DC - Devices and Controller

 Download this chapter

DC-0010 Diode laser controller MK1-HPThe diode laser module is connected via the 15 pin HD SubD jacket at the rear of the controller. The controller reads the EEPROM of the laser diode and sets the required parameter accordingly. The MK1 is powered by an external 12V/ 1.5 A wall plug supply. A USB bus allows the connection to a computer for remote control. Furthermore firmware updates can be applied simply by using the same USB bus. The central settings knob rotates a precision optical encoder to set the temperature, injection current and modulation frequency. Pushing the knob down shuts the laser immediately OFF.The MK1 provides an internal modulator which allows the periodic switch on and off of the diode laser. A buffered synchronisation signal is available via the BNC jacket (MOD). The controller is equipped with a touch panel display and industrial highly integrated circuits for the bipolar Peltier cooler as well as for the injection current and modulation control of the attached laser diode. The injection current is stabilized within ± 1 mA and the diode laser temperature within ±0.01 °C.DC-0010 Diode laser controller MK1-HP

DC-0020 LED and Photodiode ControllerThis microprocessor operated device contains an LED current controller and a photodiode amplifier. A touch panel display allows in conjunction with the digital knob the selection and setting of the parameter for the attached LED or photodiode. The controller reads the parameter of the connected LED from the EEPROM located inside the LED connector. The device comes with a 230 VAC / 12 VDC wall plug power supply. Via the USB bus the device can be controlled and data read by an external computer.DC-0020 LED and Photodiode Controller

DC-0030 Dual channel LED transmitter and receiverThis microprocessor operated device contains a dual LED current controller and a dual photodiode amplifier. A touch panel display allows in conjunction with the digital knob the selection and setting of the parameter for the attached LED or photodiode. Two internal modulators are used to modulate the current of each LED. The two channel photodiode amplifiers are converting the photocurrent of the connected photodiode into a voltage. The gain of the amplifier can be selected and the photo voltage is displayed on the touch panel display.DC-0030 Dual channel LED transmitter and receiver

DC-0040 Diode laser controller MK1The diode laser module is connected via the 15 pin HD SubD jacket at the rear of the controller. The controller reads the EEPROM of the laser diode and sets the required parameter accordingly. The MK1 is powered by an external 12V/ 1.5 A wall plug supply. A USB bus allows the connection to a computer for remote control. Furthermore firmware updates can be applied simply by using the same USB bus. The central settings knob rotates a precision optical encoder to set the temperature, injection current and modulation frequency. Pushing the knob down shuts the laser immediately OFF.The MK1 provides an internal modulator which allows the periodic switch on and off of the diode laser. A buffered synchronisation signal is available via the BNC jacket at the rear. The controller is equipped with a touch panel display and industrial highly integrated circuits for the bipolar Peltier cooler as well as for the injection current and modulation control of the attached laser diode. The injection current is stabilized within ± 1 mA and the diode laser temperature within ±0.1 °C.DC-0040 Diode laser controller MK1

DC-0050 Pulsed laser diode controller MK1The pulsed diode laser module is connected via the 15 pin HD SubD jacket at the rear of the controller. The controller reads the EEPROM of the laser diode and sets the required parameter accordingly. The MK1 is powered by an external 12V/ 1.5 A wall plug supply. A USB bus allows the connection to a computer for remote control. Furthermore firmware updates can be applied simply by using the same USB bus. The central settings knob rotates a precision optical encoder to set the temperature, injection current and modulation frequency. Pushing the knob down shuts the laser immediately OFF.The MK1 provides an internal modulator which allows the periodic switch on and off of the diode laser. A buffered synchronisation signal is available via the BNC jacket at the rear. The controller is equipped with a touch panel display and in conjunction with the digital knob the parameter like load voltage, pulse width and repetition rate are selected and set.DC-0050 Pulsed laser diode controller MK1

