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超导纳米线探测器
产品介绍:
超导纳米线单光子探测器(SNSPD)利用超导材料对红外光子的响应,产生输出电压脉冲的特点,进行红外弱光信号的探测。响应波段覆盖780nm至1600nm,具有高的探测效率和很低的暗噪声。IDQ提供的超导纳米线单光子探测器系统包括控制电子学,制冷单元及相关软件,提供“Turnkey”整体解决方案,可在量子光学、量子计算、激光雷达和激光通信等领域中应用。
产品特性:
■ 探测波段覆盖780nm~1600nm
■ 量子效率高达90%
■ 短恢复时间及无闩锁
■ 暗记数 < 1Hz
■ 探测时间低抖动低至20ps
技术参数:
Detectors |
|
System detection efciency |
≥ 85% |
Optimisaton Wavelengths |
from 780 to 1625 nm |
Broadband detection efficiency |
> 85% over min 100 nm |
Dark count rate (a,b) |
10 to 100 Hz |
Recovery Time (a,c) |
from 30 to 60 ns |
Maximum detection rate (a) |
20 to 50 MHz |
Jitter (FWHM) (b) |
20 to 40 ps |
Output pulse width, voltage |
> 5 ns, > 100 mV |
Design working temperature (d) |
0.8 K |
Detector package dimensions |
13 x 20 x 25 mm |
Fibre type (a) |
Singlemode fbre |
Cryostat |
|
Optical and coaxial channels |
1-8 (upon request) |
Base temperature |
0.8 K |
Minimum runtime at 0.8 K (e) |
24 to 100 hours, configurable |
Temperature stability |
0.005 K |
Cooldown time |
12 hours |
Compressor Type |
Air or water-cooled |
Flexlines length |
3 m (upon request) |
Dimensions |
- |
- Cryostat |
53 x 30 x 30 cm |
- Compressor (air-cooled) |
50 x 40 x 50 cm |
a. Wavelength dependant, call for details.
b: Lower values available upon request.
c: Time for the efficiency to recover 50% of the maximum efficiency after a detection.
d: The detectors can be operated at 2.5 K but the specifications are impacted. Call for details.
e: Programmed 2 hours of automatic recycling between runtime periods at 0.8K.
测试数据:
波长-探测效率-暗记数关系
低时间抖动
快速恢复特性