SETTING NEW STANDARDS WITH T-DCF
T-DCF: The Basis of Ultrafast Fiber Laser Performance
Our mission is to enable widespread adoption of fiber laser-based micromachining and material processing technology by providing cost-effective and high-performance sources of ultrashort laser pulses. This is made possible by our patented, unique T-DCF technology, developed by Dr. Valery Filippov and Prof. Yuri Chamorovski, enabling high-performance ultrafast fiber lasers. This makes Ampliconyx a pioneer in this field as we are the only company worldwide offering fiber-based amplifier modules and laser systems from kW to GW peak power.
Demonstration of Our Patented Active Tapered Double Clad Fiber
What Exactly Is T-DCF and How Does It Work?
T-DCF is an optical fiber with a core doped by rare-earth elements (Yb, Er, Tm etc.) and it is exploits as a gain element in high power amplifiers, both CW and pulsed. Core and cladding diameters of T-DCF are smoothly varying along length. Usually the core parameters (diameter and numerical aperture) are usually are chosen such that fundamental mode only is supported at the narrow part of T-DCF.
In the wide side, a T-DCF has a substantially larger core diameter (typically within range 50 to 200 μm), while the mode content and beam quality (M2) remains the same as it was in the narrow side. Thus, in the active T-DCF, a unique situation realized when only sole fundamental mode propagates in the core where hundreds of modes potentially are able to exsist. Thus, the tapering of the active fiber allows achieve an excitation and propagation of fundamental mode only in a multimode core with a diameter of several tens of microns.
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Comparison chart: conventional fiber vs. T-DCF?]
Key Advantages of
Active T-DCF
- Large mode field diameter (up to 100um) resulting in significant increasing nonlinear effects (SRS, SPM) threshold in fiber lasers and amplifiers;
- Large clad pump absorption (typically more than 20dB), which allow make amplifiers (lasers) shorter and thereby additionally (in comparison with a conventional fiber) increase the threshold for nonlinear effects;
- Immunity to the stimulated Brillouin scattering (SBS) due to modulation of the core diameter.
Patents & Intellectual Property
[Goal: Secure technological uniqueness]
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Inventors: Dr. Valery Filippov & Prof. Yuri Chamorovski
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Patent Number: US 8,433,168 B2
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Status: Granted
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Grant Date: April 30, 2013
FAQ – Frequently Asked Questions
What fundamentally differentiates an active Tapered Double Clad Fiber (T-DCF) from conventional LMA and single-mode fibers?
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Which applications benefit most from T-DCF technology
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How easily can T-DCF amplifiers be integrated into existing architectures?
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To what extent can T-DCF geometry and parameters be customized within the existing IP framework?
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What lifetime performance metrics are available for active T-DCF
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