Advanced Analytical Tools for Your Lab

Single Photon Counting Modules (SPCM)

Revolutionizing Light Detection

Introduction to Photon Counters and Detectors

Photon counters are cutting-edge devices designed to detect and measure individual photons, the fundamental particles of light. These instruments are essential in applications requiring extreme sensitivity and precision, making them invaluable in fields such as quantum computing, medical imaging, spectroscopy, and environmental monitoring.

Photon counters operate by capturing single photons and converting them into electrical signals, enabling the detection of light at incredibly low intensities. This technology allows scientists and engineers to explore and analyze phenomena that are invisible to conventional light detection methods.

Explore our offer

Our category of photon counters offers a diverse range of products tailored to meet the specific needs of various applications. Among our offerings, you will find:

  • Single Photon Counting Modules (SPCM)
  • Continuous-Intensity Photon-Resolving Modules (CIPRM)

Our partner for photon detectors

Single Photon Counting Modules (SPCM)

SPCMs are highly sensitive detectors designed for applications that demand the utmost precision in photon detection. These modules are commonly used in quantum optics, fluorescence spectroscopy, and high-resolution imaging. Features include:
* Exceptional photon detection efficiency
* Low dark count rates
* Fast response times
* High reliability and stability

Catalog

Key Features

  • Peak PDE: > 70% @ 650nm
  • 180µm active area
  • > 35 Mcps dynamic range
  • Gated output
  • Single +5 V supply
  • RoHS-compliant
  • Low after pulse probability
  • High uniformity over large active area
  • Unmatched linearity

Applications

  • LIDAR
  • Quantum Cryptography
  • Photon correlation spectroscopy
  • Astronomical observation
  • Optical range finding
  • Adaptive optics
  • Ultra-sensitive fluorescence
  • Particle sizing
  • Microscopy

AVAILABLE MODELS OF SPCM

Excelitas SPCM-AQRH

SPCM-AQRH

Detection of single photons over the wavelength range of 400nm to 1060nm with performance parameters superior to other solid state or vacuum-tube based photon counters.
Photon Detection Efficiency / Maximum rate: 65% @ 650 nm
Typ. Coun Rate before saturation 37 Mc/s
Active area diameter 180 μm

Each model can have one option of the following connectors: Free space window, FC fiber adaptor, C-mount bracket (BR2) or Tube cage mount bracket (BR1)

    SEARCH:

    • Choose a specific value to narrow down the table.
    • For example: “1500”
    Part NumberProducerMaximum Dark Count (c/s)Dead Time (count rate below 5M/c) (ns)Output pulse width (ns)
    SPCM-AQRH-10Excelitas15002210
    SPCM-AQRH-11Excelitas10002210
    SPCM-AQRH-12Excelitas5002210
    SPCM-AQRH-13Excelitas2502210
    SPCM-AQRH-14Excelitas1002210
    SPCM-AQRH-15Excelitas502210
    SPCM-AQRH-16Excelitas252210
    SPCM-AQRH-20Excelitas15002818
    SPCM-AQRH-21Excelitas10002818
    SPCM-AQRH-22Excelitas5002818
    SPCM-AQRH-23Excelitas2502818
    SPCM-AQRH-24Excelitas1002818
    SPCM-AQRH-25Excelitas502818
    SPCM-AQRH-26Excelitas252818
    SPCM-AQRH-30Excelitas15004228
    SPCM-AQRH-31Excelitas10004228
    SPCM-AQRH-32Excelitas5004228
    SPCM-AQRH-33Excelitas2504228
    SPCM-AQRH-34Excelitas1004228
    SPCM-AQRH-35Excelitas504228
    SPCM-AQRH-36Excelitas254228
    SPCM-AQRH-40Excelitas15002210
    SPCM-AQRH-41Excelitas10002210
    SPCM-AQRH-42Excelitas5002210
    SPCM-AQRH-43Excelitas2502210
    SPCM-AQRH-44Excelitas1002210
    SPCM-AQRH-45Excelitas502210
    SPCM-AQRH-46Excelitas252210
    SPCM-AQRH-50Excelitas15002818
    SPCM-AQRH-51Excelitas10002818
    SPCM-AQRH-52Excelitas5002818
    SPCM-AQRH-53Excelitas2502818
    SPCM-AQRH-54Excelitas1002818
    SPCM-AQRH-55Excelitas502818
    SPCM-AQRH-56Excelitas252818
    SPCM-AQRH-60Excelitas15004228
    SPCM-AQRH-61Excelitas10004228
    SPCM-AQRH-62Excelitas5004228
    SPCM-AQRH-63Excelitas2504228
    SPCM-AQRH-64Excelitas1004228
    SPCM-AQRH-65Excelitas504228
    SPCM-AQRH-66Excelitas254228
    Excelitas SPCM-AQRH-TR

    SPCM-AQRH-TR

    Detection of single photons over the wavelength range of 400nm to 1060nm with performance parameters superior to other solid state or vacuum-tube based photon counters.
    Photon Detection Efficiency / Maximum rate: 75% @ 650 nm
    Typ. Coun Rate before saturation 37 Mc/s
    Active area diameter 180 μm

    Each model can have one option of the following connectors: Free space window, FC fiber adaptor, C-mount bracket (BR2) or Tube cage mount bracket (BR1)

