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SIDE-BY-SIDE COMPARISON Benchtop Laser Diode Controllers Multi-Channel Laser Diode Controllers Laser Diode Drivers Pulsed Current Sources Laser Diode Temperature Controllers Laser Diode Mounting Fixtures Benchtop Laser Diode Controllers High stability, low noise current source with integrated 32W temperature controller Three models available with up to 4A laser drive current Analog modulation capability to 1MHz Temperature controller compatible with thermistor, IC, and RTD temperature sensors LDC-3700B Laser Diode Controller Model LDC-3714B LDC-3724B LDC-3744B Maximum Current Output 50mA/100mA 200mA/500mA 2A/4A Noise and Ripple <1.5µA/<1.5µA <2µA/<2µA <10µA/<10µA Short Term Stability <20ppm <20ppm <20ppm Compliance Voltage 10V 10V 10V Analog Modulation Input Yes Yes Yes Laser Diode Protection Precision 4-Wire voltage measurement Adjustable compliance voltage Slow start circuit Independent current limit Double shielded transformer Transient protection TEC Output Power 32W 32W 32W TEC Output Current 4A 4A 4A TEC Output Voltage 8V 8V 8V Temperature Stability <±0.01°C <±0.01°C <±0.01°C Temperature Control Range -100.0°C to 99.9°C -100.0°C to 99.9°C -100.0°C to 99.9°C   Thermistor Sensor Yes Yes Yes   IC Sensor Yes Yes Yes   RTD Yes Yes Yes TEC Measurement Display Temperature, current, resistance Temperature, current, resistance Temperature, current, resistance TEC Control Loop Hybrid P-I Hybrid P-I Hybrid P-I TEC Voltage Measurement Yes Yes Yes GPIB Interface Yes Yes Yes                          Back Multi-Channel Laser Diode Controllers 4, 8, or 16 independent, isolated channels for multiple laser and TE control Wide variety of laser and TE controller modules with up to 8A laser drive current, 48W TEC per channel Dual channel laser current or temperature control modules for control of up to 32 laser diodes per mainframe LDC-3916 Sixteen Channel Laser Diode Controller Model LDC-3900 LDC-3908 LDC-3916 LDC-3926 Number of Channels Up to 4 Up to 8 Up to 16 Up to 16 Maximum Current Output Up to 8A Up to 3A Up to 3A Up to 6A Noise and Ripple Depends on Module Short Term Stability Compliance Voltage Analog Modulation Laser Diode Protection TEC Output Power Up to 32W Up to 24W Up to 24W Up to 48W TEC Output Current Up to 4A Up to 3A Up to 3A Up to 6A TEC Output Voltage Up to 8V Up to 8V Up to 8V Up to 8V Temperature Stability Depends on Module Temperature Control Range       Thermistor Sensor       IC Sensor       RTD TEC Measurement Display Control Loop TEC Voltage Measurement Yes Yes Yes Yes GPIB Interface Yes Yes Yes Yes RS-232 Interface No Yes Yes Yes                          Back Laser Diode Drivers High stability, low noise output Dual output ranges on most models Constant current and constant power operating modes Multiple laser protection features Up to 15V compliance available with 4-Wire voltage measurement on select models Pulsed and CW modes LDX-3200 Precision Laser Diode Driver CW LASER DIODE DRIVERS Model LDX-3500 series LDX-3412 LDX-3620 LDX-3100 OEM LDX-3200 series LDX-3232 LDX-36000 series Output Current up to 6A up to 200mA up to 500mA up to 250mA up to 4A up to 4A up to 120A Noise and Ripple 2µA to 30µA <2µA <500nA <2µA <2µA <20µA <0.05% of FS Short Term Stability <20ppm <50ppm <10ppm <50ppm <10ppm <20ppm <100ppm Compliance Voltage 7V 6V 5V 5.5V 15V 15V up to 70V Analog Modulation Input Yes No Yes Yes Yes Yes No