SPCM-NIR
NIR-Optimized Single Photon Counting Module
Key Features
· Peak photon detection efficiency (PDE) @ 780 nm: 70% typical
· Active area: 180 µm
· Gated output
· Single +5 V supply
· RoHS-compliant
· Linearity over high count rate
Applications
· LIDAR
· Quantum Cryptography
· Photon correlation spectroscopy
· Astronomical observation
· Optical range finding
· Adaptive optics
· Ultra-sensitive fluorescence
· Particle sizing
· Microscopy and imaging
Excelitas Technologies’ SPCM-NIR is a Single Photon Counting Module specifically selected and performance-optimized for the near infra-red wavelength spectrum.
The SPCM-NIR uses a specially selected SLiK silicon avalanche photodiode with peak single photon detection efficiency typically better than 73% while maintaining uniformity over a 180 µm diameter active area. This module achieves enhanced red and NIR sensitivity while maintaining such other performance parameters of the standard SPCM-AQRH, such as outstanding uniformity, overload protection, temperature stability and linearity
This NIR spectrum enhanced device is designed to support long range LIDAR, quantum communication and microscopy, as well as many other applications.
Excelitas’ series of photon counting modules are designed and built to be fully compliant with the European Union Directive 2011/65/EU – Restriction of Hazardous Substances in Electrical and Electronic equipment (RoHS).
Table 1. Absolute Maximum Ratings
Supply voltage (1)
5.5 V
Maximum count rate
Maximum count rate can be sustained if case temperature is maintained within limit specified limits
Peak light intensity
Maximum 104 photons per pulse, pulse width < 1 ns
Case temperature (3)
-20°C/+70°C storage, +5°C /+70°C operating
Table 2. Specifications of SPCM-NIR, @ 22 ºC, all models; unless otherwise indicated (1)
Parameter
Min
Typ
Max
Unit
Active area (diameter) at minimum PDE
170
180
µm
Photon detection efficiency (PDE)
(without FC adaptor) at (2):
780 nm
800 nm
850 nm
900 nm
64
62
54
41
70
68
58
45
%
%
%
%
Dark Count SPCM-NIR-10
SPCM-NIR-11
SPCM-NIR-12
SPCM-NIR-13
SPCM-NIR-14
1500
1000
500
250
100
Counts / second
Single photon timing resolution (at 825 nm)(3)
350
ps
Dead time (count rate below 5M/c)
Other values can be factory set
20
40
ns
Output count rate before saturation
12
40
Mc/s
Linearity correction factor at 200 Kc/s
1 Mc/s
5 Mc/s
10 Mc/s
20 Mc/s
25 Mc/s
1
1.02
1.16
1.40
2.35
3.32
Afterpulsing probability
1.0
3.0
%
(1) For other performance characteristics, refer to Operating Instructions, product notes and specifications listed on the standard SPCM-AQRH data sheet.
(2) Minimum photon detection efficiency (PDE) measured and recorded at specific wavelength, refer to Table 3, Ordering Guide.
(3) For timing resolution enhanced module, consult Product Brief for SPCM-AQRH-TR series.
Table 3. Ordering Guide
Figure 1. Typical Photon Detection Efficiency (PDE) vs. Wavelength
描述 [描述] 在780 nm处的峰值光子探测效率(PDE):70%(典型)<br />感光面积:180 µm<br />可门控输出信号