    Part NumberSingle Photon Counting ModulesMaximum Dark Count
    (c/s)    		Dead Time (count rate below 5M/c)
    (ns)    		Output pulse width
    (ns)
    SPCM-AQRH-10-TRExcelitas15002410
    SPCM-AQRH-11-TRExcelitas10002410
    SPCM-AQRH-12-TRExcelitas5002410
    SPCM-AQRH-13-TRExcelitas2502410
    SPCM-AQRH-14-TRExcelitas1002410
    SPCM-AQRH-20-TRExcelitas15002818
    SPCM-AQRH-21-TRExcelitas10002818
    SPCM-AQRH-22-TRExcelitas5002818
    SPCM-AQRH-23-TRExcelitas2502818
    SPCM-AQRH-24-TRExcelitas1002818
    SPCM-AQRH-30-TRExcelitas15003528
    SPCM-AQRH-31-TRExcelitas10003528
    SPCM-AQRH-32-TRExcelitas5003528
    SPCM-AQRH-33-TRExcelitas2503528
    SPCM-AQRH-34-TRExcelitas1003528
    SPCM-AQRH-40-TRExcelitas15002410
    SPCM-AQRH-41-TRExcelitas10002410
    SPCM-AQRH-42-TRExcelitas5002410
    SPCM-AQRH-43-TRExcelitas2502410
    SPCM-AQRH-44-TRExcelitas1002410
    SPCM-AQRH-50-TRExcelitas15002818
    SPCM-AQRH-51-TRExcelitas10002818
    SPCM-AQRH-52-TRExcelitas5002818
    SPCM-AQRH-53-TRExcelitas2502818
    SPCM-AQRH-54-TRExcelitas1002818
    SPCM-AQRH-60-TRExcelitas15003528
    SPCM-AQRH-61-TRExcelitas10003528
    SPCM-AQRH-62-TRExcelitas5003528
    SPCM-AQRH-63-TRExcelitas2503528
    SPCM-AQRH-64-TRExcelitas1003528
    Excelitas SPCM-AQRH-NIR

    SPCM-AQRH-NIR

    Optimized for the near-infrared (NIR) wavelength range of 780–950 nm.
    Peak photon detection efficiency (PDE) @ 780 nm: 70% typical
    Uniformity over a 180 μm diameter active area.
    The device is designed for applications such as microscopy, long-range single-photon LiDAR, quantum key distribution, and photon entanglement experiments, among other NIR single-photon uses.
    Each model can have one option of the following connectors: Free space window, FC fiber adaptor, C-mount bracket (BR2) or Tube cage mount bracket (BR1)

      Part NumberSingle Photon Counting ModulesMaximum Dark Count (c/s)Dead Time (count rate below 5M/c) (ns)Output pulse width (ns)
      SPCM-NIR-10Excelitas15002410
      SPCM-NIR-11Excelitas10002410
      SPCM-NIR-12Excelitas5002410
      SPCM-NIR-13Excelitas2502410
      SPCM-NIR-14Excelitas1002410
      SPCM-NIR-20Excelitas15002818
      SPCM-NIR-21Excelitas10002818
      SPCM-NIR-22Excelitas5002818
      SPCM-NIR-23Excelitas2502818
      SPCM-NIR-24Excelitas1002818
      SPCM-NIR-30Excelitas15003528
      SPCM-NIR-31Excelitas10003528
      SPCM-NIR-32Excelitas5003528
      SPCM-NIR-33Excelitas2503528
      SPCM-NIR-34Excelitas1003528
      SPCM-NIR-40Excelitas15002410
      SPCM-NIR-41Excelitas10002410
      SPCM-NIR-42Excelitas5002410
      SPCM-NIR-43Excelitas2502410
      SPCM-NIR-44Excelitas1002410
      SPCM-NIR-50Excelitas15002818
      SPCM-NIR-51Excelitas10002818
      SPCM-NIR-52Excelitas5002818
      SPCM-NIR-53Excelitas2502818
      SPCM-NIR-54Excelitas1002818
      SPCM-NIR-60Excelitas15003528
      SPCM-NIR-61Excelitas10003528
      SPCM-NIR-62Excelitas5003528
      SPCM-NIR-63Excelitas2503528
      SPCM-NIR-64Excelitas1003528
      Excelitas SPCM-AQ4C

      SPCM-AQ4C

      Four-channel independent photon counting card that detects single photons over the wavelength range of 400nm to 1075nm.
      Unique silicon avalanche photodiode (SLiK) with a 180μm circular active area and peak photon detection efficiency exceeding 60% at 650nm.
      Each photodiode is thermoelectrically cooled and temperature controlled, ensuring stable performance despite ambient temperature changes.
      Designed with an FC adaptor configuration, compatible with Multi-Mode fiber up to 100μm core diameter.
      Peak count rate greater than 4 million counts per second (Mcps) for short bursts on all four channels and 1.5 Mcps for continuous operation.

        Single Photon Counting ModulesProducerActive area diameter (μm)Photon Detection Efficiency / Maximum rate (%) @ 650 nm c/sDead Time (count rate below 5M/c) (ns)Output pulse width (ns)Max Count Rate before saturation (c/s)
        SPCM-AQ4CExcelitasFibered6050254M
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