Precision laser ranging using extremely chirped pulses from chirped fiber Bragg gratings

Leonard M. Kisimbi; Kyungbum Kim; Luis C. Archundia; Shinwook Lee; Peter J. Delfyett Jr.

doi:10.1117/12.673763

12 May 2006 Precision laser ranging using extremely chirped pulses from chirped fiber Bragg gratings

Leonard M. Kisimbi, Kyungbum Kim, Luis C. Archundia, Shinwook Lee, Peter J. Delfyett Jr.

Proceedings Volume 6243, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications II; 62430U (2006) https://doi.org/10.1117/12.673763
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Spectrally resolved interferometry combining up-chirped and down-chirped pulses allows for millimeter range resolution in laser ranging applications. Key in our approach is the use of temporally stretched optical pulses of 5 nanoseconds in duration. These stretched pulses were obtained from a femtosecond semiconductor mode-locked laser and were up-chirped and down-chirped using a chirped fiber Bragg grating and recombined to realize spectral interferometry. This approach provides a means to achieve the high pulse energies required for a laser radar application which are easy to achieve using nanosecond pulses but maintains the high spatial resolution associated with femtosecond optical pulses.

Citation Download Citation

Leonard M. Kisimbi, Kyungbum Kim, Luis C. Archundia, Shinwook Lee, and Peter J. Delfyett Jr. "Precision laser ranging using extremely chirped pulses from chirped fiber Bragg gratings", Proc. SPIE 6243, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications II, 62430U (12 May 2006); https://doi.org/10.1117/12.673763

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