Single-mode operation of coupled-cavity lasers based on two-dimensional photonic crystals
- 17 December 2001
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (25) , 4091-4093
- https://doi.org/10.1063/1.1427158
Abstract
We report the fabrication of short-cavity lasers with highly reflective two-dimensional photonic crystal mirrors on an InGaAsP/InP laser structure emitting at 1.57 μm. An intracavity photonic crystal mirror creates two coupled cavities, which provide additional longitudinal mode selection for stable single-mode operation with side-mode suppression ratios exceeding 35 dB. The shortest lasers with l=100 μm overall length have a threshold current of 13 mA and provide more than 4 mW power under continuous wave operation. Longer devices with l=200 μm deliver up to 9 mW. A maximum modulation bandwidth of 7.9 GHz was determined by relative intensity noise measurements.Keywords
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