DC-0060 High voltage supply 4.0 - 7 mA adjustableA novel and safe combination of high voltage and micro processor control form the high voltage controller. The HeNe laser tube is connected via a special high voltage BNC connector to rear of the controller. The precision 5 turn potentiometer sets the discharge current in a range from 4.5 to 7 mA.When the external 12 V is applied the controller starts while displaying the start screen. This will take about 3.5 seconds. After that the user is requested to authorize himself by entering the 4 digit pin code.DC-0060 High voltage supply 4.0 - 7 mA adjustable

DC-0062 High voltage supply 5 mAThis device is used to operate a HeNe laser with a fixed discharge current of 5 mA. The HeNe laser is connected to the high voltage BNC jack. A safety key switch prevents the unauthorised operation. The device comes with a 230 VAC / 12 VDC wall plug power supply.DC-0062 High voltage supply 5 mA

DC-0064 High voltage supply 6.5 mAThis device is used to operate a HeNe laser with a fixed discharge current of 6.5 mA. The HeNe laser is connected to the high voltage BNC jack. A safety key switch prevents the unauthorised operation. The device comes with a 230 VAC / 12 VDC wall plug power supply.DC-0064 High voltage supply 6.5 mA

DC-0070 Piezo controller 0-150VAll voltages necessary for the supply of the Piezo-crystal and all monitor signals are generated by this controller. In addition it contains a photodiode amplifier. The output voltage can be adjusted from 10 to 150 V and the frequency of the integrated modulator for triangular signals up to 100 Hz. A monitor signal which is proportional to the selected Piezo-voltage is provided via a BNC panel jack at the rear. The amplification of the built-in photodiode amplifier can be selected from 1 to 100 in five steps and the amplifier out put is available at the BNC panel jack at the rear. The controller is equipped with a touch panel display and in conjunction with the digital knob the parameter are selected and set.DC-0070 Piezo controller 0-150V

DC-0080 Quad counter & 2 channel photodiode amplifierThis device serves as 4 channel photodiode preamplifier and as quadrature counter.  The gain, offset and coupling as AC or DC can independently be set each channel with the touch panel and digital knob. The output of each preamplifier is available via 4 BNC panel jacks at the rear of the device. From the four analogue signals the TTL quadrature signals are formed and counted by the quadrature counter. The counter signal is available as TTL signal at two BNC panel jacks at the rear of the device. The principle of quadrature counting allows to interpolate one count event into 2, 4, 8 or 16  fractions enhancing the interferometer resolution up to λ/8. The controller is equipped with a touch panel display and in conjunction with the digital knob the parameter like photodetector gain,  pulse width and repetition rate are selected and set.DC-0080 Quad counter & 2 channel photodiode amplifier

DC-0090 Laser controller & exposure timerIn addition to the functionality of the “DC-0040 Diode laser controller MK1” an exposition timer is added to this device. It allows to switch the attached laser on for a limited time with a certain delay. Furthermore the display is darkened during the exposure time to avoid undesired light which may effect the intended illumination. The screen remains dark unless the panel screen is touched.DC-0090 Laser controller & exposure timer

DC-0100 Stepper motor controllerThis device controls two phase stepper motor with a maximum current of 1 A. The stepper motor is connected via a 15 pin SubD HD connector located at the rear of the device. The controller is operated by a microprocessor and a touch screen is used to select the parameter to be changed. A digital knob is used to set the value for the selected parameter. The controller is used for rotation as well as translation stages and the corresponding user interface is selected at the startup of the device. A USB bus is provided to control and collect data with external software.DC-0100 Stepper motor controller

DC-0110 Vacuum ControllerThe controller contains a precise pressure sensor with an operating range of 300 - 1100 hPa with an accuracy of ±0.1 hPa, a temperature sensor with an accuracy of ±0.1 °C and a humidity sensor with an accuracy of ±1%. The pressure cell is connected via two flexible hoses to the vacuum controller. One hose is connected to the integrated vacuum pump and the other one via a valve to the rear of the controller, where either the surrounding air or another provided gas streams into the cell. The pressure inside the cell is set by this valve and displayed on the controller. In addition, the temperature and humidity of the air or gas is displayed. The related index of refraction is calculated by the processor applying Edlen’s formula.DC-0110 Vacuum Controller

