Laboratory equipment set SVETINFO
Application
SVETINFO equipment set designed for automated laser diode bars (LDB) and laser diode arrays (LDA) light emission parameters measurments and durability trials.
It is possible to synchronize SVETINFO components by CAN network to construct high power solid-state laser pumping system.
Configuration
Equipment set includes:
- up to 8 LDB/LDA pumping current pulses generators SVETINFO-I 808/940 each combined with thermostabilizing cooler SVETINFO-R or SVETINFO-R-plus
- control and synchronization unit SVETINFO-S
- LDB/LDA light field intensity distribution registration unit SVETINFO-V
Optional:
- dedicated PC with Ethernet 100 interface (8P8C RJ-45)
- laser power meter with RS-232 interface
Characteristics
Continuous operation time | no limits |
LDB/LDA operating parameters transmission speed in Ethernet network |
up to 100 Mbps |
Current and voltage pulses waveform sampling period | 1 µs |
Maximum of LDB/LDA single current pulse registered samples |
programmable, up to 4096 for every channel |
LDB/LDA base temperature sampling time | programmable, from 10 ms to 2 s for any channel |
Pumping current pulses specified parameters logging | on activation of any channel |
Generated pumping current pulses count logging | after any channel stopping work |
Power source - power consumption, kV·A - cos φ, no less than |
~220 V, 50 Hz 8 0,95 |
Thermal dissipation, less than, kW | 3,5 |
Equipment set composition | unrestricted |
Mass in maximal configuration, less than, kg | 70 |
Operating temperature range, °С | +15 to +30 |
Components of equipment set SVETINFO
808 & 940 nm laser diode bars and arrays
pumping current pulses generator
SVETINFO-I 808/940
Application
The SVETINFO-I 808/940 generator provides pumping current pulses for laser diode bars (LDB) and laser diode arrays (LDA) (wavelength 808 or 940 nm) with the pulse amplitude up to 220 A forming.
Functions
The generator operates as a standalone unit or as remotely controlled by PC with at least 1 USB 2.0 free port unit.
Unified control command system allows to integrate SVETINFO-I 808/940 generator into automated LDB/LDA characteristics measurement and climatic and durability trials equipment sets.
The LDB/LDA heating by forming constant current on load is available. This mode activation and constant current magnitude settings are controllable by dedicated PC software operating in OS Windows XP, Windows Vista, Windows 7/8.x/10
Special functions
In generator SVETINFO-I 808/940 the output current magnitude hardware control is implemented. If output current magnitude exceeds critical level an output generator's cascade is disconnected and current pulses forming process is stopped. If generator connected to control PC with dedicated software an overload notification is shown to operator.
For noise lowering internal cooling fan speed is depends of output cascade's heatsink temperature. The fan operating at low speed if heatsink's temperature less than 40°C and switched to high speed if exceeds. The fan switches to low speed after heatsink's temperature is lower than 35°C
To prevent SVETINFO-I 808/940 generator and tested LDB/LDAs damages from power line disturbances an active power factor corrector is implemented in internal power supply.
Characteristics
Characteristic | Operating mode | |
«808 nm» | «940 nm» | |
Type and parameters of output signal: – single current pulse – periodic current pulses sequence; – duration of a pulse's leading edge, less than, µs – duration of a pulse's trailing edge, less than, µs |
+ + 30 30 |
+ + 30 30 |
Current pulses amplitude: – variation range, A – increment, A – deviation on a constant load, less than1), % |
5 to 220 1 2 |
5 to 130 1 2 |
Current pulses duration2): – variation range, µs – increment, µs |
50 to 300 5 |
50 to 2500 50 |
Current pulses repetition period3): – variation range, ms – increment, ms |
40 to 104 1 |
40 to 104 10 |
Current pulses repetition rate4): – variation range, Hz – increment, Hz |
1 to 25 1 |
1 to 5 1 |
Load type | nonlinear, complex | |
Amplitude of voltage on load, less than, V | 80 | |
Power supply - power consumption, less than, kV·A - cos φ, no less than |
~220 V, 50 Hz 1 0,95 |
|
Power dissipation, less than, W | 250 | |
Dimensions (h×w×d), mm3 | 115×255×320 | |
Weight, less than, kg | 5 | |
Operating temperature range, °C | +15 to +30 | |
Notes: |
Thermostabilized cooler for laser dode bars and arrays
SVETINFO-R and SVETINFO-R-plus
Application
Thermostabilized cooler SVETINFO-R/R-plus provides mounting of laser diode bar (LDB) or array (LDA) package with 2 or 4 mounting holes and stabilizing it's temperature to pre-set T0 within temperature range -55 to 50°C (liquid cooling SVETINFO-R) or 0 to +50°C (air cooling SVETINFO-R-plus).
