ASP-150. Multipurpose Spectrometer
|Spectral range for choosing the registration domain*, nm||190-1100||190-800||190-450||190-300|
|Registration domain width*(1), nm||950||640||480||315||145||90||40||25|
|Spectral resolution*, nm||0.6||0.42||0.3||0.2||0.09||0.06||0.025||0.017|
|Input slit||10 µm|
|Focal length||150 mm|
|Focal length of the camera objective||150 mm|
|Input type(2)||free-space and SMA905 fiber socket (FC socket or fiber patch-cord on request)|
|Dimensions (LxWxH)||242х115х76 mm (ASP-150T); 205х115х76 mm (ASP-150C)|
|CCD array specifications (any array can be combined with any grating type)|
|Model||Toshiba 1205DG||Toshiba 1304DG||Hamamatsu
|Number of pixels||2048||3648||1024|
|Pixel width||14 µm||8 µm||25 µm|
|Pixel height||200 µm||200 µm||500 µm|
|Minimum exposure time||4.2 ms||7.3 ms||2.1 ms|
|Maximum exposure time||4 s||5 s||5 s|
|Meansquare noise of reading, counts of ADC||5.4||3.5||16(4.4)(4|
|Dynamic range||1000:1||1000:1||1000:1 (4000:1)(4)|
|(1) - the necessary grating type, and hence the width and the central wavelength of the instantaneously registered range (aka registration window) inside the full possible range of the CCD detector should be specified when sending the request. The ASP-150C model has the chosen grating and its position fixed at factory, while the ASP-150T model has the possibility to adjust the position of the registration window via microscrew rotation, thus covering full possible range with the highest resolution;
(2) - each spectrometer is equipped with a fiber socket and allows measurement of either free-space or fiber signals without any realignment;
(3) - sensitivity given at the wavelength of 550 nm;
(4) - the Hamamatsu arrays provide for sensitivity control via special driving signal, that can set either low (values in brackets) or high sensitivity mode;
(5) - the property of the CCD to prevent the charge flow from the neighboring overexposed pixels;
* - values given for the Toshiba 1304DG CCD array.
The ASP-150C spectrometer is an ideal choice for a wide variety of different optical applications with its flexible tuning and high resolution. There is always a place for the ASP-150C on the optical table due to its small size, functionality and friendly interface.
The ASP-150T model is able to carry out measurements in a wider spectral range without any losses in resolution, owing to a special tunable mechanism.
All models have a special fiber input with a spectral slit, the size of which is conditioned with the detector. It allows measurement of either free-space or fiber signals without any realignment. However, it is not recommended to use fiber to measure spectrum of a femtosecond laser due to signal modulation and subsequent spectrum distortion.
Avesta is participating in Ultrafast Phenomena 2018 conference and tabletop exhibition in Hamburg, Germany (15-20 July). We would be glad to discuss any of the ongoing and future projects with the ultrafast community at our tabletop. Hope to see you soon!
Avesta’s facilities will be closed for the New Year break from 30 Dec 2017 till 08 Jan 2018. We will resume all operations on 09 Jan 2018. However, we hope to provide periodic e-mail correspondence during the holidays. We wish you a fruitful and prosperous Year 2018!