可调谐滤波器
Optical Tunable Filter (可调谐超窄带滤波器)
LLTF系列 Tunable Filter是一款非色散的亚纳米带宽可调谐光学滤波器。值得一提的是，因为采用的拥有专利的体光栅技术，这款可调谐光学滤波器具有惊人的60%的非偏振透过率，这是FTS, Fabry-Perot, 声光（AOTF），液晶（LCTF）等方法所无法企及的。波长调谐通过电脑程序控制，省去了重新调整光路带来的不便。此外，由于TNF系列超窄带宽Notch Filter中的filter是由全玻璃材料制成，所以和传统的Notch Filter比较，它具有更高的损伤阈值及工作寿命。
技术指标：
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Source Type
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Spectral range (nm)
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FWHM(nm)
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Dye Laser
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540 - 800
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<0.3
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Ti:Saphire Laser
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715 - 1000
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<0.3
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800 - 1100
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<0.4
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High Power Supercontinuum source (up to 8 W)
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400 - 1000
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<0.4
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1000 - 2300
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<2
|
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Medium power Supercontinuum source (up to 50 mW)
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400 - 1000
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<0.4
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1000 - 2300
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<2
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Custom possibilities
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Available spectral window
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400 - 2300 nm
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Available bandwidths (FWHM)
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From 0.3 nm to 3 nm depending on wavelength
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Tuning range
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From 260 nm to 1300 nm
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Pointing stability
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< 1 mm lateral displacement (for 1.3 μm spectral range)
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Peak transmission
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Up to 60%
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Wavelength relative resolution
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0.05 nm (for FWHM = 0.3 nm)
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Damage threshold
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> 100 kW/cm2 average power > 5 GW/cm2 peak power @ 1064 nm, 8 ns
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Aperture diameter
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≤ 5 mm
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Dimensions (L x W x H)
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10’’ x 7.5’’ x 9.25’’ (25.4 cm x 19.05 cm x 23.5 cm)
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|
Operating temperature
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10 to 40°C
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Storage temperature
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5 to 50°C
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Software
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included
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Computer connection
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USB 2.0 (compatible 1.1)
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|
Power supply
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100 - 240 V , 50 - 60 Hz
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