Spectrometer Model: ASP-IR Broad IR spectral range * Compact * Resolution 0.35 nm * USB interface *  Model ASP-IRF has an FC fiber input * Application - Laser wavelength control - Laser emission analysis  View .pdf Print version

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   The ASP-IR boasts a scanning mechanism that allows measurements in IR range withount using an expensive CCD array. This makes the spectrometer very attractive in terms of price in the market of IR spectrometers. The ASP-IR has impressive characteristics that provide precise laser emission analysis along the whole registered range with resolution 0.35 nm.
   The ASP-IRF has a special fiber input, allowing measurement of either free-space or fiber signals without any realignment.
    Wavelength range up to 3800 nm is also available upon custom requests. 

		ASP-IR	ASP-IRS	ASP-IRHS
	Optical scheme	Cherny-Turner
	Spectral range, nm	800-1680	500-1700	1200-2600(1)
	Grating, grooves/mm	600		400
	Scanning speed, nm/s	up to 350		up to 500
	Spectral resolution, nm (models with input slit)	0.35		0.6
	Spectral resolution, nm (models with fiber input)	0.6		0.8(1)
	Focal length, mm	150
	Relative aperture	1:13
	Photodetector	InGaAs photodiode
	Input slit, um	15
	Output slit, um	20
	Detector active area height, mm	0.5	1	0.5
	Source pulse repetition rate, kHz	>30	any(2)	any(2)
	Sensitivity threshold*(2…4), nW [pJ]	90	2 [0.3]	90 [5]
	Relative dynamic range* (2,3)	103	3 [1.6] x105	2.5 [0.4] x105
	ADC	12 bit, 4096 counts	16 bit, 65536 counts	16 bit, 65536 counts
	Fiber input(5)	FC, with 400 um UV fiber cable (1 m)
	PC connection	USB
	Dimensions (L x W x H), mm	225x136x81
	Weight, kg	2.5
	(1) – the ASP-IRHSF model with fiber input has spectral range of 1200-2200 nm (2) – ASP-IRS and ASP-IRHS two operational regimes: CW (repetition rate from CW down to 6 kHz) and pulsed (from single-shot to 10 kHz); the pulsed regime has external sync feature (3) – dynamic range for pulsed mode given in brackets (4) – sensitivity threshold (NEP) is given at input beam diameter ~ 2 mm at peak sensitivity wavelength (ASP-IR/IRS – 1.5 um, ASP-IRHS – 2.3 um) (5) – models ASP-IRF/IRSF and ASP-IRHSF * - typical values