Laser beam director system monitoring the alignment state with a null reflector

Yeon Soo Kim; Hyun Sook Kim; Yong Chan Park; Eung Cheol Kang; Soo Sang Lee; Jeong Ju Kim; Hae Dong Eom; Sung Un Park

doi:10.1117/12.718106

10 May 2007 Laser beam director system monitoring the alignment state with a null reflector

Yeon Soo Kim, Hyun Sook Kim, Yong Chan Park, Eung Cheol Kang, Soo Sang Lee, Jeong Ju Kim, Hae Dong Eom, Sung Un Park

Proceedings Volume 6569, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXI; 656909 (2007) https://doi.org/10.1117/12.718106
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

The laser beam director (LBD) is a reflective telescope which has a long optical Coude path. Its optical path can be off the original aligned if rotational jitter of the telescope turret occurs or structural deformation in the LBD due to external disturbances occurs. It can make the laser beam deviate from the line of sight of the telescope. Therefore misalignment must be monitored and corrected. We adapt null optics to the telescope in order to monitor alignment state of the LBD. Misalignment is corrected in real time through the fast steering mirror located between the primary and secondary mirror of the telescope. Test results on rotation of the telescope turret show that aligned state of the LBD is kept in spite of rotational jitter of the turret.

Citation Download Citation

Yeon Soo Kim, Hyun Sook Kim, Yong Chan Park, Eung Cheol Kang, Soo Sang Lee, Jeong Ju Kim, Hae Dong Eom, and Sung Un Park "Laser beam director system monitoring the alignment state with a null reflector", Proc. SPIE 6569, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXI, 656909 (10 May 2007); https://doi.org/10.1117/12.718106

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available