The 500B Series Laser Diode Drivers offer all the performance of the most advanced drivers for a fraction of the price. All models are quiet and stable enough for use in the most demanding applications such as spectroscopy and fiber optic communications.
Intuitive front panel controls make these instruments extremely simple to use. There are two operating modes: constant current or constant power.
Dual current-level selection lets you optimize current resolution settings by precisely varying the output to the laser diode.
Comprehensive laser diode safety features are built into every 500B Series Laser Diode Driver. Redundant FET and relay shorting circuits protect the laser diode at the beginning of the slow turn-on sequence. After a short delay, the output current slowly ramps to your preset operating level. The current limit setting is fully independent.
External analog modulation allows you to voltage control or modulate the output. In the high bandwidth mode, you can modulate the laser up to 800 kHz. For precision laser output power control, or wavelength tuning with external control circuitry, you can slowly modulate the laser output in the low bandwidth mode and maintain low noise operation.
Our Model 300B Temperature Controllers and our complete line of Temperature Controlled Mounts and Telecom Mounts for laser diodes complement Newport 500B Series Drivers in performance and value.
When it comes to selecting a laser diode mount and temperature controller to go along with your new driver Newport does all the work for you. Our newly introduced laser diode control kit (LDKIT series) bundles the diode driver, temperature controller, mount, cables and thermal paste compound all at a great price.
LDKIT-6A-55W includes the 560B laser diode driver, 350B temperature controller, 764H-061 mount, cables and thermal paste.
Note that Models 501B and 525B are phased out and replaced by 505B and 560B , respectively.
Additional Benefits
- A monitor photodiode can be reverse-biased from 0–5 V with no external power supply
- Preset output current or laser power level
- USB 2.0 interface for remote control
- Fully independent current limit
Specifications
|
|
|
501B
(Obsolete) |
505B
|
525B
(Obsolete) |
560B
|
| Output Current |
| Output Current Range (mA) |
0-50 |
0–100 |
0-200 |
0–500 |
0-1000 |
0–2500 |
0-3000 |
0–6000 |
| Output Current Resolution (mA) |
0.001 |
0.002 |
0.004 |
0.01 |
0.02 |
0.05 |
0.06 |
0.12 |
| Output Current Accuracy (% FS) |
±0.03 |
±0.05% FS |
±0.07 |
±0.09% FS |
| Laser Output Compliance Voltage (V) |
7 |
0-7.0 |
7 |
0-5.0 |
| Temperature Coefficient (ppm FS/°C) |
<50 |
<50 |
<50 |
<50 |
<80 |
| Current Output Short-Term Stability (1 h) (ppm FS) |
<10 |
<10 |
<10 |
<20 |
| Current Output Long-Term Stability (24 h) () |
|
<50 |
<50 |
<50 |
| Noise/Ripple (rms) (µA)(1) |
| |
Laser Output Noise/Ripple (rms) Hi BW |
<0.7 |
<1 |
<1 |
<1.5 |
<6 |
<10 |
<10.9 |
<13.8 |
| |
Laser Output Noise/Ripple (rms) Lo BW |
<0.1 |
<0.3 |
<0.4 |
<1.1 |
<2 |
<4 |
<7.3 |
<12 |
| Current Limit |
| |
Range (mA) |
0–50.50 |
0–101.0 |
0–202.0 |
0–505.0 |
0–1,010 |
0–2,525 |
0–3.030 |
0–6,060 |
| |
Resolution (mA) |
0.001 |
0.002 |
0.004 |
0.01 |
0.02 |
0.05 |
0.06 |
0.12 |
| |
Accuracy (%FS) |
|
|
|
|
| External Analog Modulation |
| Input Range (span of 10V) |
-10 V to +10 V, |
-10 V to +10 V, 10 kΩ |
-10 V to +10 V, 10 kΩ |
-10 V to +10 V, 10 kΩ |
| Transfer Function (mA/V) |
5 |
10 |
20 |
50 |
100 |
250 |
300 |
600 |
| Bandwidth (kHz) |
| |
External Modulation Bandwidth Hi BW |
DC to 1000 |
DC to 600 |
DC to 660 |
DC to 500 |
DC to 400 |
DC to 200 |
DC to 300 |
DC to 100 |
| |
External Modulation Bandwidth Lo BW |
|
DC to 10 |
DC to 12 |
DC to 12 |
DC to 10 |
DC to 10 |
DC to 10 |
DC to 10 |
| Photodiode Input |
| Monitor Current Range (mA) |
0–5 |
0–5 |
0–50 |
0–50 |
| Monitor Current Stability (24 h) () |
|
±0.02 |
±0.02 |
±0.02 |
| Monitor Current Accuracy (% FS) |
±0.05 |
±0.05 |
±0.05 |
±0.05 |
| Photodiode Bias Voltage (V) |
0 to -5 |
0 to -5 |
0 to -5 |
0 to -5 |
| Measurement Display |
MD Output Current Range (mA)
|
0-50.00 |
0–100.0 |
0-200.0 |
0–500.00 |
0-999.9 |
0–2500 |
0-3000 |
0–6000 |
| Output Current Resolution (mA) |
0.01 |
0.01 |
0.1 |
0.1 |
0.1 |
1.0 |
1.0 |
1.0 |
| Output Current Accuracy (% FS) |
±0.03 |
±0.05% FS |
±0.07 |
±0.09% FS |
| Photodiode Current Range |
0–5000 µA |
0–5000 µA |
0–50.00 mA |
0–50.00 mA |
| Photodiode Current Resolution () |
|
1.0 |
10 |
10 |
| Photodiode Current Accuracy (% FS) |
±0.05 |
±0.05 |
±0.05 |
±0.05 |
1) Measured on a resistive load and normalized to 100kHz bandwidth.
Specifications
| Power Requirements |
100/120/220/240 VAC, 50/60 Hz |
| Chassis Ground |
4 mm banana jack |
| Size (H x W x D) [in. (mm)] |
3.5 (88) x 8.5 (215) x 12.6 (320) |
| Weight [lb (kg)] |
8.9 (4.05) |
| Operating Temperature |
0°C to 40°C
(<90% humidity non-condensing) |
| Storage Temperature Range |
-40°C to + 70°C
(<90% humidity non-condensing) |
| Laser Safety Features |
Output On/Off keyswitch, interlock, output delay
(meets CDRH US21 CFR 1040.10) |
| Output Connectors Interlock/Photodiode |
9-pin female D-sub |
| Output Connectors External Photodiode |
BNC |
| Output Connectors Modulation |
BNC |
| USB Interface Connection |
USB 2.0 Connector |
