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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 8 — Mar. 10, 2005
  • pp: 1469–1473

Reflowed solgel spherical microlens for high-efficiency optical coupling between a laser diode and a single-mode fiber

Miao He, Xiaocong Yuan, Jing Bu, Wai Chye Cheong, and Ken Jin Moh  »View Author Affiliations


Applied Optics, Vol. 44, Issue 8, pp. 1469-1473 (2005)
http://dx.doi.org/10.1364/AO.44.001469


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Abstract

To improve the coupling efficiency between a laser diode and a single-mode fiber, we propose a two-microlens coupling scheme that uses two solgel spherical microlenses for high coupling efficiency. The conventional reflow technique was employed and extended to the inorganic–organic hybrid SiO2/ZrO2 solgel material to form the microlenses. Preliminary results show that the coupling efficiency was increased to −1.28 dB (74.5%) by the proposed scheme, compared with a coupling efficiency of −10.13 dB (9.7%) by the butt-joint method. The proposed fabrication technique demonstrates that use of a reflowed solgel spherical microlens is a cost-effective mass-production approach to application of micro-optical elements in optical communication.

© 2005 Optical Society of America

OCIS Codes
(160.4670) Materials : Optical materials
(220.4000) Optical design and fabrication : Microstructure fabrication

History
Original Manuscript: April 22, 2004
Revised Manuscript: October 14, 2004
Manuscript Accepted: October 20, 2004
Published: March 10, 2005

Citation
Miao He, Xiaocong Yuan, Jing Bu, Wai Chye Cheong, and Ken Jin Moh, "Reflowed solgel spherical microlens for high-efficiency optical coupling between a laser diode and a single-mode fiber," Appl. Opt. 44, 1469-1473 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-8-1469


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