VCS Laser Current Driver
PRODUCT INTRODUCTION MANUAL
Striving for the Bright Future of Precision Optical Measurement.
SenseFuture Technologies Co., Ltd.
Laser Current Driver (VCS Series)
Product Functions
VCS is primarily used for low-noise current driving of lasers, allowing adjustment of laser driving current by varying the input voltage.
Product Features
- Capable of outputting up to 23V, suitable for driving virtually all low-power lasers, including DFB, VCSEL, ICL, QCL, etc.
- Capable of outputting up to 1A current, suitable for driving virtually all low-power lasers, including DFB, VCSEL, ICL, QCL, etc.
- Maximum output current can be limited via a potentiometer, ensuring laser safety.
- Supports remote control of output enablement and monitoring of output current.
- Offers super-stable output current bias and permits current modulation.
Product Parameters
Table1 Basic Parameters of VCS
| PARAMETERS | MODEL | UNIT | |||
| VCS100 | VCS250 | VCS500 | VCS1000 | ||
| Current-to-Voltage Ratio | 20 | 50 | 100 | 200 | mA/V |
| Maximum Output Current | 100 | 250 | 500 | 1000 | mA |
| Supply Voltage | 12~24 | V | |||
| Output Voltage / Compliance Voltage | Supply Voltage-1 | V | |||
| Current Noise | <0.9 | μA | |||
| Temperature Coefficient Impact | <50 | ppm/℃ | |||
| Temperature Coefficient Impact | 2 | mA | |||
| Regulation Rise/Fall Time | 800/600 | ns | |||
| Modulation Depth | 90% | @1MHz | |||
| Bandwidth (3dB Point) | 2 | MHz | |||
| Modulation Input Voltage Range | 0~5 | V | |||
| Input Pin Impedance | 10 | MΩ | |||
| Remote Enable Voltage Input | Output Enable: High Level (>2V, I>5mA) Output Disable: Low Level (<2V) | ||||
| Current Monitoring Factor | 50 | 20 | 10 | 2 | V/A |
| Operating Ambient Temperature Range | -20~60 | -20~35 | °C | ||
| Operating Ambient Humidity Range | 0~98 | %RH | |||
| Heat Dissipation Requirements | No additional cooling required within the rated operating range | ||||
| Dimensions | 47.5*42.8*19.5 | 47.5*42.8*32.2 | mm | ||
| Weight | ≈50 | ≈100 | g | ||
Interface Introduction
| Number | Pin Name | Pin Type | Pin Definition |
| 1 | Enable | Input | The enable port: when at a low level, the laser current driver does not operate; when at a high level or floating, the laser current driver operates. |
| 2 | Monitor | Output | Actual current monitoring pin (0~5V) |
| 3 | Input | Input | Modulation Voltage Input Pin (0~5V) |
| 4 | GND | Input | Signal Ground Pin |
| 5 | Vref | Output | Reference Voltage Output Interface (0~5V) |
| 6 | Offset | Input | Current Bias Interface (0~5V) |
| 7 | Limit | Input | Current Limiting Interface (0~5V) |
| 8 | GND | Input | Signal Ground Pin |
| 9 | Vin | Input | Power Supply Positive Input Pin (12~24V) |
| 10 | GND | Output | Power Supply Negative Input Pin |
| 11 | Output+ | Output | Positive Current Output |
| 12 | Output- | Output | Negative Current Output |
| Knob Name | Function | |
| ① | Limit | Maximum Output Current Limit Adjustment Knob, turns clockwise to decrease, counter-clockwise to increase. |
| ② | Offset | Output Bias Current Adjustment Knob, turns clockwise to decrease, counter-clockwise to increase. |
Dimensional Drawing
Test Data (Partial)
6.1 Current Noise Spectral Density
6.2 Rise/Fall Time
6.3 Modulation Depth
6.4 Modulation Bandwidth（3dB）
6.5 Temperature Drift Test（VCS100）
| Load Resistance（Ω） | Temperature（℃） | Current(A) |
| 10 | -20 | 0.0415605 |
| 10 | -10 | 0.0415805 |
| 10 | 10 | 0.0416017 |
| 10 | 20 | 0.0416302 |
| 10 | 30 | 0.0416501 |
| 10 | 40 | 0.0416751 |
| 10 | 50 | 0.0417005 |
| Temperature Coefficient (ppm/℃) | 47.08 | |
Instructional Video
【SenseFuture】Laser Current Driver (VCS Series) Instructions for Use https://www.youtube.com/watch?v=oxOiF9q8RxI&t=34s
Partners
01 Universities and Research Institutes
02 Optical Instrument Technology Company
Add：4F, Building B, Gaoke Innovation Center, Guangming District, Shenzhen, Guangdong, China
Tel：+86 191 2054 5883
Mail：sales@sensefuture.com
Web：www.sensefuture.com / www.sensefuture.com.cn
Original Aspiration Determines the Future, Innovation Creates Value, Sharing Unites Hearts.
Looking forward to achieving win-win cooperation with you!
Download
https://drive.weixin.qq.com/s?k=AOUACgeIACgQ71UAUE
SenseFuture Technologies Co., Ltd.
Documents / Resources
 |
SenseFuture VCS100 VCS Laser Current Driver [pdf] Instruction Manual VCS100, VCS250, VCS500, VCS1000, VCS100 VCS Laser Current Driver, VCS100, VCS Laser Current Driver, Laser Current Driver, Current Driver |