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Buying Balanced Photodetectors

Top-level product category: icon detectors and measurements

More general product categories: photodetectors

Related product category: photodiodes

Balanced photodetectors are suitable for sensitively measuring differences in optical powers between two inputs while largely suppressing common noise. They are used in applications such as sensitive absorption measurements, optical heterodyne detection, and quantum optics experiments.

Making Good Purchase Decisions

As the most professional photonics purchasing portal, RP Photonics helps you to not only to find all relevant suppliers (not limited to our advertisers), but also to make good purchasing decisions.

NEW: Structured Decision Process

Purchasing involves a lot of responsibility. We recommend that you apply best practice by using the following structured process: Go through the following expandable sections, complete the form and finally come to a purchase decision. You can then print that to a PDF for documenting the process.

Our article on best practices for purchasing and another one explaining this tool give you valuable insights.

1. Understand the technical background

It is important to sufficiently understand the technology before buying.

Use the comprehensive learning resources of RP Photonics:

encyclopedia article balanced photodetection

If you need personal help, contact RP Photonics to get technical consultancy.

2. Define your requirements

It is essential to fully understand and clearly define your requirements before you buy.

We recommend that you develop a list of clear specifications according to your specific needs, against which you can later check the suitability of found product offers:

To help you, we have already listed some aspects we recommend you consider when buying balanced photodetectors. Of course, there may be other aspects that are relevant to your specific case.

This list is for your own preparation, and can later (possibly in modified form) be used for quotation requests to suppliers.

Otherwise, you will need to talk to your technical colleagues.

If you cannot sufficiently clarify your requirements, you may want to get technical consultancy from RP Photonics.

You find these buttons in the supplier list below or under "3. Find suitable suppliers".

3. Find suitable suppliers

We suggest three steps:

  • Below, you can find our list of suppliers for balanced photodetectors. Use the checkboxes to mark possibly suitable suppliers.
  • The selected suppliers will appear below this list, along with your list of specifications. You can then indicate which specifications they meet according to your research. (You should finalize your specifications before doing this.)
  • Based on the results, you can finally choose a supplier that is hopefully a good enough fit.

Selected suppliers:

(none so far)

Decision

The most suitable supplier you found:

Comments, e.g. reasons for your choice, or things which still need to be checked:

Suppliers for Balanced Photodetectors

12 suppliers for balanced photodetectors are listed in the RP Photonics Buyer's Guide, out of which 3 present their product descriptions. Both manufacturers and distributors can be registered.

Suppliers with Advertising Package

presenting their product descriptions

Noisy Labs GmbH
Luruper Hauptstrasse 1
22547 Hamburg
Germany
Profile page  Website  

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth A1.324)!

balanced photodetectors

Our balanced detectors are engineered for quantum optics applications with low electronic noise and high quantum efficiencies. The on-board demodulation circuit offers the possibility to generate error signals and implement locking loops for the experiment or application. Available standard wavelengths include 1064 nm and 1550 nm. Other wavelengths and fiber coupling are possible upon request. Visit our website to learn more and see how our technology can support your research.

Product-specific web page

Lasers, Optics, Electronics. Made in Germany.

ALPHALAS GmbH
Bertha-von-Suttner-Str. 5
37085 Göttingen
Germany
Profile page  Website  
balanced photodetectors

ALPHALAS offers balanced photodetectors with bandwidths from DC up to 10 GHz and wavelength ranges from 170 nm to 2600 nm. Both free-space and fiber-coupled models are available.

Product-specific web page

Sophisticated Tools for Signal Recovery

FEMTO Messtechnik GmbH
Klosterstraße 64
10179 Berlin
Germany
Profile page  Website  

See us at LASER World of Photonics 2025 in Munich, June 24–27 (hall A3, booth 538) and LASER World of Photonics 2025 in Munich, June 24–27 (booth A3.538)!

balanced photodetectors

FEMTO's low-noise balanced photoreceivers of the HBPR series enable the differential measurement of optical signals with wavelengths from 320 nm to 1700 nm and bandwidths up to 500 MHz. The optical inputs are optionally free space or fiber-coupled and Si or InGaAs. The HBPR series is characterized by a very low input noise (NEP) down to 3.7 pW/√Hz and a high common mode rejection (CMRR) of up to 55 dB. The output coupling is switchable (AC/DC), the gain can be set in two stages and the bandwidth can be limited to 20 MHz. Two monitor outputs with 10 MHz bandwidth enable fast, separate acquisition of the individual input signals. HBPR photoreceivers are ideally suited for highly sensitive and precise acquisition of laser pulses, even with high repetition rates and rapidly changing signal shapes. Customized versions are available upon request.

Product-specific web page

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Other Suppliers

Beijing Keyang Photonics Co. Ltd.
China
Profile page  Website  
Beijing Rofea Optoelectronics Co., Ltd.
China
Profile page  Website  
HC Optical Science and Tech
China
Profile page  Website  
Insight Photonic Solutions, Inc.
United States
Koheron
France
Laser Components GmbH
Germany
Profile page  Website  
Newport Corporation
United States
Wieserlabs UG (haftungsbeschränkt)
Germany
Profile page  Website  
Xiamen Fengxing Optoelectro-tek Co., Ltd.
China
Profile page  Website  

If any displayed information is incorrect (e.g., a listed supplier does not offer such products) or legally problematic, please notify RP Photonics so that the problem can be solved.



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