High Quantum Efficiency Low Noise Balanced Detector for 600–900 nm

Name: High Quantum Efficiency Low Noise Balanced Detector for 600–900 nm
Brand: Noisy Labs GmbH

Description

The High Quantum Efficiency Low Noise Balanced Detector for 600–900 nm from Noisy Labs is a precision balanced photodetector engineered for ultra-low-noise optical measurements across the visible and near-infrared spectrum. Optimized for wavelengths between 600 nm and 900 nm, this detector combines high-quantum-efficiency photodiodes, excellent common-mode rejection, and low electronic noise to deliver shot-noise-limited performance in demanding scientific and industrial photonics applications.

Designed for high-sensitivity optical detection, the balanced architecture effectively suppresses common-mode laser intensity fluctuations while amplifying differential optical signals. With quantum efficiency exceeding 95%, dark noise clearance up to 20 dB, and a 2 MHz bandwidth, the detector enables accurate measurements of weak optical signals while maintaining outstanding signal-to-noise performance.

Its compact design, standard 50 Ω RF output, customizable high-pass cutoff, RF frequency on-board demodulation options, and wide acceptance angle make it easy to integrate into laboratory instruments, quantum optics experiments, interferometric measurement systems, and OEM photonics equipment. The detector is particularly well suited for applications requiring stable, low-noise balanced detection throughout the 600–900 nm wavelength range.

Specifications

Central Wavelength:	600 – 900 nm
Angle Of Incidence (AOI):	-25 – 25 deg
3dB Bandwidth:	2 MHz
Output Impedance:	50 Ohm
DC Output Voltage:	-5 – 5 V
RF Input Frequency:	0.15 – 20 MHz
RF Input Power (max):	12 dBm
Quantum Efficiency:	>95%
Max. Total Input Power:	8 mW at 775 nm
Active Area Size:	2 x 2 mm
AC High Pass Cutoff:	300 kHz (adjustable upon request)
Dark Noise Clearance (min):	15 dB at 2 MHz

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Features

Optimized for balanced optical detection across the 600–900 nm wavelength range
High quantum efficiency exceeding 95% for excellent photon detection efficiency
Balanced detector architecture minimizes common-mode laser intensity noise
Common-mode noise suppression enables high-sensitivity differential signal measurements
Dark noise clearance up to 20 dB at 2 MHz with 8 mW total optical power
2 MHz bandwidth for precision low-noise optical measurements
Standard 50 Ω RF output for straightforward integration with electronic instrumentation
Wide optical acceptance angle of ±25°
Compact benchtop housing with ±12 V power supplyI
deal for research laboratories, OEM integration, and precision photonics instrumentation

Applications

Balanced homodyne and heterodyne detection
Quantum optics and quantum photonics research
Laser intensity noise measurements
Optical interferometry
Precision optical metrology
Coherent optical communication experiments
Spectroscopy and scientific instrumentation
Optical sensor development
University and research laboratory experiments
OEM photonics and laser systems

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Frequently Asked Questions

What wavelength range is this balanced detector designed for?

This detector is optimized for optical measurements across the 600 nm to 900 nm wavelength range, making it suitable for a wide variety of visible and near-infrared laser sources used in scientific research and photonics applications.

Why use a balanced detector instead of a conventional photodiode?

A balanced detector uses two photodiodes to subtract common-mode optical noise while preserving the desired differential signal. This significantly improves measurement sensitivity by reducing laser intensity noise and enabling shot-noise-limited performance in many applications.

What types of experiments benefit from balanced detection?

Balanced detectors are widely used in homodyne and heterodyne detection, quantum optics, coherent optical communications, interferometry, laser stabilization, spectroscopy, and precision optical metrology where extremely low-noise measurements are required.

Can this detector be integrated into custom optical systems?

Yes. The detector features a compact housing, standard 50 Ω RF output, customizable electronic parameters, and a ±12 V power supply, making it suitable for integration into laboratory instruments, OEM photonics equipment, and custom optical measurement systems.

What are the key advantages of this balanced detector?

The detector combines high quantum efficiency, excellent common-mode noise suppression, low electronic noise, and stable operation in a compact package. These characteristics allow researchers and system designers to perform highly sensitive optical measurements while minimizing technical noise that can limit measurement accuracy.

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