Dr. Joonhoi Koo Profile

Dr. Joonhoi Koo

at Agency for Defense Development

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Author

Publications (3)

Proceedings Article | 26 February 2018 Paper

Nanosecond pulse generation from actively Q-switched thulium-doped fiber laser using a high-speed optical switch

Joonhoi Koo, Woojin Shin

Proceedings Volume 10512, 105122E (2018) https://doi.org/10.1117/12.2289247

KEYWORDS: Optical switching, Q switching, Switches, Fiber lasers, Q switched lasers, Mid-IR, Modulation, Q switches, Laser resonators, Modulators

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SPIE Journal Paper | 19 July 2016

Linearly polarized, Q-switched, erbium-doped fiber laser incorporating a bulk-structured bismuth telluride/polyvinyl alcohol saturable absorber

Jinho Lee, Junsu Lee, Joonhoi Koo, Hojai Chung, Ju Han Lee

OE, Vol. 55, Issue 07, 076109, (July 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.7.076109

KEYWORDS: Modulation, Bismuth, Tellurium, Fiber lasers, Phase modulation, Q switched lasers, Polarization, Structured optical fibers, Q switches, Raman spectroscopy

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SPIE Journal Paper | 16 February 2016

A pulse-width-tunable, mode-locked fiber laser based on dissipative soliton resonance using a bulk-structured Bi₂Te₃ topological insulator

Junsu Lee, Joonhoi Koo, Ju Han Lee

OE, Vol. 55, Issue 08, 081309, (February 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.8.081309

KEYWORDS: Dispersion, Solitons, Mode locking, Bismuth, Tellurium, Fiber lasers, Saturable absorption, Polarization, Laser resonators, Modulation

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