• IR photoreceivers

    High-performance photoreceivers for Fourier-transform Raman (near IR) and long-wave IR spectroscopy utilize InGaAs photodiodes and HgCdTe photoconductors, respectively. Operation is at 77 K and uses integrated transimpedance preamplifiers. Both receivers have optimized gain-noise characteristics for operating frequencies u¥to 50 kHz. The Raman unit has amplifier-limited performance, and the HgCdTe is background limited.
    May 1, 1995

    High-performance photoreceivers for Fourier-transform Raman (near IR) and long-wave IR spectroscopy utilize InGaAs photodiodes and HgCdTe photoconductors, respectively. Operation is at 77 K and uses integrated transimpedance preamplifiers. Both receivers have optimized gain-noise characteristics for operating frequencies u¥to 50 kHz. The Raman unit has amplifier-limited performance, and the HgCdTe is background limited.

    Cooled photodiodes

    Sign up for Laser Focus World Newsletters
    Get the latest news and updates.

    Related

    Case Study: Custom Microlens Arrays Design
    Photonics Hot List: June 13, 2025
    Hexapod 6-DOF Active Optical Alignment Micro-Robots - Enablers for Advanced Camera Manufacturing
    Sponsored
    Laser Assisted Wafer Slicing with 3DOF Motion Stages
    Sponsored

    Voice Your Opinion!

    To join the conversation, and become an exclusive member of Laser Focus World, create an account today!