首页|High-power and large-alignment-tolerance fiber coupling of honeycomb-lattice photonic crystal Gamma-point band-edge laser
High-power and large-alignment-tolerance fiber coupling of honeycomb-lattice photonic crystal Gamma-point band-edge laser
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NSTL
Butt-end fiber coupling is a compact and efficient scheme especially suitable for a surface-emitting photonic crystal (PC) band-edge laser. The honeycomb-lattice PC offers a relatively large intact area without air-holes, and therefore, a high optical gain. The use of a Gamma-point band-edge mode allows vertical laser emission, yielding a fiber-coupled output power of more than 30 mu W. The system is virtually alignment-free in the lateral directions; however, it exhibits oscillatory decay in the vertical direction, which can be significantly suppressed by using an angle-cleaved fiber tip.
virtually alignment-freeexhibits oscillatoryvertical direction
Kim, S、Park, Y、Hwang, K、Lee, J、Leon, H、Kim, HJ
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Department of Physics and Astronomy and Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-747, South Korea
Photonics Device Team, Korea Photonics Technology Institute, Gwangju 500-210, South Korea
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