MISS 2D spectrometer

Acquire spatially-resolved spectrum of laser beams

MISS (Mini Imaging Spatial Spectrometer) gives access to the spatially-resolved (2D) spectrum of laser beams. Thanks to its unique compactness, MISS allows vertical and horizontal spatial chirp measurements at any position of your beam path. It can easily be integrated at different stages of amplified laser systems. It can be used in free-space mode to take benefit of the spatial resolution, or conveniently with a fiber input, like a regular spectrometer (plug & play SMA fiber connector included).

Ultra-compact and robust

Spatial chirp measurement

High spatial and spectral resolutions

Input beam diameter up to 12.7 mm

UV - VIS - SWIR

2D spectrum characterization for many common types of lasers

A conventional spectrometer allows you to know the spectrum for your laser, i.e. the intensity of each wavelength (or frequency) present in your laser. Most of regular spectrometers give an average spectrum (1D), where imaging spectrometer allows you to know the spectrum at different positions along the laser beam cross-section (2D).

Our MISS spectrometer gives you a two dimensions image, one dimension being the position in one diameter of the beam, the other being the spectrum at this position.

2D imaging spectrometers therefore perform a spatially resolved spectral characterization of lasers, which is very helpful for investigation of spatio-spectral couplings such as the spatial chirp usually induced in the compressor stages of ultrafast lasers or during the amplification stage of broadband spectrum.

Product reviews

We are using large area beam profilers for the alignment of the optical paths in our machines. The software is easy to use and very intuitive. The combination of the large sensor area with the relatively small footprint of the camera helps a lot for installing the camera in industrial machines where the space is limited. In addition to the cameras, we are also using the ROC autocorrelator. The device is easy to align and perfectly suited for temporary installation in a machine, due to its compact size. In case of problems and questions, the customer support of Femto Easy is reactive and provides good solutions.

Beat Jäggi

LASEA - Switzerland

Activity Manager Service

Our MISS-Broadband-L and MISS-VSWIR imaging spectrometers are extremely useful to diagnose our few-cycle light sources, even after post-compression. The spatio-spectral resolution allows to check the pulse quality both in near and far field, that gives an unmatched performance for measuring the spatio-spectral distortions of ultrashort pulses.

Roland Nagymihály

ELI ALPS - Hungary

Group Leader, High Field Laser Group

Our MISS imaging spectrometer is very easy to use and much more compact than the other similar systems we have in our group. I also appreciate the very quick support from the team.

Chengyong Feng

LLE University of Rochester - USA

Researcher

Specifications:

MISS 2D Spectrometer : UV-Vis

wdt_ID wdt_created_by wdt_created_at wdt_last_edited_by wdt_last_edited_at - UV-VIS IR Yb TiSa UV-VIS-L IR-L TiSa-L Broadband-L
1 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Type Standard beam size Standard beam size Standard beam size Standard beam size Large beam (L) Large beam (L) Large beam (L) Large beam (L)
2 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Spectral range (nm) 240 - 800 545 - 1100 900 - 1090 725 - 875 250 - 700 650 - 1100 360 - 1040 280 - 1095
3 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Camera resolution 2056 x 1542 - 3 Mpx 2056 x 1542 - 3 Mpx 2056 x 1542 - 3 Mpx 2056 x 1542 - 3 Mpx 2448 x 2048 - 5 Mpx 2448 x 2048 - 5 Mpx 2448 x 2048 - 5 Mpx 5472 x 3478 - 20 Mpx
4 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Spectral sampling (nm/px) 0.29 0.27 0.11 0.11 0.23 0.22 0.28 0.16
5 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Optical spectral resolution (nm) 1 < 1 < 0.8 < 0.35 < 0.45 1 - 1.5 1 - 1.3 1 - 1.5 0.6 - 1.1
6 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Input beam size (mm) > 6.3 > 8.6 > 12.5 > 12.5 > 12.5 > 12.5
7 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Max spatial resolution (μm) < 4.5 < 4.5 < 4.5 < 4.5 5.2 5.2 6.5 3.6
8 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Exposure timemin – max (ms) 0.024 - 1 000 0.024 - 1 000 0.024 - 1 000 0.024 - 1 000 0.013 - 1 000 0.013 - 1 000 0.013 - 1 000 0.0112 - 1 000
9 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Shutter type Global Global Global Global Global Global Global Rolling
10 Goran 10/02/2026 06:42 PM Goran 10/02/2026 06:42 PM Detection CMOS 12 Bits – 72 dB CMOS 12 Bits – 72 dB CMOS 12 Bits – 72 dB CMOS 12 Bits – 72 dB CMOS 12 Bits – 72 dB CMOS 12 Bits – 72 dB CMOS 12 Bits – 72 dB CMOS 12 Bits – 72 dB
- UV-VIS IR Yb TiSa UV-VIS-L IR-L TiSa-L Broadband-L

1 Resolution achieved on the highest resolved part of the spectral range
2 Due to rolling shutter, the actual minimum exposure time to properly capture the whole beam will be limited by the laser beam size (in case of single-shot measurement) or by the laser repetition rate. For single-shot measurement : the larger the beam, the longer the required minimum exposure time. Otherwise, the slower the repetition rate, the longer the required minimum exposure time.

Custom versions available on request.

MISS 2D Spectrometer : SWIR

wdt_ID wdt_created_by wdt_created_at wdt_last_edited_by wdt_last_edited_at - SWIR 320 SWIR 1280 VSWIR 656 / L VSWIR 1296 / L
1 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Accessible spectral range (nm) 900 - 1700 900 - 1700 400 - 1700 400 - 1700
2 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Typical spectral window Δλ (nm) 500 800 250 / 350 500 / 700
3 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Camera resolution 320 x 256 - 0.08 Mpx 1280 x 1024 - 1.3 Mpx 656 x 520 - 0.3 Mpx 1296 x 1032 - 1.3 Mpx
4 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Spectral sampling (nm/px) 1.7 0.7 0.4 - 0.6 0.4 - 0.6
5 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Optical spectral resolution (nm) 1 3.5 2 1 / 1.5 1 / 1.5
6 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Input beam size (mm) 6.4 10.2 3.3 / 6.5 6.5 / 12.5
7 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Max spatial resolution (μm) 25 10 6.3 / 12.5 6.3 / 12.5
8 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Exposure timemin – max (ms) 0.01 - 500 0.01 - 500 0.01 - 500 0.01 - 500
9 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Shutter type Global Global Global Global
10 Goran 10/02/2026 06:43 PM Goran 10/02/2026 06:43 PM Detection InGaAs 12 Bits InGaAs 12 Bits InGaAs 12 Bits InGaAs 12 Bits
- SWIR 320 SWIR 1280 VSWIR 656 / L VSWIR 1296 / L

Optional features

High dynamic range

Software mode to increase the dynamic range of the MISS signal acquisition from 12 to 16 bits. Not compatible with pure single-shot measurements as 2 images are necessary

Trigger

Synchronization of the MISS detection to an external signal for accurate laser single pulse extraction up to 75 kHz

Fiber input connector

Fiber connector to connect a fiber and use the MISS as a regular spectrometer (not imaging)

Software

Like every Femto Easy product, the MISS comes with a powerful and very user friendly software, especially designed for touch screens, in order to give you the best user experience.

Learn more about softwareContact Us to Schedule Live Demo