Benchtop Laser Controller
The EM595 combines a laser driver and TEC controller into a compact, benchtop device with a straightforward USB or touch-pad user interface.
Full Product Description- Desktop power supply, line voltage, line frequency:
- 100 to 240 V ±10%, 47 to 63 Hz
Product description
The EM595 combines a laser driver and TEC controller into a compact, benchtop device with a straightforward USB or touch-pad user interface. With 1.5A of drive current available, this controller can operate any G&H 14-pin DFB laser or single mode laser and provides 0.01 deg C temperature precision. With 3.0 A available for the thermo-electric cooler, the EM595 establishes an impressive level of low noise and linewidth performance in a benchtop device.
Key features
- Compact size
- Constant current operation
- Constant power operation
Specifications
| Name | Value |
|---|---|
| USB 2.0 interface | Compliant with USBTMC / USBTMC-USB488 Specification Rev. 1.0 |
| Interface protocol | SCPI-compliant command set |
| Supplied drivers | VISA VXI pnp™, MS Visual Studio™, MS Visual Studio.net™, LabVIEW™, LabWindows/CVI™ |
| Display | 4.3" LCD TFT, 480 x 272 pixels |
| Socket for laser, photodiode, NTC, TEC | Compatible with Butterfly Type 1 (pump) and Butterfly Type 2 (telecom) |
| Connector for modulation input | SMA |
| Connector for interlock and laser on signal | 2.5 mm mono phone jack |
| Connector for USB interface | USB type Mini-B |
| Chassis ground connector | 4 mm banana jack |
| Desktop power supply, line voltage, line frequency | 100 to 240 V ±10%, 47 to 63 Hz |
| Power consumption | Max: 40 W |
| Operating temperature | 0 to +40° C |
| Storage temperature | -40° C to +70° C |
| Warm-up time | 30 min for rated accuracy |
| Weight | 1.0 kg |
| Dimensions | Without operating elements (WxHxD): 111 mm x 73.5 mm x 152.6 mm (4.37" x 2.9" x 6.01"), With operating elements (WxHxD): 111 mm x 73.5 mm x 169.2 mm (4.37" x 2.9" x 6.66") |
| Current control (constant current mode) | |
|---|---|
| Control range | 0 to 1.5 A |
| Compliance voltage | > 4 V |
| Resolution | 100 µA (front panel), 50 µm (remote control) |
| Accuracy | ± (0.1% + 500 µA |
| Noise and ripple | Typ: 10 µA without noise reduction filter |
| 5 µA with noise reduction filter | |
| (10 Hz to 10 MHz, RMS) @ 3.3 load, current < 1.2 A | |
| Drift (24 hours) | < 50 µA @ 0-10 Hz in constant ambient temperature |
| Temperature coefficient | < 50 ppm / ° C |
| Current limit | |
| Setting range | 1 mA to 1.5 A |
| Resolution | 100 µA (front panel), 50 µm (remote control) |
| Accuracy | ± (0.12% + 800 µA) |
| Photodiode inpunt | Low setting | High setting |
|---|---|---|
| Photocurrent range | 2 mA | 20 mA |
| Photocurrent resolution (via front panel) | 100 nA | 1 µA |
| Photocurrent resolution (via remote control) | 70 nA | 700 nA |
| Photocurrent accuracy | ±(0.08% +0.5 µA) | ±(0.08% +5 µA) |
| Photodiode reverse bias voltage | 0.1 to 6 V | |
| Photodiode input impedance | ~ 0 Ω (virtual ground) |
| Power contro (constant power mode) | Low setting | High setting |
|---|---|---|
| Photocurrent control ranges | 0 to 2 mA | 0 to 20 mA |
| Laser voltage measurement | |
|---|---|
| Resolution | 1 mV (front panel), 200 µV (via remote control) |
| Accuracy | ± (0.1% + 40 mV) |
| Laser overvoltage protection | |
|---|---|
| Trip voltage (typ) | 4.2 V |
| Modulation input | ||
|---|---|---|
| Input impedance | 10 kΩ | |
| 3 dB bandwidth (constant current mode) | DC to 7.5 kHz (with noise filter) | DC to 250 kHz (without noise filter) |
| Modulation coefficient (constant current mode) | 150 mA/V ± 5% | |
| Modulation coefficient (constant power mode) | 200 µA/V ± 5% (PD low range) | 2 mA/V ± 5% (PD high range) |