Backward reflection analysis of transmitting channel of active laser ranging optics

Jinsuk Hong; Hae Seog Koh

doi:10.1117/12.2024033

25 September 2013 Backward reflection analysis of transmitting channel of active laser ranging optics

Jinsuk Hong, Hae Seog Koh

Proceedings Volume 8841, Current Developments in Lens Design and Optical Engineering XIV; 88410Q (2013) https://doi.org/10.1117/12.2024033
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

The designed Active LDR(Laser Detection and Ranging) System contains high-power Laser and its diameter is approximately 24mm. Although the laser transmitting channel and receiving optic channel are completely separated from each other and doesn’t share any of the optical components in design, each channel shares 4 wedge scanners, which are to overcome the narrow FOV(Field of View) of the optical system. Any backward reflection back to the fiber laser end must be carefully studied since it can damage the LD(Laser Diodes), the inner components of the laser unit because of the high amplification factor of the laser unit. In this study, the stray light caused by the transmitting channel’s laser and inner reflection by optical components were analyzed by ASAP(Advanced System Analysis Program) software. We also can confirm the operability and stability of the system by more than 6 months of operation of the system.

Citation Download Citation

Jinsuk Hong and Hae Seog Koh "Backward reflection analysis of transmitting channel of active laser ranging optics", Proc. SPIE 8841, Current Developments in Lens Design and Optical Engineering XIV, 88410Q (25 September 2013); https://doi.org/10.1117/12.2024033

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