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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 21 — Oct. 11, 2010
  • pp: 21687–21696

Novel spectral range expansion method for liquid crystal adaptive optics

Quanquan Mu, Zhaoliang Cao, Lifa Hu, Yonggang Liu, Zenghui Peng, and Li Xuan  »View Author Affiliations


Optics Express, Vol. 18, Issue 21, pp. 21687-21696 (2010)
http://dx.doi.org/10.1364/OE.18.021687


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Abstract

Energy loss is a main problem of liquid crystal adaptive optics systems (LC AOSs). It is caused by the polarization dependence and narrow spectral range. The polarization dependence has been avoided by Love and Mu et al. [Appl. Opt. 32, 2222 (1993); Appl. Opt. 47, 4297 (2008)]. In this paper, a novel method was proposed to extend the spectral range of LC AOSs using multiple liquid crystal wavefront correctors (LCWFCs) to improve the energy utilization. Firstly, the chromatism of an LCWFC was measured and analyzed. The calculated results indicate that one LCWFC is only suitable to perform adaptive correction for a narrow waveband; therefore, multiple LCWFCs must be used to achieve a broadband correction. Secondly, based on open-loop control, a novel optical layout consisting of three LCWFCs was proposed to extend the spectral range of LC AOSs and thus achieve correction in the whole waveband of 520–810 nm. Thirdly, a broadband correction experiment was conducted and near diffraction-limited resolution was achieved in the waveband of 520–690 nm. Finally, a 500 m horizontal turbulence correction experiment was performed in the waveband of 520–690 nm. With adaptive correction, the resolution of the optical system was improved significantly and the image of the single fiber was clearly resolved. Furthermore, compared with a sub-waveband system, the system energy was improved. The energy of the whole waveband is equal to the sum of all the sub-wavebands. The experiment results validated our method and indicate that the chromatism in a broad waveband of LC AOSs can be eliminated. And then, the system energy can be improved greatly using the novel method.

© 2010 OSA

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Adaptive Optics

History
Original Manuscript: August 5, 2010
Revised Manuscript: September 10, 2010
Manuscript Accepted: September 17, 2010
Published: September 29, 2010

Citation
Quanquan Mu, Zhaoliang Cao, Lifa Hu, Yonggang Liu, Zenghui Peng, and Li Xuan, "Novel spectral range expansion method for liquid crystal adaptive optics," Opt. Express 18, 21687-21696 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-21-21687


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References

  1. Z. Cao, Q. Mu, L. Hu, D. Li, Y. Liu, L. Jin, and L. Xuan, “Correction of horizontal turbulence with nematic liquid crystal wavefront corrector,” Opt. Express 16(10), 7006–7013 (2008). [CrossRef] [PubMed]
  2. G. D. Love, “Wave-front correction and production of Zernike modes with a liquid-crystal spatial light modulator,” Appl. Opt. 36(7), 1517–1520 (1997). [CrossRef] [PubMed]
  3. S. Restaino, D. Dayton, S. Browne, J. Gonglewski, J. Baker, S. Rogers, S. McDermott, J. Gallegos, and M. Shilko, “On the use of dual frequency nematic material for adaptive optics systems: first results of a closed-loop experiment,” Opt. Express 6(1), 2–6 (2000). [CrossRef] [PubMed]
  4. M. A. A. Neil, M. J. Booth, and T. Wilson, “Dynamic wave-front generation for the characterization and testing of optical systems,” Opt. Lett. 23(23), 1849–1851 (1998). [CrossRef]
  5. G. D. Love, “Liquid-crystal phase modulator for unpolarized light,” Appl. Opt. 32(13), 2222–2223 (1993). [CrossRef] [PubMed]
  6. G. D. Love, S. R. Restaino, R. C. Carreras, G. C. Loos, R. V. Morrison, T. Baur, and G. Kopp, “Polarization insensitive 127-segment liquid crystal wavefront corrector,” OSA summer topical meeting on adaptive optics. p. 288–290 (1996)
  7. Q. Mu, Z. Cao, D. Li, L. Hu, and L. Xuan, “Open-loop correction of horizontal turbulence: system design and result,” Appl. Opt. 47(23), 4297–4301 (2008). [CrossRef] [PubMed]
  8. S. Serati and J. Stockley, “Advances in liquid crystal based devices for wavefront control and beamsteering,” Proc. SPIE 5894, 58940K (2005). [CrossRef]
  9. J. E. Stockley, G. D. Sharp, S. A. Serati, and K. M. Johnson, “Analog optical phase modulator based on chiral smectic and polymer cholesteric liquid crystals,” Opt. Lett. 20(23), 2441–2443 (1995). [CrossRef] [PubMed]
  10. Z. Cao, L. Xuan, L. Hu, Y. Liu, and Q. Mu, “Effects of the space-bandwidth product on the liquid-crystal kinoform,” Opt. Express 13(14), 5186–5191 (2005). [CrossRef] [PubMed]
  11. A. K. Kirby and G. D. Love, “Fast, large and controllable phase modulation using dual frequency liquid crystals,” Opt. Express 12(7), 1470–1475 (2004). [CrossRef] [PubMed]
  12. G. D. Love, A. K. Kirby, and R. A. Ramsey, “Sub-millisecond, high stroke phase modulation using polymer network liquid crystals,” Opt. Express 18(7), 7384–7389 (2010). [CrossRef] [PubMed]
  13. V. Laude, “Twisted nematic liquid-crystal pixelated active lens,” Opt. Commun. 153(1-3), 134–152 (1998). [CrossRef]

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