Versatile pulse duration measurement from 3 fs to 80 ps
The MS-ROC (Multi-Shot Row Optical Autocorrelator) is a scanning autocorrelator designed for accurate pulse duration measurements of repetitive femtosecond and picosecond lasers. Combining high sensitivity with an extended measurement range, it can characterize pulses from 3 fs to 80 ps, depending on the configuration, even at pulse energies down to the pJ level. Swappable crystals provide broad wavelength coverage from 480 to 2150 nm, while high scan speeds enable real-time measurement and pulse optimization.
Extended measurement range & high resolution
Fast and easy alignment
High sensitivity down to the pJ level
Broad wavelength coverage

Available documentation
2D / 3D drawings
Scientific papers
Logical rotation of non-separable states via uniformly self-assembled chiral superstructures
Zhang, Yi-Heng; Liu, Si-Jia; Chen, Peng; Zhu, Dong; Chen, Wen; Ge, Shi-Jun; Wang, Yu; Zhang, Zhi-Feng; Lu, Yan-Qing;
Nature Communications; 2024, Nature Publishing Group UK London
Nanjing University; China
A 4-GHz actively driven ultra-low phase noise mode-locked fibre laser
Abdulkadir Yentur, Mehmet Ziya Keskin, and Ibrahim Ozdur
Electronics Letters; 2024, Wiley
TOBB University of Economics and Technology; Turkey
Optimization of 1.03 μm femtosecond pulse laser tripling efficiency based on temporal walk-off compensation
Yang, Li; Ji, Lailin; Liu, Dong; Rao, Daxing; Zhang, Tianxiong; Shan, Chong; Shi, Haitao; Zhao, Xiaohui; Cui, Yong; Gao, Yanqi;
Optics Communications; 2023, Elsevier
USST; China
Etude comparée de l'émission d'électrons de nanopointes de tungstène et de diamant: émission de champ et photoémission induite par laser femtoseconde
Torresin, Olivier;
; 2019, Université Paul Sabatier-Toulouse III
LCAR; France
Product reviews
Autocorrelator reviews
Specifications
MS-ROC-Models
| wdt_ID | wdt_created_by | wdt_created_at | wdt_last_edited_by | wdt_last_edited_at | MS-ROC | MS-ROC LP | MS-ROC SP | MS-ROC SLP | MS-ROC USP | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Pulse duration min | 50 fs | 50 fs | 15 fs | 15 fs | 3 fs |
| 2 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Pulse duration max | 40 ps | 80 ps | 40 ps | 80 ps | 40 ps |
| 3 | Goran | 10/02/2026 06:40 PM | Mathieu | 19/02/2026 12:53 PM | Accessible spectral range (nm)1 | 480 - 2150 | 480 - 2150 | 480 - 2150 | 480 - 2150 | 480 - 2150 |
| 4 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Minimum temporal resolution | 1 fs | 1 fs | 0.25 fs | 0.5 fs | 0.25 fs |
| 5 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Maximum scan speed | 39 ps/s | 78 ps/s | 39 ps/s | 78 ps/s | 39 ps/s |
| 6 | Goran | 10/02/2026 06:40 PM | Mathieu | 19/02/2026 12:53 PM | Min input pulse energy2 | |||||
| 7 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | 1 MHz | 100 MHz | 5 pJ | 0.5 pJ | 5 pJ | 0.5 pJ | 1 nJ | 100 pJ | 1 nJ | 100 pJ | 1 nJ | 100 pJ |
| 8 | Goran | 10/02/2026 06:40 PM | Mathieu | 19/02/2026 12:54 PM | Input pulse repetition rate | 100 Hz to GHz 3 | 100 Hz to GHz 3 | 100 Hz to GHz 3 | 100 Hz to GHz 3 | 100 Hz to GHz 3 |
| 9 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Input polarization | linear vertical | linear vertical | linear vertical | linear vertical | linear vertical |
| 10 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Detection | CMOS 12 Bits, 3 Mpx, 72 dB | CMOS 12 Bits, 3 Mpx, 72 dB | CMOS 12 Bits, 3 Mpx, 72 dB | CMOS 12 Bits, 3 Mpx, 72 dB | CMOS 12 Bits, 3 Mpx, 72 dB |
| 11 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | PC Interface | USB 3.1 | USB 3.1 | USB 3.1 | USB 3.1 | USB 3.1 |
| 12 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Beam height (mm) | 69 - 148 | 69 - 148 | 69 - 148 | 69 - 148 | 69 - 148 |
| 13 | Goran | 10/02/2026 06:40 PM | Goran | 10/02/2026 06:40 PM | Dimensions (mm) | 222 x 194 x 129 | 222 x 194 x 129 | 222 x 194 x 129 | 222 x 194 x 129 | 222 x 194 x 129 |
1 Effective spectral bandwidth to be defined within the accessible spectral range according to customer’s requirements.
2 Those values give an order of magnitude. The exact sensitivity depends on many parameters (pulse duration, beam profile, wavelength…)
3 Low repetition rate available as an option.
Optional features
Additional crystals
The standard MS-ROC configuration includes one crystal. Additional plug-and-play crystals can be added to extend the wavelength range and swapped within seconds for fast and flexible wavelength configuration.
Fiber input connector
A plug-and-play collimation module with a fiber connector enables quick switching between free-space and fiber input. The module mounts directly onto the MS-ROC with no additional alignment required.
Low repetition rate
Synchronization mode designed for lasers operating at low repetition rates. Recommended for repetition rates below 200 kHz.
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Software

STAR Software provides an intuitive interface for easy access to measurement data and device controls. Compatible with both Windows and Linux, it features a touchscreen-friendly interface and enables remote operation of the MS-ROC from a PC, tablet or smartphone. Custom software developments are also available upon request.
Learn more about softwareContact Us to Schedule Live DemoVideos
Pulse duration measurement made easy
Our engineers employ the latest technologies and frameworks to create autocorrelator solutions that combine a strong easy-to-use experience with high scientific performance.























