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Description

The PE3B-IN-D0 is an advanced photodiode detector designed for precision laser energy measurement, capable of measuring laser energy up to 245 pJ. With its exceptional measurement capabilities and NIST-traceable calibration, this laser photodiode is an essential tool for laser research and applications.

Silicon photodiodes are completely blind to wavelengths longer than 1100 nm. However, the exact telecom, medical, and fiber-optic wavelengths used worldwide operate just past that threshold (e.g., 1310 nm and 1550 nm). The unique molecular bandgap of an InGaAs photodetector allows it to capture light from roughly 900 nm to 1700 nm.

PE3B-IN-D0 Photodiode Detector

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Specifications

Max Measurable Energy: 2.45E-7 mJ
Max Repetition Rate: 1000 Hz
Effective Aperture: 3 mm
Spectral Range: 0.9 – 1.7 um
Typical Rise Time: 12 µs
Typical Energy Sensitivity: 10 GV/J
Noise Equivalent Energy: 30 fJ
Maximum Pulse Width: 10 μs
Energy Calibration Uncertainty: ±4 %
Maximum Power: 1.18 μW
Absorber: InGaAs
Dimensions: 38.1Ø x 27.4D mm 
Weight: 0.09 kg

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Features

  • Spectral Range: 900 - 1700 nm
  • Typical Rise Time: 12 µs
  • Maximum Repetition Frequency: 1000 Hz
  • Typical Energy Sensitivity: 10 GV/J
  • Maximum Measurable Energy: 245 pJ
  • Noise Equivalent Energy: 30 fJ
  • Maximum Pulse Width: 10 μs
  • Energy Calibration Uncertainty: ±4% (1310 nm)

Applications

  • High-precision laser energy measurement
  • Laser system characterization
  • Laser research and development
  • Optical power monitoring
  • Quality control in laser manufacturing

Frequently Asked Questions

What is the Gentec-EO PE3B-IN-D0 photodiode detector used for?
The Gentec-EO PE3B-IN-D0 is a high-sensitivity InGaAs photodiode detector designed for ultra‑low energy laser pulse measurements up to 245 pJ. It is optimized for near‑infrared (NIR) lasers in the 900–1700 nm spectral range and is typically used in R&D labs, telecom component testing, fiber laser development, eye‑safe LIDAR sources, and other applications requiring precise, low‑noise pulse energy measurements at repetition rates up to 1 kHz.
What are the key specifications of the PE3B-IN-D0 laser energy detector?
Key specifications of the PE3B-IN-D0 include: - Spectral range: 900–1700 nm (InGaAs absorber) - Maximum measurable energy: 245 pJ per pulse at 1310 nm - Noise equivalent energy (NEE): 30 fJ (nominal, environment‑dependent) - Typical energy sensitivity: 10 GV/J - Maximum average power: 1.18 µW - Maximum pulse width: 10 µs - Typical rise time: 12 µs - Maximum repetition frequency: 1000 Hz - Aperture diameter: 3 mm - Calibration uncertainty: ±4% at 1310 nm, NIST‑traceable
Which monitors and accessories are compatible with the PE3B-IN-D0?
The PE3B-IN-D0 uses Gentec-EO’s smart detector interface that stores all calibration data and is directly compatible with Gentec-EO monitors such as M-LINK, MAESTRO, and S-LINK. These monitors automatically recognize the detector and apply the correct calibration factors. For stable positioning, the detector is compatible with the STAND-D-233 mount. This makes it easy to integrate into optical benches alongside similar Gentec-EO PE-B-Si and PE5B-GE photodiode detectors.
How does the PE3B-IN-D0 compare to other Gentec-EO PE-B series photodiode detectors?
Within the Gentec-EO PE-B family, the PE3B-IN-D0 is the InGaAs version optimized for 900–1700 nm. In comparison: - PE-B-Si models (3 mm and 10 mm) use silicon sensors and cover 0.21–1.08 µm, with even lower noise on the PE3B-Si for visible/UV applications. - PE5B-GE uses a 5 mm germanium sensor for 0.8–1.65 µm. The PE3B-IN-D0 offers the best performance in the 1310–1550 nm telecom/NIR range, with pJ‑level energy capacity and fJ‑level noise, making it more suitable than Si or Ge versions for low‑energy fiber‑based or eye‑safe NIR sources.
What is the maximum laser energy and power the PE3B-IN-D0 can safely measure?
At the calibration wavelength of 1310 nm, the PE3B-IN-D0 can measure up to 245 pJ per pulse with a maximum average power of 1.18 µW and a maximum pulse width of 10 µs at repetition rates up to 1 kHz. These ratings are wavelength‑dependent, so the maximum power and energy may vary across the 900–1700 nm range. Always refer to the damage threshold and power‑versus‑wavelength curves in the Gentec-EO user manual to ensure your laser parameters remain within the specified safe operating limits.
How accurate is the PE3B-IN-D0 and is it NIST-traceable?
The PE3B-IN-D0 is factory‑calibrated and NIST‑traceable at 1310 nm, which is a common wavelength for telecom and fiber laser applications. The typical energy calibration uncertainty at 1310 nm is ±4%. At other wavelengths within the 900–1700 nm spectral range, typical calibrated values are used, and the smart interface stores all coefficients so compatible Gentec‑EO monitors can automatically apply the appropriate corrections for accurate laser energy readings.
What do the different PE3B-IN model variants (PE3B-IN-D0, PE3B-IN-INT-D0, PE3B-IN-INE-D0, PE3B-IN-IDR-D0) mean?
All PE3B-IN variants use the same 3 mm InGaAs sensor and basic optical specifications, but differ in their connector styles and integration options. The base PE3B-IN-D0 is a standard head for use with Gentec-EO monitors via the smart interface. Variants such as PE3B-IN-INT-D0, PE3B-IN-INE-D0, and PE3B-IN-IDR-D0 are tailored for specific OEM or rack‑mount configurations, different interface types, or extended integration requirements. For detailed differences and connector pinouts, consult the Gentec-EO datasheet or contact Gentec-EO technical support.

Got more questions? Use the inquiry form to ask the supplier directly.

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