ASP-IR. Scanning IR Spectrometer
|Spectral range, nm||500-1700||900-2600||1200-3450|
|Scanning speed, nm/s||up to 300||up to 400||up to 400|
|Spectral resolution, nm
|Spectral resolution*, nm
(given for 400 um fiber core)
|Input type(1)||free-space and SMA905 fiber socket (FC socket or fiber patch-cord on request)|
|Focal length, mm||150|
|Input slit, um||15|
|Output slit, um||20|
|Photodetector||InGaAs photodiode||InAs PV cooled detector|
|Source pulse repetition rate, kHz||any(2)|
|Detector active area height, mm||1|
|NEP [NEE]*(2...4), nW [pJ]||0.6 [0.15]||42 [2.5]||145 |
|Relative dynamic range*(3)||3 [1.5] x105||7  x105||6 [1.5] x104|
|ADC||16 bit, 65536 counts|
|Dimensions (L x W x H), mm||225x136x81||295x136x81|
|(1) – each spectrometer is equipped with a fiber socket and allows measurement of either free-space or fiber signals without any realignment
(2) – all spectrometers have two operational modes: CW (repetition rate from CW down to 6 kHz) and pulsed (up to 8 kHz for ASP-IR-1.7 and up to 25 kHz for ASP-IR-2.6 and ASP-IR-3.5); the pulsed mode has external trigger feature
(3) – dynamic range for pulsed mode given in brackets
(4) – NEP - noise equivalent power and NEE - noise equivalent energy are given at input beam diameter ~ 2 mm at peak sensitivity wavelength (ASP-IR-1.7 – 1.5 um, ASP-IR-2.6 – 2.3 um, ASP-IR-3.5 – 3.25 um)
* - typical values.
The ASP-IR boasts a scanning mechanism that allows measurements in IR range without 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 of down to 0.5 nm. The unit also features a trigger signal input for convenient pulsed laser measurement.
The spectrometer has a special fiber input, allowing measurement of either free-space or fiber signals without any realignment.
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Avesta will be participating in LASER World of Photonics 2019 trade show in Munich on June 24-27, our booth number is B3/338 (part of a joint Russian exposition space).