Within the scope of light detection, working with quantum states of light, such as squeezed states, presents unique and difficult challenges. For this application, low electronic noise and high quantum efficiency are critical. The Quantum Components line of quantum optimized photodetectors are designed specifically to meet these challenges, and are ideal for implementing quantum measurements such as:
The detectors on this page offer the lowest noise equivalent power and highest quantum efficiency of any commercially available detectors, at a highly competitive price.
The first step when ordering a photodetector is selecting the photodiode(s). The choice is usally made based on quantum efficiency. The figure on the right shows our wide selection of standard PIN photodiodes. These standard diodes offer a great balance between cost effectiveness and high quantum efficiency, providing a QE > 92 % over the entire visible and near infrared optical spectrum which allows for more than 10 dB of squeezing to be measured. We recommend using the tool below to select one of our standard photodiodes. Note that custom photodiodes which are optimized for even higher quantum efficiencies can be provided upon request -- these require a quote.
Use this tool to identify which photodiode offers the highest quantum efficiency at your wavelength of interest.
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output voltage range | ±5 | V | 50 Ohm load |
| Output impedance | 50 | Ohms |
Once a photodiode is selected, we will integrate these into one of our detectors. The table below gives the performance specifications of our balanced transimpedance amplifier.
| TIA Model | Single PD or Balanced | Gain [kΩ] | Bandwidth [MHz] | Minimum Noise [pA/rtHz] | Noise Flatband | Price [USD] |
|---|---|---|---|---|---|---|
| PD-B-1kΩ | Balanced | 1 | 1200 | 6.0 | 10kHz-900MHz | 3000 |
| PD-B-10kΩ | Balanced | 10 | 600 | 2.2 | 1kHz-200MHz | 3000 |
| PD-B-100kΩ | Balanced | 100 | 100 | 0.7 | 300Hz-60MHz | 3000 |
| PD-B-1MΩ | Balanced | 1000 | 12 | 0.2 | 80Hz-6MHz | 3000 |
| PD-S-1kΩ | Single PD | 1 | 1200 | 6.0 | 10kHz-900MHz | 2700 |
| PD-S-10kΩ | Single PD | 10 | 600 | 2.2 | 1kHz-200MHz | 2700 |
| PD-S-100kΩ | Single PD | 100 | 100 | 0.7 | 300Hz-60MHz | 2700 |
| PD-S-1MΩ | Single PD | 1000 | 12 | 0.2 | 80Hz-6MHz | 2700 |
Note: Most photodiodes do not add any cost to the final price, with the exceptions being: PIN1900, PIN4600, PIN1060, and PIN1550. For these diodes, a quote is required.