DC-0120 Si-PIN Photodetector, BPX61 with connection leadsA Si PIN photodiode is integrated into a 25 mm housing with two click grooves. A BNC cable and connector is attached to connect the module to the photodetector signal box ZB1. The photodetector module is placed into the C25 mounting plate where it is kept in position by three spring loaded steel balls.DC-0120 Si-PIN Photodetector, BPX61 with connection leads

DC-0124 Si-PIN Photodetector, BPX61 with connection leadsSi-PIN Photodetector with ST jack and connection leadsA Si PIN photodiode is integrated into a ST panel jack which is mounted into a 25 mm housing with two click grooves. A BNC cable and connector is attached to connect the module to the photodetector signal box ZB1. The photodetector module is placed into the C25 mounting plate where it is kept in position by three spring loaded steel balls.DC-0124 Si-PIN Photodetector, BPX61 with connection leads

DC-0140 Mini SiPIN photodetector with connection leadA Si PIN photodiode is integrated into a 12 mm housing. A BNC cable and connector is attached to connect the module to the photodetector signal box ZB1.

DC-0160 InGaAs Photodetector  with connection leadsAn InGaAs photodiode is integrated into a 25 mm housing with two click grooves. A BNC cable and connector is attached to connect the module to the photodetector signal box ZB1. The photodetector module is placed into the C25 mounting plate where it is kept in position by three spring loaded steel ballsDC-0160 InGaAs Photodetector  with connection leads

DC-0164 InGaAs Photodetector ST with connection leadsAn InGaAs photodiode is integrated into a ST panel jack which is mounted into a 25 mm housing with two click grooves. A BNC cable and connector is attached to connect the module to the photodetector signal box ZB1. The photodetector module is placed into the C25 mounting plate where it is kept in position by three spring loaded steel balls.DC-0164 InGaAs Photodetector ST with connection leads

DC-0170 UV Photodetector with connection leadsA UV (peak 360 nm) photodiode is integrated into a 25 mm housing with two click grooves. A BNC cable and connector is attached to connect the module to the photodetector signal box ZB1. The photodetector module is placed into the C25 mounting plate where it is kept in position by three spring loaded steel ballsDC-0170 UV Photodetector with connection leads

DC-0200 High sensitivity power sensor, 0.3-11 µmThe detector is provided with a wavelength independent (0.3 to 11 µm) thermoelectric element and is designed for a power range of 500 µW to 2W with a resolution of 50 µW. The round sensitive area has a diameter of 19 mm. The detector is attached to a 20 mm wide carrier MG20 and requires for the operation the “CA-0260 Laser power meter LabMax-TO “DC-0200 High sensitivity power sensor, 0.3-11 µm

DC-0210 InGaAs Photodetector, ultrafast with amplifier 120 MHzA fast InGaAs photodiode is built into a ST fibre panel jack and set into a C25 housing. To achieve the high speed of 120 MHz the preamplifier is located close to the photodiode inside the C25 housing. For the power supply a junction box is provided which also has a BNC panel jack for the amplified signal.DC-0210 InGaAs Photodetector, ultrafast with amplifier 120 MHz

DC-0220 Si PIN Photodetector, ultrafast with amplifierA fast InGaAs photodiode is built into a ST fibre panel jack and set into a C25 housing. To achieve the high speed of 400 MHz the preamplifier is located close to the photodiode inside the C25 housing. For the power supply a junction box is provided which also has a BNC panel jack for the amplified signal.DC-0220 Si PIN Photodetector, ultrafast with amplifier

DC-0250 Active Si PIN PhotodetectorThis Si PIN is connected via a 15 pin SubD HD connector to its control unit “DC-0020 LED and Photodiode Controller “ (<?>). The EEPROM inside the connector stores the sensitivity curve and other useful information of the detector which is read by the microprocessor when connected to it.DC-0250 Active Si PIN Photodetector

DC-0260 Audio fringe detectorThis device is an audio amplifier with an input designed for a photodiode which is connected via a BNC panel jack. Changes of the light intensity falling onto the detector will be converted into an audible sound. Either the built-in  speaker or an external earphone is used to listen to the light intensity changes. This detector is very useful for white light interferometer to detect the appearance of fringes.DC-0260 Audio fringe detector

