SESAM Semiconductor Saturable Absorber Mirror
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China
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On FindLight:
since 2022
Description
SESAM (Semiconductor Saturable Absorber Mirror) mode-locked ultrafast pulsed lasers represent a significant advancement in the field of laser technology. These lasers have revolutionized the development of mode-locked lasers by providing a reliable and efficient solution for generating ultrafast pulses. However, one of the main challenges has been extending SESAM technology to the mid-infrared (MIR) region, which is crucial for various advanced applications.
Our innovative design utilizes an InAs/GaSb superlattice SESAM, capable of achieving over 99% reflectivity and a modulation depth ranging from 10% to 15%. This design offers remarkable flexibility, with relaxation times between 1.4ps and 720ps, and operates within a wavelength range of 2800nm to 5000nm. The high saturation energy flow ensures a stable phase mode locking function, marking a world-first achievement in realizing a 3-5μm ultrafast fiber laser. This breakthrough provides an ultra-wide operating bandwidth and flexible parameter design, catering to the diverse needs of lasers in the 3-5μm band, including fluoride fiber lasers, crystal lasers, and semiconductor lasers.
The introduction of this technology is poised to significantly advance the development of mid-infrared ultrafast coherent sources and their related application fields. By meeting the stringent requirements of various laser types within the 3-5μm spectral range, this SESAM-based solution is set to drive innovation and expand the possibilities in mid-infrared laser applications.
SESAM Semiconductor Saturable Absorber Mirror
Specifications |
|
|---|---|
| Central Wavelength: | 2800nm | 3500nm | 3500nm |3500nm |
| Absorptivity: | 40% | 38% | 38% | 38% |
| Modulation Depth: | 15% | 11.5% | 14% | 11.5% |
| Absorption Recovery Time: | 680ps | 720ps | 7ps | 1.4ps |
| Saturation Fluence: | 70μJ/cm² | 70μJ/cm² | 50μJ/cm² | 40μJ/cm² |
Features
- World's First 3-5 μm Mid-Infrared Mode-Locked Laser: Introducing the first-ever ultrafast fiber laser operating in the 3-5 μm range, setting a new standard in laser technology.
- High Reflectivity and Modulation Depth: Achieves over 99% reflectivity with a modulation depth ranging from 10% to 15%, ensuring superior performance.
- Flexible Wavelength Range: Operates within a wavelength range of 2800nm to 5000nm, offering flexibility for various applications.
- Ultra-Wide Operating Bandwidth: Designed to meet the diverse requirements of different laser types, including fluoride fiber lasers and crystal lasers.
- High Saturation Energy Flow: Ensures stable phase mode locking, enhancing the reliability and efficiency of the laser.
- Fast Absorption Recovery Time: Features absorption recovery times ranging from 1.4ps to 720ps, allowing for rapid operation.
- Higher Damage Threshold: Engineered to withstand higher energy levels, providing durability and longevity.
- Competitive Pricing: Offers a cost-effective solution without compromising on quality and performance.
- Excellent After-Sales Service: Benefit from perfect and fast support, ensuring customer satisfaction and peace of mind.
Applications
- Mid-Infrared Ultrafast Coherent Sources: SESAM technology enables the development of ultrafast pulsed lasers in the mid-infrared (MIR) region, specifically in the 3-5 μm range.
- Fluoride Fiber Lasers: The ultra-wide operating bandwidth and flexible parameter design make SESAM suitable for use in fluoride fiber lasers.
- Crystal Lasers: SESAM can be applied to crystal lasers, benefiting from its stable phase mode locking function and high saturation energy flow.
- Semiconductor Lasers: The technology meets the application requirements of semiconductor lasers within the 3-5 μm spectral range.
- Scientific Research: SESAM's unique properties promote advancements in scientific research involving mid-infrared ultrafast coherent sources.
- Industrial Applications: The high-stability and competitive pricing of SESAM-based lasers make them suitable for various industrial applications.
- Medical Applications: The ability to operate in the mid-infrared range opens up potential uses in medical diagnostics and treatments.
Frequently Asked Questions
SESAM is a mode-locked ultrafast pulsed laser that represents a breakthrough in the development of mode-locked lasers. It uses InAs/GaSb superlattice technology to achieve high reflectivity and modulation depth in the mid-infrared region.
The SESAM laser has a wavelength range of 2800nm-5000nm, making it suitable for applications in the 3-5μm band.
The available model types for the SESAM laser are SAM-2800-40-680ps-c/e, SAM-3500-38-720ps-c/e, SAM-3500-38-7ps-c/e, and SAM-3500-38-1.4ps-c/e.
The main advantages of the SESAM laser are its high-stability mode-locking function in the mid-infrared range, higher damage threshold, perfect after-sales service, and competitive pricing.
The absorption recovery time of the SESAM laser varies depending on the model type, ranging from 680ps to 1.4ps.