Four Quadrant Photodetector

SKU: ISMO-QPD-2
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47,000.0049,000.00

The ISMO-QPD-SI-V2 is a high-gain four-quadrant photodetector available in two variants. The first provides direct access to each quadrant’s output, ideal for beam alignment and particle trapping fine-tuning. The second variant outputs the sum and difference signals, perfect for active beam stabilization and normalization. Both cater to advanced applications in optical tweezers and beam alignment.

  • Description
  • Additional information

Description

 

Product Detailed Description:

S.no Item ISMO-QPD-SI-V2
1 Central Wavelength 320 nm to 1100 nm
2 Peak sensitivity wavelength 962 nm
3 Photosensitivity at λ = λp 0.72 A/W
4 Dark current  0.3 nA
5 Noise equivalent power λ = λp < 2x 10-14 W/√Hz
6 Gap between elements < 32 µm
7 Max power per detector < 5 mW / cm^3.
8 Bandwidth (-3 dB) > 180 KHz
9 Rise/Fall time < 2.5 ns
10 Gain 10 K V/A or 100 K V/A
11 Active area 3.2 x 3.2 mm

(Optional: 5×5 mm^2 and 10×10 mm^2)

12 Input voltage 12 V
13 Output voltage swing 0 to10 V 
14 Mounting hole M4
15 Operating Temperature 20 °C to  60 °C
16 Dimension (L x B x H) mm 70 mm x 68 mm x23 mm
17 Enclosure material Aluminum / PLA

Additional information

Weight 0.5 kg
Dimensions 70 × 68 × 23 cm
Gain

10k V/A, 100K V/A

Enclosure Material

PLA, Aluminum

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