SPCM-AQRH-XX-TR
Timing Resolution Optimized Single Photon Counting Module
Key Features
· Timing resolution <250ps
· Peak photon detection efficiency (PDE) @ 650 nm: 75% typical
· Active area: 180 µm
· Gated output
· Single +5 V supply
· RoHS-compliant
· Linearity over high count rate
Applications
· Time correlated single photon counting
· Fluorescence lifetime imaging microscopy
· Ultra-sensitive fluorescence lifetime measurements
· Quantum Cryptography
· Photon correlation spectroscopy
· Optical range finding
· Particle sizing
· Adaptive optics
Excelitas Technologies’ SPCM-AQRH-XX-TR is a Single Photon Counting Module of the most recent product generation, specifically selected and performance- optimized for timing resolution.The SPCM-AQRH-XX-TR uses a specially selected SLiK silicon avalanche photodiode with timing resolution better than 250 ps while maintaining peak photon detection efficiency (PDE) of more than 75% at 650 nm over a 180 µm diameter active area. While some performance parameters like dead-time and dynamic range are traded off against the optimized timing performance, other performance parameters of the standard SPCM-AQRH, such as outstanding uniformity, overload protection, temperature stability and linearity, are still part of this new timing optimized module.
This fast timing enhanced device is designed to support applications in time correlated single photon counting (TCSPC), fluorescence lifetime measurements and fluorescence lifetime imaging microscopy (FLIM).
Excelitas’ series of photon counting modules are designed and built to be fully compliant with the European Union Directive 2002/95EEC – Restriction of the use of certain 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
104 photons per pulse and pulse width < 1 ns
Case temperature (3)
-20°C/+70°C storage, +5°C /+70°C operating
Table 2. Specifications of SPCM-AQRH-XX-TR, @ 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)(2) at:
650 nm
830 nm
75
50
%
%
Dark Count SPCM-AQRH-10
SPCM-AQRH-11
SPCM-AQRH-12
SPCM-AQRH-13
SPCM-AQRH-14
1500
1000
500
250
100
Counts / second
Single photon timing resolution (at 825 nm)(2,3)
Contact factory for optimized timing below
200 ps and at other wavelengths
225
250
ps
Dead time (count rate below 5M/c)
Other values can be factory set
60
ns
Output count rate before saturation
12
Mc/s
Linearity correction factor at 200 Kc/s
1 Mc/s
5 Mc/s
10 Mc/s
1
1.02
1.16
1.40
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) See Figure 1 for timing resolution vs. photon detection efficiency curve.
(3) Timing resolution is measured using a 10 um diameter light spot, at 825 nm, case temperature at 22°C. For timing resolution requirements measured with a larger spot size, or at different wavelength, please contact Excelitas.
Table 3. SPCM Ordering Guide
Figure 1: Typical timing resolution & PDE relative to position of detector chip @ 650 nm
描述 [描述] 时间分辨率<250ps<br />在650 nm处的峰值光子探测效率(PDE):75%(典型)<br />感光面积:180 µm<br />可门控输出信号