The VCSEL I-V Test Subsystem is comprised of hardware components, software, and accessories which require assembly, installation, and setup to prepare the subsystem to test VCSEL DUTs.
The VCSEL I-V Test Subsystem is composed of the following hardware and instrumentation.
The VCSEL I-V Test Subsystem can contain up to four NI-4134 pulse generators and PXIe-4135 SMUs. The number of pulse generators and SMUs in the subsystem corresponds to the number of subsystem channels that can perform I-V measurements during test execution.
In the VCSEL I-V Test PXI Subsystem, the PXIe-5162, PXIe-8880, and each PXIe-4135 are installed in the PXI chassis during the subsystem manufacturing process. During the subsystem set up process, you need to connect a standalone NI-4134 pulse generator to a PXIe-4135 and a load board with cables.
In the VCSEL I-V Test MXI Subsystem, the PXIe-5162, the PXIe-8398, and each PXIe-4135 are installed in the PXI chassis during the subsystem manufacturing process. During the subsystem set up process, you need to connect a standalone NI-4134 pulse generator to a PXIe-4135, your computer, and a load board with cables, install the PCIe-8398 to your computer, and connect the PCIe-8398 to the PXIe-8398.
NI offers a one-channel configuration and a four-channel configuration of the VCSEL I-V Test Subsystem, as well as an expansion kit to add a channel to a subsystem. Refer to the following table for part numbers of subsystem configuration options.
|Subsystem Configuration Option||Part Number|
The VCSEL I-V Test Subsystem requires a connection to a load board to test packaged VCSEL DUTs. You must design this load board for your specific VCSEL I-V test application. Refer to the Load Board Design section to view a reference load board design and understand the load board design guidelines for the VCSEL I-V Test Subsystem.
For wafer test applications, the NI-4134 and PXIe-5162 in the VCSEL I-V Test Subsystem require installation of a differential probe on each instrument BNC cable to execute wafer tests. You must supply the differential probes for your wafer test application. Ensure you use differential probes that can maintain 50 Ω impedance at the DUT.
The following cables and accessories are required to set up the VCSEL I-V Test Subsystem.
The quantity of cables and attenuators included in the shipping kit corresponds to the channel configuration of the VCSEL I-V Test Subsystem. Refer to Channel Configurations for more information about cable connections and arrangement.
|Component||Description||Included in Kit?|
|BNC cables||BNC (m)-to-BNC (m), RG-223, precision length tolerance, 2 m||Yes|
|MXI-Express Gen 3 x8 cable||MXI-Express cable, Gen 3 x8, Copper, 3 m||Yes|
|Triaxial cables||Triax (m)-to-Triax (m), low noise, low leakage, 1 m||Yes|
|USB cable||Type A-to-Type B||Yes|
|SMU output connector assembly||LO/Sense LO output connector assembly||Yes|
|SMU safety interlock connector||Safety interlock to ensure PXIe-4135 outputs are in a safe state||Yes|
|30 dB attenuator||30 dB fixed attenuator, BNC (m)-to-BNC (f), up to 3 GHz, 2 W||Yes|
|Male BNC short connector||Male BNC short connector required for system compensation procedure.||Yes|
|Female BNC short connector||Female BNC short connector required for system compensation procedure.||Yes|
|NI-4134 grounding wire||Grounding wire with ring lug for installation onto the NI-4134 front panel.||Yes|
|NI-4134 power supply||Power supply with a male connector for the NI-4134 front panel and an AC input.||Yes|
|NI-4134 power cable||AC power cable compliant with local standards||No|
|PXIe-1092 chassis grounding wire||16 AWG wire to connect chassis to facility ground||No|
|PXIe-1092 chassis power cable||AC power cable compliant with local standards||No|
|PXIe-8880 DisplayPort cable||DisplayPort 1.2 to connect PXI controller to a monitor||No|
|PXIe-8880 Ethernet cable||Ethernet to connect PXI controller to the facility network||No|
Refer to the following part numbers to order additional cables, attenuators, or shorting caps.
The following equipment is required for the subsystem set up process. This equipment is not included in the subsystem shipping kit.
To perform high-speed pulse testing on the VCSEL I-V Test Subsystem, you need the following software:
You must install LabVIEW before installing VCSEL I-V Test Software.
Refer to the VCSEL I-V Test Software Readme for more information about compatible software versions.