LDTC2/2 Laser Diode Drivers and TEC Temperature Controllers

Output Current LD 0.5, 1 A; Benchtop or Chassis Mounting; Output Current TEC ±2.2 A; Laser Compatibility Type A, B Wavelength Electronics’ LDTC series of laser diode drivers and TEC temperature controllers combines Wavelength Electronics’ proprietary FL500 and highly stable WTC3243 in one compact and easy-to-use module. All the controls and indicators are onboard for simple plug-and-play operation. LDTC modules are in use around the world providing trouble-free reliability in a broad range of applications. Wavelength Electronics has done critical research and design work into safely controlling laser diodes. The result is a module that saves you money in development and manufacturing and delivers trouble-free service over the life of the system. LDTC modules require minimal overhead electronics, so your engineers can focus on high-level design features that differentiate you from your competitor. The compact LDTC modules are easily mounted in your laser system, with latching connectors for easy manufacturing. The flexibility of the LDTC design allows the controller to be operated from a single power supply. The power supplies can also be separated, if your application requires higher compliance voltage. The laser driver is based on Wavelength Electronics’ popular FL500 series, known for low noise output and trouble-free operation. Two models are available, providing either 500 mA (LDTC0520) or 1.0 A output current (LDTC1020). The current limit circuit cleanly clamps laser diode current without ringing or overshoot and recovers without inducing a phase shift in a modulated laser signal. The temperature controller is designed around the WTC3243, Wavelength Electronics’ ultra-stable temperature control module known for the ability to sweep load temperature across ambient. Independent cooling- and heating-current limits allow the LDTC series to be used with thermoelectric coolers (TECs) or resistive heaters and either negative or positive temperature coefficient sensors. The LDMOUNT-5A, a 14-pin butterfly laser diode mount with integrated heat sinking, is available for simple connections between the LDTC and the laser. Remote computer control is available using the USBKIT, which also allows graphing and datalogging. Download the brochure to view a more detailed specification chart, and then get in touch with AMS Technologies’ sales engineers so we can help you choose the right driver for your application. Free, effective and responsive technical support is available to simplify integration of Wavelength products into your OEM design. Standard product can be easily modified to meet your application requirements. Get in touch with the AMS Technologies laser diode driver experts to discuss your customized solution! Key Features: Module Type, Benchtop or Chassis Mounting Small Package Size: 60 x 74 x 28 mm Compatible With Type A and B Lasers Laser Diode Output Current: up to 500 mA or 1 A Low Noise: 3 µA RMS Noise at Full Scale Bandwidth: 500 kHz (CC, Sine Wave), 100 kHz (CC, Square Wave) Slow-Start (15 mA/ms ) & Brownout Laser Diode Protection Constant Current or Constant Power Adjustable Laser Diode Current Limit Drive ±2.2 A of TEC or RH Current Separate Heat & Cool Current Limits Single or Dual Power Supply Operation +3 to +12 V +4.5 to +30 V (TEC Driver) Maximum Power Dissipation: 4 W (LD Driver), 9 W (TEC Driver) Remote TTL Shutdown or Interlock Failsafe Setpoint Default for D/A Chassis Mount Includes All Cables Applications: Range Finders; Telecom Laser Modules; Military & Aerospace; Research & Development; Airborne Metrology; Academic Research; Laser Diode LIV Testers; Other

Pigtail or Removable Style; 400 to 2100 nm; Line Width 0.3 nm; Insertion Loss 0.6 dB; Fiber Type SM, MM, PM; Connector Type FC/PC, ST, SC, LC, MU, None OZ Optics’ FF series of fixed filters transmit or block specific wavelengths of light as they travel through the optical fiber. Light from the input fiber is first collimated and passed through the filter. The beam is then focused into the output fiber. Filter linewidths are normally defined in terms of full width at half maximum (FWHM). The standard filters used have a smooth, rounded transmission spectrum that is the result of a single Fabry Perot type cavity, simply made up of two reflectors separated by a fixed spacer of some thickness. Other filter designs are available. For instance, flat top bandpass filters are made by stacking multiple cavities together. By increasing the number of cavities one can increase the roll-off slope therefore improving the out-of-band rejection level. Please contact AMS Technologies for custom filter designs that meet your requirements. Fixed filters using single mode (SM), multi mode (MM) or polarization maintaining (PM) fibers are offered. In general, OZ Optics uses polarization maintaining fibers based on the PANDA fiber structure when building polarization maintaining components and patch cords. However, OZ Optics can construct devices using other PM fiber structures. OZ Optics also carries some alternative fiber types in stock, please contact AMS Technologies for availability. If necessary, OZ Optics is willing to use customer supplied fibers to build devices. For tunable filters refer to OZ Optics’ TF-100 series of digital tunable filters, TF-100-11 series of motor driven tunable filters, TF-11 series of manually adjustable polarization insensitive tunable filters, BTF-11 series of manually adjustable variable bandwidth tunable filters or BTF-100 series of motorized adjustable variable bandwidth tunable filters. Key Features: Narrow Line Widths Rugged and Compact Size Removable Filter Holder Designs Wide Wavelength Range Single Mode (SM), Multi Mode (MM) and Polarization Maintaining (PM) Fiber Versions Expanded Beam Technology Applications: Dense Wavelength Division Multiplexing; CATV, LAN and Telecommunications Use; Test and Measurement

The LDTC 2/2 combines a 2.2 Amp laser driver and 2.2 Amp temperature controller on one small board. Available as an open frame or in a chassis mount enclosure.The WTC3243 will control temperature using thermistors, RTDs, or linear temperature sensors such as the LM335 or the AD590. Adjust temperature using the onboard trimpot or a remote voltage input from a panel mount potentiometer, DAC, or other voltage source. A default temperature setpoint configuration provides fault tolerance and avoids accidental damage to system components. Adjustable trimpots configure heat and cool current limits.The heart of the laser driver section is the WLD3343 2.2 Amp Laser Driver. It maintains precision laser diode current (Constant Current mode) or stable photodiode current (Constant Power mode) using electronics compatible with A/B Type lasers.Ideal for integrated laser driver or LED packages that include termperature control, often utilized in medical diagnostic equipment, remote sensing, analytical instrumentation, military and communications applications. Key Features LDTC2/2 Small package size Single supply operation possible Cost Effective Key Features Laser Diode Driver Default current range is 2.2 A. Custom ranges,from 3 mA up, are easily configured Slow start laser diode protection Constant Current or Constant Power modes Compatible with A or B type laser diodes Adjustable laser diode current limit Remote TTL Shutdown / Interlock Key Features Temperature Controller Drive up to 2.2 A of TEC current Set temp using D/A - includes default to 1 Volt to avoid drive when D/A is turned off or signal is lost Ultra-stable PI control loop Separate Heat & Cool current limits Single power supply operation possible