Q-switching of Yb-doped double-clad fiber laser using micro-optical waveguide on micro-actuating platform modulator for marking applications
Citation
Neugroschl, D., Kopp, V. I., Singer, J., & Zhang, G. (2009). “Vanishing-core” tapered coupler for interconnect applications. In Photonics Packaging, Integration, and Interconnects IX, Vol. 7221, 72210G. SPIE.
Keywords
- Q-switching
- Yb3+-doped fiber laser
- Micro-optical waveguide (MOW)
- Micro-actuating platform (MAP)
- Light modulator
- Fused biconical taper (FBT) coupler
- Axial stress
- Coupling efficiency
- Modulation of optical power
- Laser cavity
- Peak power
- Repetition rate
- Marking applications
- Photoelastic effect
- Fiber optic device
- All-fiber laser
- Continuous wave (CW) operation
- Rare-earth doped fiber lasers
Brief
The article presents a novel micro-optical waveguide on a micro-actuating platform (MOW on MAP) light modulator based on a fused biconical taper coupler subjected to controlled axial stress, which was successfully used for Q-switching an Yb3+-doped double-clad fiber laser.
Summary
This paper presents a new all-fiber Q-switch for Yb3+-doped fiber lasers using a micro-optical waveguide (MOW) based on a fused biconical taper (FBT) coupler integrated with a micro-actuating platform (MAP). By precisely controlling axial stress on the FBT coupler, the MOW on MAP device modulates the laser cavity, achieving Q-switched pulses with peak powers up to 699mW at a repetition rate of 18.6kHz, demonstrating its potential for marking applications.
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