Technology From: Analog Modules

Laser Rangefinder (LRF) Receivers/Counters

Laser Rangefinder Receivers are designed for laser ranging applications in which high sensitivity and fast recovery are required. The hybrid versions are designed to meet MIL-STD-883D requirements. Either a silicon avalanche photodiode (APD) or an InGaAs PIN photodiode or APD is available to detect 1.064µm or 1.55µm wavelengths. Different receivers also are available to accommodate pulsewidths ranging from 0.5ns to 30ns FWHM.

Technology From: Analog Modules

Laser Spot Trackers

The Model 742DP is a new generation of laser spot tracker with wide flexibility for missile and platform tracker applications. The detector is temperature controlled and optimised for 1.06µm. Independent five channel noise detectors set the lowest thresholds to achieve long acquisition ranges for different background light and spot positions and special circuits resist sunlight blinding in any one or all quadrants. A range of N-type custom-designed detectors gives the highest performance at 1.06µm. A separate substrate allows the detector size or type to be optimised for your application.

This model comprises a hermetically-sealed temperature-controlled detector with built-in front-end electronics, mounted on a SMT board. A second printed board contains analogue and digital processing circuits. The individual channels are digitised with a high-speed A-D converter and output as a serial digital interface for steering. An adaptive threshold control allows optimum signal-to-noise operation and power management is used to reduce power consumption.

Technology From: Analog Modules

Optical Receivers

The 7510 is a high gain low noise APD-preamp optical receiver. The compact construction (modified TO-8 header) and PCB mounting capability make the 7510 ideal for miniature applications. The thermo-electric heater/cooler allows the highest performance to be achieved with an external control circuit.

Technology From: Analog Modules

Photodetector-Amplifiers

The 710 Series are high sensitivity, low noise Photodetector-amplifier modules that offer the flexibility of incorporating a variety of silicon or InGaAs, PIN or APD Photodetectors. These amplifiers also offer the capability of integrating other detectors on a custom basis.

Technology From: Analog Modules

Low Noise Amplifiers

Analog Modules designs and manufactures of a range of transimpedance, Voltage and Logarithmic amplifiers for OEM

Products

• The 311, 313A and 341 Series amplifiers which are designed for current source input applications in which high gain and low noise are required
• The 321A, 322, 351A & 353A voltage amplifiers designed for instrument and transducer applications
• The Model 384 high-speed logarithmic amplifier which offers signal compression from microvolts to volts with exceptional linearity

Technology From: Analog Modules

Fast Peak Pulse Stretchers

The Model 611A Pulse Stretcher outputs DC levels equal to the peak value of a single narrow pulse down to 20ns FWHM. Fast independent resets facilitate processing of complex multiple events. The DC output level allows for post processing at slower speeds.

Technology From: Analog Modules

Fibreoptic Links

The 732T/R Fibreoptic Link is designed for short-haul transmission of electrical signals for applications in which using electrical conductors are not appropriate. The 732T/R provides transparent transmission of AC and DC information without the undesirable effects of EMI pick-up noise. Units are sold as a transmitter/receiver pair.

Technology From: Analog Modules

High Voltage Bias Supplies

The Model 520 Series are low noise power supplies designed for Photodetector biasing applications. Output voltages up to 800V are available in two polarities. The compact size and shielded metal case make the Model 520 Series attractive for a variety of low noise biasing applications. The 523/524 versions are compact, hermetically sealed, designed for very low noise and ideal for military APD biasing applications.

Technology From: Analog Modules

Capacitor Charging Power Supplies

Warsash Scientific offer a range of AC input and DC input capacitor charging power supplies which provide unequalled performance in a variety of rugged and reliable package configurations. These supplies provide the highest power density and best voltage vs. power curve available on the market today. The power supplies are ideal for medical and industrial solid state pumping applications being CE marked and certified to UL60601-1 and based on a proven design topology.

Technology From: Analog Modules

Laser Diode Drivers

Model 762 OEM programmable seed laser diode drivers (pump laser diode drivers) are ideal for driving 14-pin butterfly packaged laser diode modules for use in CW or pulsed fibre MOPA systems for materials processing, LIDAR systems for remote sensing, laser communication applications and range finding.

Technology From: Analog Modules

CW Arc Lamp Products

For pumping continuous-wave arc lamps, Warsash Scientific can supply turn-key systems and both rack-mount custom packages and individual modules for OEM use. Efficient and reliable, these products provide for both lamp ignition and control of lamp currents up to 60A. These CW products are designed to meet the European medical safety standard EN 60601-1 making these products the ideal choice for both medical and industrial laser applications.

Technology From: Analog Modules

Pulsed Flashlamp Drivers

Warsash Scientific offer a complete family of micro-processor driven controllers for solid-state lasers. Based on a modular design approach, each controller is optimised for a given application or specific customer need. The 8800 series from Analog Modules provides a capacitor charging power supply, fixed or variable pulse forming network, simmer supply and all the electronic circuitry needed to drive flashlamps for pumping solid-state lasers. Software control allows operating parameters such as pulse energy, pulse repetition rate, pulsewidth, and mode of operation to be easily altered. Complete control of timing signals for multiple lamp and Q-switched applications is also provided by the embedded software.

Technology From: Analog Modules

Simmer Supplies

In pulsed laser systems, flashlamps are often simmered during the period of time between the main discharge pulses. Simmering is nothing more than allowing a trickle current (50mA to 10A) to flow in the lamp between pulses. Flashlamp simmering is beneficial for two reasons:

1. An established conduction path in the flashlamp at the time of the main discharge pulse results in less variation in shot-to-shot pulse energy.
2. Arc expansion during the pulse is less violent, lamp lifetimes are improved in simmered systems. In general, both stability and lamp lifetime improve with increasing simmer current.

This range of simmer supplies are powered from a 24VDC source and provide both a built-in automatic ignition restrike circuit and a post-flash boost mechanism. These features minimise the possibility of missing pulses when operating with a continuous train of laser pulses.

Technology From: Analog Modules

Pockels Cell Drivers

This line of Pockels cell drivers employs MOSFET technology which provides excellent noise immunity and a smooth output waveform. These OEM drivers offer reliable, high voltage pulsing in compact surface mount modules. Drivers include an internal high voltage power supply and provide a monitor to observe the high voltage output amplitude prior to the pulse. Pockels cell drivers meet the stringent reliability requirements for medical and industrial applications.