Redwave Labs Time Tagger Q400是一款PCIe?長(zhǎng)度的單光子計(jì)數(shù)卡，可在x64 Linux計(jì)算機(jī)中工作。它提供四通道計(jì)數(shù)輸入，以及第五個(gè)通道作為幀或者同步輸入。外部時(shí)鐘可由10MHz單端或100MHz差分信號(hào)提供。計(jì)數(shù)卡還提供了一個(gè)額外的輸入來(lái)選通計(jì)數(shù)。計(jì)數(shù)通過(guò)PCIe總線返回到主系統(tǒng)內(nèi)存，并可通過(guò)API訪問(wèn)。
參數(shù)特性
| Features/主要特征 | Time Tagger Q400 provides timing resolution to 125ps. /最小時(shí)間寬度（分辨率）125ps |
| Applications/主要應(yīng)用 | Photon Timing, QKD, Quantum computing, single-photon spectroscopy /光子計(jì)時(shí)、量子力學(xué)、量子計(jì)算、單光子光譜學(xué) |
| Single Photon Detection Probability單光子探測(cè)效率 | At 650nm | 70% | |
| At 800nm | 55% | ||
| Dark Count Rate暗計(jì)數(shù)率 | 25 @ -20C, typical | ||
| Deadtime死時(shí)間 | 40 ns | ||
| Output pulse輸出脈沖寬度 | 40 ns | ||
| Connectors連接 | Power | Molex 2 PIN | |
| Output | SMA | ||
| USB | USB TYPEB | ||
| Timing Gate | SMA | ||
| Dimensions (WxHxD)尺寸 | 120 x 92 x 30 mm | ||
| Weight重量 | 350 g | ||
| Storage Temp儲(chǔ)存溫度 | -55 to 100 C | ||
| Operating Temp工作溫度 | -40 to 85 C | ||
| Single Photon Detection Probability單光子探測(cè)效率 | At 650nm | 70% | |
| At 800nm | 55% | ||
| Dark Count Rate暗計(jì)數(shù)率 | 25 @ -20C, typical | ||
| Deadtime死時(shí)間 | 40 ns | ||
| Output pulse輸出脈沖寬度 | 40 ns | ||
| Connectors連接 | Power | Molex 2 PIN | |
| Output | SMA | ||
| USB | USB TYPEB | ||
| Timing Gate | SMA | ||
| Dimensions (WxHxD)尺寸 | 120 x 92 x 30 mm | ||
| Weight重量 | 350 g | ||
| Storage Temp儲(chǔ)存溫度 | -55 to 100 C | ||
| Operating Temp工作溫度 | -40 to 85 C | ||
板卡規(guī)格尺寸
| Dimensions (WxHxD)/尺寸 | 248 x 111 x 33 mm |
| Weight/重量 | 300 g |
| Storage Temp/儲(chǔ)存溫度 | -20 to 85 C |
| Operating Temp/工作溫度 | -20 to 60 C |