To preserve condensate formation on LDB or LDA package it is possible to inflow dried air or nitrogen into cooler's work volume. Temperature of dew point control based on work volume air humidity measurements
Cooler operates as standalone unit or with external control through CAN network. Unified command system allows to integrate cooler into automated sets for LDB/LDA characteristics measurements and climatic and durability trials.
On front panel display are shown:
- temperature of dew point , °C
- LDB/LDA temperature preset, °C
- thermoelectric cooler (TEC) power consumption, V·A and heat flow direction (heating or
cooling of LDB/LDA plate-base); - dried air or nitrogen flow rate
In case of humidity and flow rate sensors are disconnected «***» symbols in corresponded strings are displayed.
Characteristics
Characteristic | ||
SVETINFO-R | SVETINFO-R-plus | |
LDB/LDA mounting plate dimensions, mm2 | 38x38 | |
LDB/LDA package base-plate temperature, °C | -55 to +50 | 0 to +50 |
LDB/LDA power dissipation, W | 25 to 60* | |
Power supply - power consumption, less than, kV·A - cos φ, no less than |
~220 V, 50 Hz 500 0,95 |
|
Dimensions (h×w×d), mm3 | 205×140×240** | |
Weight, less than, kg | 3 | |
Operating temperature range, °C | +15 to +30 | |
Notes: * Maximal power dissipation is defined by LDB/LDA package type and it's base-plate temperature preset; ** Without air/nitrogen/liquid feeding flexible pipes |
Control and synchronizing unit
SVETINFO-S
Applcation
Control and synchronizing unit SVETINFO-S is a part of SVETINFO equipment set, which which is intended to use for laser diode bars (LDB) and laser diode arrays (LDA) automated characteristics measurements.
SVETINFO-S unit provides remote control of operating modes for up to 8 SVETINFO-I 808/940 generator (connected to USB 2.0 or CAN ports of SVETINFO-S) and up to 8 LDB/LDA thermostabilized coolers SVETINFO-R/R-plus (connected to CAN ports of SVETINFO-I 808/940 generators). The connection to SVETINFO-S of up to 2 RS-232 generic LDB/LDA emission measurement external devices (i.e. produced by OPHIR) also available.
Operation modes control of devices plugged to SVETINFO-S and registered data transmission are provided through Ethernet network connection.
Characteristics
Ports for devices with USB 2.0 interface | 8 | |
Ports for devices with CAN interface | 8 | |
Ports for devices with RS-232 interface | 2 | |
Ethernet speed, Mbit/s | 100 | |
Power supply - power consumption, V·A, less than |
~220 V, 50 HZ 100 |
|
Dimensions (h×w×d), mm3 | 65×255×320 | |
Weight, less than, kg | 2 | |
Operating temperature range, °C | +15 to +30 |
Laser diode bars and arrays
light emission intensity distribution registration unit
SVETINFO-V
Application
Laser diode bars (LDB) and arrays (LDA) light intensity distribution registering unit SVETINFO-V is a part of SVETINFO equipment set, which is intended to use for LDB/LDA automated characteristics measurements.
SVETINFO-V unit provides SVETINFO-I 808/940 generator triggering synchronous with TV-matrix exposition launch and following registration of intensity in TV-frame.
For implementation of precise synchronization mode generator SVETINFO-I 808/940 and SVETINFO-V unit are connected by special cable.
Characteristics
TV signal type | CVBS | |
Frame size, pixels | 720x270 | |
Pumping current pulses triggering inaccuracy in precise time synchronization mode, ns |
± 25 | |
Pumping current pulses triggering inaccuracy in external (CAN) synchronization mode, ns |
± 1000 | |
Maximal current pulses rate which allows to register every single TV-frame, Hz | 25 | |
Power supply - power consumption, V·A, less than |
~220 V, 50 Hz 100 |
|
Dimensions (h×w×d), mm3 | 65×255×320 | |
Weight, less than, kg | 2 | |
Operating temperature range, °С | +15 to +30 |