DC-0270 Filament and LED lamp controllerThe controller is designed for precise control of the voltage and current of the “LQ-0440 Tungsten filament white light source“. The microprocessor evaluates the temperature of the cold lamp to get the environmental temperature T0 which is required for the calculation of the filament temperature. The touch screen displays the current and voltage and the calculate resistor as well as the temperature of the lamp body. The digital knob is used to set the current of the filament. The controller is also used to operate LED and sets the touch screen display automatically by reading the EEPROM information from the attached component. DC-0270 Filament and LED lamp controller

DC-0310 Laser frequency stabilizerThe main part of the device is a digital PID controller. The controller is equipped with a touch screen display and in conjunction with the digital knob the PID parameter are selected and set. The input variable for the PID controller is the beat frequency of the Zeeman split HeNe laser modes. The goal is to keep this frequency to its minimum. Thus the input signal is amplified, digitized and the frequency determined by a counter. The output signal of the controller is designed to drive the heater coil of the HeNe laser. The amplified input signal (beat frequency) is available via a BNC panel jack at the rear of the device.DC-0310 Laser frequency stabilizer

DC-0320 US particle generatorTo provide particles which can be detected by an LDA an ultrasonic particle nebuliser using an ultrasonic crystal in conjunction with a blower is used. In a two step process a jet of “dry” water particles is generated. The speed of the jet is controlled by an adjustable air blower. The device is filled with distilled and abacterial water. The speed of the air blower is set via the touch screen and the digital knob. The display informs about the temperature of the US transducer as well as about the water reservoir level. A push  button on the touch screen is used to switch the US transducer on and off.DC-0320 US particle generator

DC-0356 Pockels Cell HV Driver DQ21, HV and Trigger CableThis Pockels cell driver is used for q-switch operations. The driver DQ21 has the following properties:Output voltage: 320..1940 VSwitching time: 11 ns @ 1.500 V and 30 pF cap. loadDelay: 54..1090 µSRepetition rate: max. 20 kHzTrigger input: TTL, a falling edge switches the high voltage offAn extra cable is provided. One end of the cable has a Lemosa connector for the connection to the driver DQ21 and the other one provides a BNC connector with a T-piece to monitor the trigger on an oscilloscope.DC-0356 Pockels Cell HV Driver DQ21, HV and Trigger Cable

DC-0358 Pockels Cell Driver DQ21This Pockels cell driver is used for polarisation experiments. The driver DQ21 has the following properties:Output voltage: 320..1940 VSwitching time: 11 ns @ 1.500 V and 30 pF cap. loadDelay: 54..1090 µSRepetition rate: max. 20 kHzTrigger input: TTL, a falling edge switches the high voltage offDC-0358 Pockels Cell Driver DQ21

DC-0380 Photodetector Junction Box ZB1The signal box contains a resistor network and a replaceable 9V battery and is prepared to accept all kinds of photodiodes provided they are connected to the BNC input (PDIN) as shown in the schematic of the figure below. DC-0380 Photodetector Junction Box ZB1

DC-0384 Photodetector Junction Box ZB1Photodetector junction box with amplifierThis junction box provides in addition to the DC-0380 (see above) an 10 x amplifier. DC-0384 Photodetector Junction Box ZB1

DC-0800 CCD Camera ControllerThis microprocessor controlled device has a large 7 inch touch screen display. It is designed to control the attached CCD camera DC-0810 (see below) and to display the captured image. The control parameters for the camera like exposition time and aperture are set via the touch screen. The captured images can be stored on an attached USB pen drive. DC-0800 CCD Camera Controller

DC-0820 CCD Camera ModuleThe color CCD camera module is mounted to a 30 mm wide carrier MG30 in such a way, that the centre of the CCD sensor matches the optical height of the optical bench. The focus is set manually while observing the result on the display of the DC-0800 camera controller.DC-0820 CCD Camera Module

Flag of Germany