Photonics

Chroma's photonics test solutions address mainly on automated test equipment for laser diode, VSCEL, LED both in wafer and chip format as well as optical communication active components.

With more than 30 years of power electronic and automated optical test experience, Chroma offers many integrated mechanism and temperature control technology capable of performing reliable characteristics and aging test for optical devices under various temperature test conditions.

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Test Systems
  • Burn-In, reliability and life test
  • ACC and AVC modes
  • Independent channels for source and measurement
  • Applicable for burn-in, reliability, and life testing
  • AAC and APC control modes
  • Individual channel driving and measurement
  • Burn-in, reliability, and life test
  • AAC and APC control modes
  • Independent channel for source and measurement
  • Spike-Free sourcing
  • Burn-in, reliability, and life test
  • Dark Current and Breakdown Voltage
  • 256 channels Bi-polar device source per drawer
  • Full Turn-Key Automated Test for edge and surface emitting laser diodes
  • High precision and large capacity carrier, interchangeable with other automated equipment
  • Burn-in, Reliability, and Life Testing
  • Up to 6912 Channels
  • Up to 20A per device
  • Up to 150°C
  • CoS, C-Mount, T0, VCSEL Card, VCSEL Package, Custom
  • High speed and accuracy
  • Lateral, verticle, and flip chip
  • Wide power test range (up to 200V/2A)
  • Up to 8" wafers
  • Chroma® Huge Photo Detector
  • All-in-one test system
  • Flexible test station arrangement
  • Precise temperature control -20~85°C
  • Large beam angle measurement
  • Nanosecond high-speed testing (optional)
  • References: ISO/IEC standards
  • Up to 6” water
  • Wide range and precise temperature control
Inspection Systems
  • Double-side inspection (post-diced wafer)
  • Full color defect detection
  • Selectable resolution and algorithms: VCSELs, PDs, LEDs, and Discrete Devices
  • Simultaneous double-side color inspection
  • 6” wafer / 8” inspection area
  • Automatic wafer alignment
  • Wafer shape / edge identification

Comprehensive characterization

  • Chromaticity
  • Luminance
  • Uniformity
  • Dies defect
  • Voltage / Current
  • Up to 0.1 nm height resolution for measurement
  • Use white light interference measurement technique to do nondestructive and rapid surface texture measurement and analysis
  • 1D, 2D, and 3D measurement capabilities
Instruments
  • High & programmable voltage / current slew rate
  • Low output noise
  • High programming / measurement speed
  • Bidirectional driving with 300W (27V/12A) and 800W (40V/20A) output
  • Filtered PWM output with >90% driving power efficiency
  • Two Model ESD Pulse Generation : Human body model and Machine model
  • Programmable Auto Test : Pulse delay, cycle, and polarity are programmable
  • Models with 1, 8, and 64 channels on-line data recording.
  • Support B, E, J, K, N, R, S, and T type thermal couples