ranges
V
0 ~ 8
Voltage Measurement Resolution
mV
1
Voltage Accuracy
mV
±50
Power Monitor Input – Photodiode
Photodiode Reverse Bias Voltage Ranges
V
0 ~ 5
Photodiode Reverse Bias Voltage Resolution
V
0.1
Photodiode Reverse Bias Voltage Accuracy
V
±0.1
Photocurrent Measurement Ranges
mA
0 ~ 20
Photocurrent Measurement Resolution
–
0 ~ 2mA：±2μA
2 ~ 20mA：±5μA
External Modulation Input
Input Impedance
–
0 ~ 10 V, 10 kΩ
0 ~ 10 V, 10 kΩ
0 ~ 10 V, 10 kΩ
Modulation Coefficient
mA/V
200
250
300
Small Signal 3dB Bandwidth
–
DC~100KHz

OFLD series temperature controller Specifications

ITEM #
UNIT
OFLD-2000B
OFLD-2500B
OFLD-3000B
TEC Control Output
Temperature Control Range
℃
10 ~ 50
Temperature Resolution
℃
0.01
Temperature Accuracy
℃
0.01
Temperature Stability (24 Hours Typical)
℃
± 0.01
Temperature control output type
–
constant current source
Max. Voltage
V
8
Max. Current Control Range
A
4
Max. Output Power
W
32
Current Setting Range
A
0.05 ~ 4.05
Current Resolution
A
0.001
Control function
–
PID
Temperature Sensor
Sensor type
–
2-Wire Negative Temperature Coefficient Thermistor
Sensor detects current
µA
100
Sensor detection range
kΩ
0.1 ~ 50
TEC measurement (display)
Temperature measurement range
℃
5 ~ 70
Temperature measurement resolution
℃
0.01
Temperature measurement accuracy
℃
± 0.01

OFLD series General Specifications

ITEM #
UNIT
OFLD-2000B
OFLD-2500B
OFLD-3000B
LD current output connector
–
DB9 female connector
LD external modulation connector
–
SMA
Temperature control output connector
–
DB15 female connector
Chassis Ground Connector
–
Banana Jack
Connector for USB-Interface
–
USB Type B
Dimensions (H x W x D)
mm
130 x 280 x 317
Weight
kg
7
Line Voltage / Frequency
–
220 VAC, 50/60 Hz
Operating Temperature
℃
10 ~ 40
Storage Temperature
℃
-40 ~ +70
Relative Humidity
–
Max. 80% Up to 31 °C, Decreasing to 50% at 40 °C, non-condensing
Safety Features
–
Keylock Switch, Laser Current Limit, Soft Start, Adjustable Laser Overvoltage Protection, Over Temperature Protection
Display
–
4.3-inch touch LCD screen

Coming soon

Coming soon

Ordering Information for Custom Parts:

If you need to customize other specifications, please provide detailed description for your requirement.