MID-Infrared Sesam for Laser Pulse Shaping

Product Description

SESAM
SESAM (Semiconductor Saturable Absorber Mirror ) mode-locked ultrafast pulsed lasers represent an important breakthrough in the development of mode-locked lasers, but a key challenge remains, that is, extending SESAM technology to the mid-infrared (MIR) region.
We propose a design based on InAs/GaSb superlattice SESAM, which can achieve over 99% reflectivity, 10%~15% modulation depth, and 1.4ps-720ps flexibility in the wavelength range of 2800nm-5000nm. relaxation time and high saturation energy flow, it can achieve a stable phase mode locking function. This is the first time in the world to realize a 3-5μm ultrafast fiber laser. Its ultra-wide operating bandwidth and flexible parameter design can meet the requirements of different types of lasers in the 3-5μm band, such as fluoride fiber lasers, crystal lasers, and even 3-5μm spectral range semiconductor lasers, etc., and will greatly promote the development of mid-infrared ultrafast coherent sources and related application fields.
Applications
Key mode-locking component for DPSS passive mode-locked laser
Structure Class-II Superlattice with wide bandwidth covering 2~5μm No Lattice Mismatching, 10×LIDT than conventional models Superfast Relaxation Time (<1.4ps) Main Features: World's first 3-5 μm high-stability mid-infrared mode-locked laser Higher damage threshold Perfect and fast after-sales service Competitive product prices Specifications:

Model type	SAM-2800-40-680ps-c/e	SAM-3500-38-720ps-c/e	SAM-3500-38-7ps-c/e	SAM-3500-38-1.4ps-c/e
Central Wavelength	2800nm	3500nm	3500nm	3500nm
Absorptivity	40%	38%	38%	38%
Modulation Depth	15%	11.5%	14%	11.5%
Relaxation Time	680ps	720ps	7ps	1.4ps
Saturation Fluence	70μJ/cm²	70μJ/cm²	50μJ/cm²	40μJ/cm²

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