818系列-光電二極管功率探測器818系列-深圳市華智騰光電科技有限公司

NIST 可追蹤 818 系列光電二極管傳感器可通過(guò)可拆卸衰減器在較寬的功率范圍內進(jìn)行精確的功率測量。

NIST 可追蹤校準具有比同類(lèi)產(chǎn)品具有更好的不確定度
10 mm 通光孔徑衰減器設計已改進(jìn)
可拆卸校準模塊
波長(cháng)范圍為 200-1800 nm
可移動(dòng)校準 OD3 衰減器

對比	型號	光譜范圍	可測量功率1	最小可測量功率2
	818-UV/DB 紫外探測器，200-1100 nm，DB15 校準模塊	200 - 1100 nm	20 pW	1500 mW
	818-SL/DB 硅探測器，400-1100 nm，DB15 校準模塊	400 - 1100 nm	20 pW	2000 mW
	818-IR/DB 鍺探測器，780-1800 nm，DB15 校準模塊	780 - 1800 nm	5 nW	2000 mW
	818-IG/DB InGaAs 探測器，800-1650 nm，DB15 校準模塊	800 - 1650 nm	20 pW	2000 mW

注釋:

When used with 1936-R or 2936-R benchtop optical power meter.
When used with a 1830-R, 1918-R, 1936-R, or 2936-R benchtop optical power meter.

產(chǎn)品規格

型號
型號	818-UV/DB	818-SL/DB	818-IR/DB	818-IG/DB
感光尺寸	?10 mm	?11.3 mm	?3 mm	?3 mm
光譜范圍	200 - 1100 nm	400 - 1100 nm	780 - 1800 nm	800 - 1650 nm
可測量功率	1500 mW	2000 mW	2000 mW	2000 mW
可測量功率（無(wú)衰減器）	5 mW (200 - 400 nm); 2.5 mW (400 - 600 nm, >1050 nm) , 1.5 mW (600 - 1050 nm)	4 mW with 1830-R and 1936-R, 2.5 mW with 843-R, 1919-R, and 841-PE-USB	10 mW (1918-R, 1936-R/2936-R), 1.3 mW (843-R, 1919-R, 841-PE-USB)	10 mW (1830-R, 1918-R, 1936-R/2936-R), 1.3 mW (843-R, 1919-R, 841-PE-USB)
功率密度	30 W/cm2	30 W/cm2	30 W/cm2	30 W/cm2
功率密度（無(wú)衰減器）	0.2 W/cm2	3 W/cm2	3 W/cm2	3 W/cm2
脈沖能量（無(wú)衰減器）	0.4 µJ	60 nJ	60 nJ	60 nJ
校準不確定度（帶衰減器）	±8% @ 200-219nm ±2% @ 220-349nm ±1% @ 350-949nm ±4% @ 950-1100nm	±1% @ 400-940nm ±4% @ 941-1100nm	±5% @ 780-910nm ±2% @ 911-1700nm ±4% @ 1701-1800 nm	±5% @ 800-900nm ±2% @ 901-1650nm
校準不確定度（無(wú)衰減器）	±4% @ 200-219nm ±2% @ 220-349nm ±1% @ 350-949nm ±4% @ 950-1100 nm	±1% @ 400-940nm ±4% @ 941-1100 nm	±2% @ 780-910nm ±2% @ 911-1700nm ±4%@1701-1800 nm	±2% @ 800-900 nm ±2% @ 901-1650 nm
衰減器	OD3, Threaded	OD3, Threaded	OD3, Threaded	OD3, Threaded
線(xiàn)性度	±0.5 %	±0.5 %	±0.5 %	±0.5 %
均勻性	±2 % over ?2 mm with attenuator, ±2 % over ?4 mm without attenuator	±2 %	±2 %	±2 % @ 1550 nm
上升時(shí)間	3 µs	≤2 µs	≤2 µs	≤2 µs
端口類(lèi)型	DB15	DB15	DB15	DB15
通光孔徑	10.3 mm	10.3 mm	10.3 mm	10.3 mm
探測器材料	UV Enhanced Silicon	Silicon	Germanium	Indium Gallium Arsenide
探測器輸入	Free Space	Free Space	Free Space	Free Space
Calibration Module	DB15 removable	DB15 removable	DB15 removable	DB15 removable
最小可測量功率	20 pW	20 pW	5 nW	20 pW
電纜長(cháng)度	1.5 m	1.5 m	1.5 m	1.5 m
有衰減器時(shí)的脈沖能量	400 µJ	60 µJ	60 µJ	60 uJ
探測器類(lèi)型	Post Mounted	Post Mounted	Germanium Sensor	Post Mounted