Microprocessor Controlled Yes No No No Yes Yes Yes Remote Interface -------- -------- -------- -------- GPIB GPIB GPIB Laser Diode Protection On/off shorting semiconductor switch Slow start circuit Floating output Independent adjustable current limit Power line surge and EFT transient protection Intermittent contact protection Adjustable forward voltage limit On/off shorting semiconductor switch Slow start circuit Floating output Independent adjustable current limit Power line surge and EFT tansient protection PULSED CURRENT SOURCES Model LDP-3840B LDP-3811 LDX-36000 series Output Current 3000mA 200mA/500mA Up to 220A Pulse Width 100ns to 10ms 100ns to 1ms 40µ to 600ms Rise/Fall Time ≤50ns ≤25ns ≤10µ Compliance Voltage ≥10V ≥25V ≤70V Overshoot <5% <5% <5% Pulse Repetition Interval 1µs to 100ms 1µs to 1ms 1ms to 1s Duty Cycle 0 to 10% 0 to 100% 0.1 to 60% GPIB Interface Yes Yes Yes LDP-3840B Precision-Pulsed Current Source                          Back Laser Diode Temperature Controllers Low noise, bipolar output up to 120W Long term temperature stability as low as 0.005°C Adjustable TEC current limits Supports most thermistor, IC, and RTD temperature sensors Configurable sensor current Direct temperature display (°C) on most models LDT-5900 Series Laser Diode Temperature Controller Model LDT-5412 LDT-5525 LDT-5948 LDT-5980 Output Power 4W 24W 60W 120W Output Current 2A 4A 5A 10A Output Voltage 2V 6V 12V 12V Temperature Stability ---------- <±0.01°C <±0.005°C <±0.005°C Temperature Control Range ---------- -99.9°C to 199.99°C -50°C to 250°C -50°C to 250°C      Thermistor Sensor Yes Yes Yes Yes      IC Sensor No Yes Yes Yes      RTD No Yes Yes Yes TEC Measurement Display Current, resistance Temperature, current, resistance Temperature, current, voltage, AC resistance, resistance Temperature, current, voltage, AC resistance, resistance Control Loop Hybrid P-I Hybrid P-I Fully adjustable digital PID Fully adjustable digital PID Auto-Tune PID Optimization No No Yes Yes 4-Wire Voltage Measurement No No Yes Yes GPIB/IEEE-488 and RS-232 Interface No No Yes Yes                          Back Laser Diode Mounting Fixtures Compatible with many industry standard package styles Case temperature control option available for most fixtures User configurable LDM-4442 High Power Laser Diode Mount Model LDM-4982 LDM-4982M LDM-4983 LDM-4984 LDM-4984RF LDM-4986 Package Style DIL Mini-DIL 7- or 13-Pin Butterfly 14-Pin Butterfly 14-Pin Butterfly Bias-T Modulated Fiber-Coupled TO-can, Flanged Case Temperature Control Optional Yes Optional Optional Optional Yes Bias-T Option Yes Yes No Yes No No Water Cooling Option No No No No No No Nitrogen Purge Connection No No No No No No Collimating Lens Option No No No No No No Model LDM-4989 LDM-4990 LDM-4407 LDM-4409 LDM-4412 LDM-4415 LDM-4442 Package Style 20- or 26-Pin Butterfly TO-can To-can C-mount (C-block) To-can Bar CS HHL, TO-3, and other high power packages Case Temperature Control Yes Yes Yes Yes Yes Yes No Bias-T Option No No No No No No No Water Cooling Option No Standard No No Yes Standard Standard Nitrogen Purge Connection No Yes Yes No Yes No No Collimating Lens Option No No No No Yes No No Control up to 16 laser diodes in one rack mountable chassis Convenient cable connections to ILX Lightwave controllers Supports butterfly, DIL, mini-DIL, and fiber-coupled TO-can packages LDM-4616 Sixteen Channel Laser Diode Mount                          Back