Powerful but low cost pulsed / QCW / CW test system for use in the lab as well as for OEM applications.
Ideal for
We offer this instrument with a variety of end stages covering current ranges from 250mA up to 20A in a compact enclosure and up to 1200A in 19” rack enclosures.
The LIV120 uses our extensive range of OPM150 laser power detector heads.
The measurement cycle typically takes less than 1s including the data transfer to the host computer.
The LIV120 is a powerful but low cost pulsed / QCW / CW test system for use in the lab as well as for OEM applications, ideal for
We offer this instrument with a variety of end stages covering current ranges from 250mA up to 20A in a compact enclosure and up to 1200A in 19” rack enclosures. The current ranges 250mA to 2A are forced air cooled. Above 2A in the compact enclosure, the unit is liquid cooled. Please contact us if liquid cooling is required for the low current versions.
The LIV120 uses our extensive range of OPM150 laser power detector heads with all of the comfort of intelligent head technology for cost efficient swapping of detector heads. This feature is very useful when testing a wide range of wavelengths or when testing free beam and fibre coupled lasers.
The measurement cycle typically takes less than 1s including the data transfer to the host computer.
PRINCIPLES OF OPERATION
A complete parameter set for a given measurement protocol may be uploaded to the LIV120. The LIV120 then takes over the measurement procedure. The unit drives the laser with the given prescription and performs the data acquisition and storage. The LIV120 operates both in CW and pulsed modes:
CW-LIV mode
Pulsed LIV mode
Many laser diodes of the same type may now be tested in this manner with very high throughput.
The LIV120 is capable of running in the so-called soft pulse mode. This means that the current between pulses in pulsed mode operation does not drop down to zero, but rather to the value of the minimum current set by the operater. Note the very clean, square shape of the current pulses.
 |  | |
| Current output (min. = 0) | Current output (min. ≠0) |
The burst mode is used to run the driver at constant current with a single pulse (or step) width and pulse separation during the whole burst. All parameters (power, currents and voltage) are measured in this mode. Schematically this appears as follows:
CW-burst mode
Pulsed burst mode
The burst mode is useful for lifetime testing, checking the thermal contact on a device or for generating light for a certain length of time for other measurements such as smile, near field / far field patterns or spectra.
Artifex Engineering supports this product with a custom connection line or contact card configuration service.
FIELDS OF APPLICATION
Applications include laser diode characterization after submounting or packaging, inspection of incoming goods and for OEMs. The software delivered with the unit allows for one-click generation of a full pdf data sheet for the device under test.
| Parameter | Device type | Conditions | Min | Typ | Max | Unit | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Input | ||||||||||||
| Maximum power | Depending on the selected integrating sphere and detector head. See OPM150 series for details! | |||||||||||
| Monitor diode current | LIV120-250 LIV120-500 LIV120-1000 LIV120-2000 | gain 0 gain 1 gain 2 | 0.0025 0.00025 0.025 | 10 1 100 | mA mA µA | |||||||
| Monitor diode current | LIV120-5A or higher | No measurement of monitor diode current | ||||||||||
| Output | ||||||||||||
| Laser diode current | LIV120-250 LIV120-500 LIV120-1000 LIV120-2000 | 0.0625 0.125 0.250 0.500 | 250 500 1000 2000 | mA mA mA mA | ||||||||
| Laser diode current | LIV120-5A LIV120-10A LIV120-20A LIV120-40A | 0.00125 0.0025 0.005 0.01 | 5 10 20 40 | A A A A | ||||||||
| Laser diode current | LIV120-L100A LIV120-L200A LIV120-L400A LIV120-L800A LIV120-L1200A | 0.025 0.05 0.1 0.2 0.3 | 100 200 400 800 1200 | A A A A A | ||||||||
| Compliance voltage | LIV120-250 up to LIV120-2000 | 8 | V | |||||||||
| Compliance voltage | LIV120-5A up to LIV120-40A | 8 | V | |||||||||
| Compliance voltage | LIV120-100A | 10 | V | |||||||||
| Compliance voltage | LIV120-200A | 20 | V | |||||||||
| Compliance voltage | LIV120-400A up to LIV120-1200 | 10 | V | |||||||||
| Accuracy | LIV120-250 up to LIV120-2000 | 0.2 | % | |||||||||
| Accuracy | LIV120-5A up to LIV120-40A | 0.2 | % | |||||||||
| Accuracy | LIV120-100A bis 1200A | 0.5 | % | |||||||||
| Rise time at full rated current | LIV120-250 up to LIV120-2000 | 2 | 5 | µs | ||||||||
| Rise time at full rated current | LIV120-5A up to LIV120-40A | 6 | 10 | µs | ||||||||
| Rise time at full rated current | LIV120-100A | 350 | 400 | µs | ||||||||
| Rise time at full rated current | LIV120-200 up to LIV120-1200A | 400 | 500 | µs | ||||||||
| Pulse duration | LIV120-250 up to LIV120-2000 | pulse modes CW modes | 0.1 0.1 | 60000 120000 | ms | |||||||
| Pulse duration | LIV120-5A up to LIV120-40A | Pulse modes CW modes | 0.22 0.22 | 60000 120000 | ms | |||||||
| Pulse duration | LIV120-100A up to LIV120-1200A | Pulse modes CW modes | 1 1 | 60000 120000 | ms | |||||||
| Duty cycle | Pulse modes CW modes | 0.0002 0.0002 | 99.99 100 | % % | ||||||||
| Measurement time | 200 | µs | ||||||||||
| Measurement time | 11 | Tage | ||||||||||
| Number of measurements per channel | LIV modes Burst modes | 1 1 | 4000 16380 | |||||||||
| Number of channels for measurement | LIV120-250 up to LIV120-2000 | 4
| ||||||||||
| Number of channels for measurement | LIV100-L002 LIV120-5A up to LIV120-1200A | 3
| ||||||||||
| in general | ||||||||||||
| Power supply | LIV120-250 up to LIV120-2000 | Wall plug | ||||||||||
| Power supply | LIV120-5A up to LIV120-40A | table top power supply | ||||||||||
| Power supply | LIV120-100A | 90 | 265 | V (single phase) | ||||||||
| Power supply | LIV120-200A up to LIV120-1200A | 342 | 528 | V (three-phase) | ||||||||
| Communication | USB2.0 | |||||||||||
| Dimensions | LIV120-250 up to LIV120-2000 | 130 x 120 x 106 (w x l x h) | mm | |||||||||
| Dimensions | LIV120-5A up to LIV120-40A | 130 x 120 x 106 (w x l x h) | mm | |||||||||
| Dimensions | LIV120-100A | 19″ Rack 3U | ||||||||||
| Dimensions | LIV120-200A up to LIV120-400A | 19″ Rack 4U | ||||||||||
| Dimensions | LIV120-800A | 19″ Rack 2 x 4U | ||||||||||
| Dimensions | LIV120-1200A | 19″ Rack 3 x U | ||||||||||
We will gladly adapt, for example, the wavelength or the current to suit your application. Let us know your requirements.
Our Software Development Kit
The SDK package is a fixed, free component when purchasing a device.
It comes with the source code of the application program (in VB.net) and a LabView VI with the basic functions of the instrument. A description of the communication with the devices and a list of the commands used is also included.
For some devices (currently LDD100, LIV120 in preparation) there is a dll file (library file) with documentation and exemplary applications in VB.net and LabView.
