Table Of Contents

What You Need to Get Started

Last Modified: January 11, 2021

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.

Hardware Components

The VCSEL I-V Test Subsystem is composed of the following hardware and instrumentation.

  • NI-4134 Pulse Generator (p/n 786944-01)
  • PXIe-4135 Source Measure Unit (p/n 783762-01)
  • PXIe-5162 Oscilloscope (p/n 782622-06)
  • PXIe-1092 PXI Chassis (p/n 784781-01)
  • PXIe-8880 PXI Controller (p/n 783513-05)
  • PCIe-8398 PCI Host Interface Card (p/n 784179-01)
  • PXIe-8398 PXI Remote Control Module (p/n 784178-01)

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.

Table 1. Part Numbers of Subsystem Configuration Options
Subsystem Configuration Option Part Number
One-channel configuration 866278-11 866278-21
Four-channel configuration 866278-14 866278-24
Expansion kit 866278-UPG1

Load Board

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.

Differential Probes

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.

Cables and Accessories

The following cables and accessories are required to set up the VCSEL I-V Test Subsystem.

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Note  

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.

Table 2. VCSEL I-V Test Subsystem Cables and Accessories
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
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Note  

Refer to the following part numbers to order additional cables, attenuators, or shorting caps.

  • Triaxial cable: 785659-01
  • BNC cables (x2): 787254-02
  • MXI-Express Gen 3 x8 cable (x1): 785550-03
  • VCSEL I-V Test Subsystem Replacement Accessories: 787883-01
    • 30 dB Attenuator
    • Male BNC shorting cap
    • Female BNC shorting cap

Equipment

The following equipment is required for the subsystem set up process. This equipment is not included in the subsystem shipping kit.

  • #2 Phillips screwdriver
  • Insulation strip tool
  • Scissors, knife, or box cutter

Software

To perform high-speed pulse testing on the VCSEL I-V Test Subsystem, you need the following software:

  • VCSEL I-V Test Software
  • LabVIEW
  • NI-DCPower
  • NI-SCOPE
  • PXI Platform Services

You must install LabVIEW before installing VCSEL I-V Test Software.

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Refer to the VCSEL I-V Test Software Readme for more information about compatible software versions.


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