特征

Excellent Photodiode Linearity		Responsivity Variation over Temperature

全不銹鋼結構		全不銹鋼結構
These photodiodes show excellent linearity over a large dynamic range. This is ideal for use in applications that require high accuracy measurements down to the pW level, especially when combined with a high sensitivity power meter that can accommodate the large dynamic range of the optical signal.		A natural characteristic of a photodiode is for the its optical response to change as the temperature changes near the bandgap of semiconductor materials. Newport’s 918D series sensors feature a thermocouple near the photodiode, which allows certain Newport meters to read the temperature and automatically adjust the responsivity, ensuring the most accurate measurements.

Factors that Affect Maximum Measurable Power
The maximum measurable power of photodiode sensors is dependent on several factors such as the wavelength of incoming light, photodiode current output saturation, temperature, use of an attenuator and a power meter's maximum current input value. Newport provides maximum power specifications based on the power meter models, with and without an attenuator, and wavelength-dependent maximum power level. With these factors affecting measurable power in mind, choosing the proper detector for your application is critical.

最嚴格的校準不確定性 918D 系列包括一個(gè)采用 NIST 可追溯標準，利用 Newport 光學(xué)探頭校準設施維護的高精度設備完成的全光譜響應校準。嚴格的校準設備和過(guò)程控制可實(shí)現業(yè)內的校準不確定性。每個(gè)探頭都附有校準數據，這些數據以電子形式存儲在探測器的 EEPROM 中。每個(gè)探頭都附有校準證書(shū)以及衰減器模式和無(wú)衰減器模式下的實(shí)際校準曲線(xiàn)和數據。為了保持精度、保證性能，Newport 建議每年對光電二極管探頭進(jìn)行校準。
		Detector calibration system block diagram.

	寬動(dòng)態(tài)范圍（具有內置衰減器）的 OD3 衰減技術(shù)將我們探測器的校準光學(xué)動(dòng)態(tài)范圍擴展了三個(gè)數量級。我們的衰減器設計提供高損傷閾值和光譜平坦度。通過(guò)與 Newport 正在使用的光電二極管相關(guān)聯(lián)的低 NEP，實(shí)現了更寬的動(dòng)態(tài)范圍。對于小于 1 mW 的輸入功率，我們建議將衰減器置于 OFF 位置（對于 918D-UV-OD3R 在 200 - 400 nm 之間則為 0.1 mW），使信噪比達到。該衰減器的通光孔徑為 10.3mm。

Removable OD3 Attenuator For less than 1 mW input power (or 0.1 mW for 818-UV/DB between 200-400 nm), removing the OD3 attenuator by unscrewing it from the detector head is recommended to maximize the signal-to-noise ratio.
		全不銹鋼結構

	關(guān)于探測器接頭的注意事項 818 系列探頭帶有可拆卸校準模塊的 BNC 連接器。/DB 后綴表示 DB15 樣式校準模塊，該模塊與 Newport 的當前功率計直接兼容。帶有 /CM 后綴的型號（僅在購買(mǎi)時(shí)可離線(xiàn)使用）附帶傳統的 8 針迷你 DIN 模塊。BNC 連接器型號 818-xx 不再可用。購買(mǎi) 818-xx/DB 時(shí)，只需簡(jiǎn)單拆除校準模塊。

Additional Functionality with BNC Connector The BNC connector extends the functionality of the 818 Series photodiode sensors. It enables direct connection to an ammeter or lock-in amplifier. It also allows the detector output to be viewed on an oscilloscope after first connecting it to a current-to-voltage preamplifier, such as Newport's model 70710. Furthermore, the cable length can be extended by connecting another BNC cable.
		全不銹鋼結構

Adapters for Fiber-Optic Applications
These photodiode sensors can be converted to measure optical power from connectorized or bare optical fibers. Newport offers a comprehensive set of screw-in fiber-optic adapters to match a variety of connector types. Our bare fiber holder and adapter mountare designed together to hold 250-µm bare fibers without damaging the fiber.


全不銹鋼結構		全不銹鋼結構