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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 8, Iss. 3 — Sep. 25, 2004
  • pp: 127–131

Femtosecond Micromachining Applications for Optical Devices

Ik-Bu Sohn, Man-Seop Lee, and Jeong-Sik Woo  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 8, Issue 3, pp. 127-131 (2004)


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Abstract

This paper investigates applications of femtosecond lasers for the micromachining of transparent materials and fabrication of optical devices. We show commercial micromachining examples of transparent materials which have been fabricated for various applications. Near infrared femtosecond laser processing is an attractive method to fabricate three-dimensional optical waveguides into various transparent materials. Focused femtosecond laser pulses induce a permanent refractive-index change only near the focal point. We also demonstrate a Y coupler with the splitting ratio of 1:1 written by femtosecond laser pulses into a fused silica glass. The minimum propagation loss of 0.8 ㏈/㎝ awl the refractive-index change of 0.006-0.01 at the wavelength of 1550 ㎚ were achieved by optimization of the laser fluence.

© 2004 Optical Society of Korea

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(220.4610) Optical design and fabrication : Optical fabrication
(230.1360) Optical devices : Beam splitters
(230.7370) Optical devices : Waveguides

History
Original Manuscript: April 28, 2004
Published: September 1, 2004

Citation
Ik-Bu Sohn, Man-Seop Lee, and Jeong-Sik Woo, "Femtosecond Micromachining Applications for Optical Devices," J. Opt. Soc. Korea 8, 127-131 (2004)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-8-3-127


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References

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