-Working wavelength:0.95 μm~1.65 μm;
-Designed for single photon detection applications;
-Internal integrated three-stage Tec cooler;
-62.5/125 μm multimode pigtail;
-Butterfly airtight encapsulated modules.
1.2 MB / pdf
Linear mode parameters
| Characteristic parameters | Test conditions (TC=25±5℃ unless otherwise specified) | Minimal | Greatest | Unit |
| Effective detection surface diameter d | – | 25 | – | mμ |
| Spectral Response Range | – | 950 | 1650 | nm |
| Reverse breakdown voltage V\(_{BR}\) | I\(_{R}\)=10μA, Φe=0 | 60 | 85 | V |
| Responsiveness R\(_{e}\) | Φe=1μW,VR=(V\(_{BR}\)-1)V, λ=1550 nm±50 nm | 8 | – | A/W |
| Dark Current I\(_{D}\) | V\(_{DC}\)=(V\(_{BR}\)-1)V, фe=0 | – | 1 | nA |
| Capacitance C\(_{tot}\) | V\(_{DC}\)=(V\(_{BR}\)-1)V, f=1MHz | – | 0.6 | pF |
| Temperature coefficient of breakdown voltage η | TC=-45～+30℃, \(_{IR}\)=10μA, φe=0 | 0.10 | 0.15 | V/℃ |
Geiger mode parameters
| Characteristic parameters | Test Condition | Minimal | Greatest | Unit |
| Single Photon Detection Efficiency PDE | T\(_{A}\)= -40±5℃, μ=1,fg=1.25 GHz, f\(_{P}\)=625 kHz, DCR≤3.0 kHz, λ=1.55 μm | 20 | – | % |
| Dark Count Rate DCR | T\(_{A}\)=-40±5℃, fg=1.25 GHz. SPDE =20%, λ=1.55μm | – | 3 | kcps |
| Post-Pulse Probability APP (500 ns) | T\(_{A}\)=-40±5℃, μ=1,f\(_{g}\)=1.25 GHz,fp=625 kHz. DCR≤3.0 kHz,SPDE =20%, λ=1.55 μm | – | 1 | % |
| Time Jitter T\(_{J}\) | SPDE=20% | – | 300 | ps |
| Note: λ is the wavelength of incident liht, T\(_{A}\) is the value of test temperature, μ is the average number of photons per pulse, fg is the frequency of gating signal, and f\(_{BR}\) is the frequency of optical pulse signal. | ||||
Voltage(V)
Fig.1 Photocurrent and dark current curves
Fig.2 Temperature coefficient of breakdown voltage
Figure 3 Product form factor
| notation | minimum value | nominal value | maximum value | notation | minimum value | nominal value | maximum value | nominal | minimum | nominal | maximum |
| H1 | 7.4 | 7.45 | 7.5 | L2 | 10 | 13.5 | 30 | L8 | 8.7 | 8.9 | 9.1 |
| H2 | 1.8 | 2 | 2.2 | L3 | 4.05 | 4.25 | 4.45 | L9 | 12.5 | 12.7 | 12.9 |
| H3 | 7.57 | 7.77 | 7.97 | L4 | 3.74 | 3.94 | 4.14 | L10 | 38.2 | 38.4 | 38.6 |
| H4 | 10.5 | 10.7 | 10.9 | L5 | 21.8 | 22 | 22.2 | ф1 | 3 | 3.5 | 6.6 |
| L0 | 1000 | – | – | L6 | 25.8 | 26 | 26.2 | ф2 | 0.4 | 0.5 | 0.6 |
| L1 | 17.3 | 17.5 | 17.7 | L7 | – | 2.54 | – | ф3 | 2.2 | 2.4 | 2.6 |
Output Port Definitions
Fig.4 Pin arrangement and numbering (top view)
| Outlet Number | Name(symbol) | Outlet Numbering | Name |
| 1 | Diode N-pole (APD_N) | 5 | Chiller Negative(TEC-) |
| 2 | Shell Ground (GND) | 6 | Thermistor (R_th) |
| 3 | Diode P-pole (APD_P) | 7 | Thermistor (R_th) |
| 4 | Signal sampling terminal | 8 | Chiller Positive(TEC+) |
| P+50Ω(OUT) | |||
| TEC\NTC Electrical Parameters NTC (Temperature Sensitive Resistor):R\(_{T}\)=10kΩ@25℃, β=3450,5%. TEC (temperature difference cooler):I\(_{MAX}\)=0.8A,V\(_{MAX}\)=11.9V,T\(_{H<AX}\)=200℃ . | |||