Bias current driving module

Max driving voltage

15 V

Driving voltage range

standard: 0 ~ 750 mA; optional: 0 ~ 1500 mA

24hr current stability (@25°C) 

15 ppmv

Min current noise density  (1kHz~200kHz@500mA)

< 1.0 nA/(Hz)1/2

Driving current tuning

DC bias: on-board potentiometer;

AC signal: analog voltage (SMA female)

Analog modulation bandwidth

DC ~ 1 MHz (bandwidth depends on the QCL impedance and the   connection length)

Output enable

Local: dial switch;

Remote: optocoupler isolated input (TTL high->current output enable;   TTL grounded or high impedance->output turns off)

Power supply

+15 VDC

QCL safety protection

(potentiometer) adjustable current clamp, output ramp start,  overvoltage and undervoltage protection, overtemperature protection,   short circuit output protection

TEC temperature-controlling module

Max TEC driving current

+-4 A

Max thermal power dissipation

20 W

Control accuracy (@25℃) 

0.01°C

Output enable

Controlled by the main power switch

Temperature setting

Default: on-board potentiometer;

Remote adjustment: analog voltage (SMA female)

Temperature control method

Linear output that extends Peltier device lifetime

Near-IR 

Laser Currrent Driver

HPTCD-Q

Brief

Universal circuit design, universal components, low reliability

Specially designed for QCLs with  components featuring 

low temperature  drift and high reliability

Max 

driving current

250 mA

750 mA (standard)，1500 mA (opt.)

Max driving volt

5 V (unable to drive most QCLs)

15 V (Suitable for most QCL operating  voltages)

Current noise

NA

<1 nA/(Hz)1/2

suitable for ultra-high precision  spectroscopy measurement

Laser protection

NA

Current clamp, ramp start, overvoltage    and undervolated protection