半导体激光器电流驱动台式设备

半导体激光器电流驱动台式设备
    特性
  • 驱动电流范围覆盖500mA-2A
  • 低噪声(0.4uA rms,QCL驱动),低温漂(10ppm/℃)
  • 输出电压高达20V
  • 调制带宽可高达2-3MHz
  • 概述
  • 规格配置
  • 产品资料

半导体激光管电流驱动器是构成激光器的重要组成部分,为激光管提供稳定低噪声的驱动电流,从而获得稳定的激光输出。谱线科技提供wavelength electronics制造的激光器驱动台式设备,该系列激光器驱动设备具有稳定的输出电流功率,并且低噪声,高稳定度,外触发调制,可电脑端控制等特点,可供实验室、科学研究、工业研发厂商方便使用。

主要指标:

参数

最小值

典型值

最大值

驱动电流

500mA

-

2A

电流噪声

0.4uA rms

1uA rms

1.3uA rms

供电电压范围

10V

-

20V

调制带宽

-

2MHz

3MHz

测试数据:

                       Soft Clamping Current Limit Behavior 


         10 kHz Output Plot,QCL1500 at 1.15 A with 10 Ω Test Load


         600 kHz Output Plot QCL1500 at 1.15 A with 10 Ω Test Load

PARAMETERS

VALUE

NOTES

MIN

TYP

MAX

UNITS

DRIVER  OUTPUT CURRENT

Output Current

0.5, 1.0, 1.5, or 2.0

A

-

RMS Noise Current

0.4

1.0

1.3

μA RMS

QCL1000 at 500 mA output, 100 kHz test bandwidth

Noise Current Density

1

2

4

nA / √Hz

QCL1000 at 500 mA, 10 Ω test load

Stability, short and long term

5

10

15

ppm

25°C ambient

Temperature Coeႈcient

5

10

18

ppm / °C

-

Compliance Voltage Range

10

-

20

V

Internal Supply Voltage can be adjusted from the front panel. NOTE: With this current source, the voltage developed across the load (laser) is not driven by the controller, but by Ohm’s Law and the resistance of the load (laser).

Slow Start Current Ramp (after Enabled)

1.5

msec

To setpoint

Delayed Start

2

sec

User adjustable

EXTERNAL MODULATION

Modulation Bandwidth

-

2

3

MHz

Sinewave

Rise/Fall Time

250 / 200

nsec

To full scale

Slew Rate

-

30

-

V / µsec

-

Depth of Modulation

-

90

-

%

At 500 kHz

External Modulation Input

Range

-5 to +5

V

-

Input Impedance

-

1

-

-

External Modulation Input

Damage Threshold

-10 to +10

V

BNC Connector

MONITORS AND OUTPUTS

Setpoint Resolution

16

bits

5V = fullscale output

Display Accuracy Measurement Resolution

24

Bits

-

Accuracy, Current Output Monitor vs. Actual Current (display or analog output)

0.2

%

> 5% of full scale

0.5

%

< 5% of full scale

Accuracy, Current Setpoint vs. Actual Current

0.2

%

Internal setpoint

0.2

%

External modulation

Accuracy, Analog Setpoint Monitor1

5

%

>10% of full scale

25

%

<10% of full scale

 Current Setpoint Monitor is a reference signal only, and may deviate from the actual setpoint by up to 5% when the setpoint is greater than 10% of full scale.

POWER SUPPLY REQUIREMENTS

AC Power Supply and

Line Frequency

100-120 / 220-240

VAC, 2 A, 50-60 Hz

Switch selectable: 100-120 V and 220-240 V, appropriate power cord supplied

Fuse for 220-240 V

0.63 A, 250 V,

fast blow

5×20 mm, Part #0217.630MXP, Littelfuse

Fuse for 100-120 V

1.25 A, 250 V,

fast blow

5×20 mm, Part #02351.25HXP, Littelfuse

Power Consumption

9.8 Watts

At idle, no output to QCL load

GENERAL SPECIFICATIONS

Warm-up Time

1 Hour

-

Warm-up Time

USB, Ethernet

-

Warranty

One (1) Year

-

Safety Tested To

IEC 61000-3-2

IEC61000-3-3

IEC61000-4-2

IEC61000-4-3

IEC61000-4-4

IEC61000-4-5

IEC61000-4-6

IEC 61000-4-8

IEC 61010-1

European Council Directive

2004/108/EC &European

Council Directive 2006/95/EC

ABSOLUTE MAXIMUM RATINGS

Case Operating Temperature Range

-40 to 50

°C

-

Humidity

80

%

Relative humidity at 30°C (non-condensing)

Weight

12 (~5.4)

lbs (kg)

-

Size

3.47×8.86 × 17.72

(89 × 226 × 450)

inches3  (mm3)

-