401746 ILX Lightwave SCI Data Board

The ILX Lightwave LTS-9300 Laser Diode Life-Test and Burn-In System offers concurrent flexibility: configure one drawer with COC devices in long-term qualification and use another drawer for burn-in testing of packaged butterfly devices.

When the user installs the LTS-9300, future flexibility is guaranteed. The user specifies the test system needed today, and the LTS-9300 allows future modification to the system as test requirements evolve. The user can add more channels, higher power laser drive, internal temperature control, or new DUT fixtures—and the rack never leaves the test floor.

The LTS-9300 is essentially six burn-in systems. That means each drawer can be operated independently. The user can even load new DUTs while the other drawers are running.



The LTS-9300 includes a comprehensive software package. ILX Lightwave's standard application software runs the rack quickly and smoothly. Once the test is running the user can monitor drawer status, individual DUT status, and even set alarms to flag your test floor operators when a DUT operates outside of the user's specifications.

If test requirements change outside the scope of the standard application software, the user's software engineers can use the ActiveX® programming tools to quickly develop the exact test software required.



The LTS-9300 is designed to handle everything from low power transmission lasers to high power pumps. Thanks to expandable power supplies and a variable-attenuation optical power monitoring system, the LTS-9300 can handle laser diodes all the way up to 5 A drive current and 5 W output power.



The LTS-9300 design team is driven by one vision: to provide the user with the most versatile and reliable laser diode test system. With built-in flexibility, the LTS-9300 is a valuable and reliable tool that advances your product line and keeps the user ahead of evolving semiconductor technology.



Each drawer has eight slots for any combination of current source boards and internal temperature control circuit boards. For life-test systems, four slots can be loaded with four-channel current source boards for a total of 16 current sources, and the other four slots can accommodate four-channel internal temperature control boards.

For high-density burn-in applications, all eight slots can be loaded with four-channel current source boards for a total of 32 independent laser current sources.



For comprehensive DUT burn-in and characterization, the LTS-9300 can be equipped with high-precision internal temperature controllers (ITC) for each DUT channel. Each ITC will output up to 5 A, and the user can enter the thermistor calibration constants to suit the user's devices.



Each drawer is equipped with a four-channel, high-precision, PID-feedback temperature controller that divides the drawer into four control zones. Combined with calibrated thermistor sensors, this approach guarantees high accuracy temperature control and low DUT-to-DUT temperature variation.



Each DUT channel is instrumented with a back facet photodiode measurement circuit. This circuit is used to either monitor the laser power output through the course of the test, or in the laser control feedback loop for constant power mode operation. The user can also choose to apply a 5 V reverse bias to the back facet photodiode.



Laser forward voltage measurement is standard for each DUT channel, giving the user the ability to monitor all the critical parameters of each laser during the burn-in test.



Front facet detectors for relative power measurement are also included for each DUT channel in the LTS-9300. As with the back facet diode circuit, the front facet circuit can be used to monitor the laser output power or in the feedback loop to control the laser at constant output power.

A variable attenuation mechanism lets the user use the same drawer for low and high-power lasers without switching the detector bank.



The LTS-9300 features ample DUT space in each drawer. This makes it easy to load butterfly, DIL, mini-DIL, TO can, or Chip-On-Carrier devices simply by changing the DUT fixturing tray. This removable fixturing tray makes it a snap for the user to load your DUTs away from the rack, at the user's ESD-safe workbench. Load COC devices while they’re still in their manufacturing fixtures, minimizing the handling at a delicate stage of assembly.

With a standardized instrument interface, the user can create any type of device fixtures the user may need as your product line evolves.