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Conference Paper
Eye Safe Laser Radar Using a Microchip Laser, 2-dimensional InGaAs/InP Photodiode Arrays and the Bi-axial Optical Lens System
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- Authors
- Eun Soo Nam, M. S. Oh, H. Y. Kim, Y. J. Chong
- Issue Date
- 2008-12
- Citation
- Asia-Pacific Microwave Conference (APMC) 2008, pp.1-4
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- We have developed a high-resolution, direct detection imaging ladar using a microchip laser and the 32×32 two dimensional InGaAs/InP pin photodiode array. With microchip lasers and compact microelectronic arrays of detectors and timing circuitry, we can fabricate a imaging laser radar small enough to be portable. The microchip laser employed in this lidar utilizes 1.55 µm InGaAsP/InP high power laser diode. The 32 × 32 InGaAs/InP PIN diode array offers robust, solid-state, good sensitivity. In the near future, InGaAs/InP APD having a larger arrays of 128 × 128 pixels and lenslet array will be developed which allows for the capture of entire 3-D images on a single laser pulse at high frame rates. The effort for the development of these detector and laser technologies will lead to 3-D imaging systems with higher spatial resolution at longer ranges in compact packages.
- KSP Keywords
- 3D imaging, Bi-axial, High resolution, Laser pulse, Lenslet array, Optical lens, PIN Diode, PIN photodiodes, Photodiode array, Three dimensional(3D), direct detection