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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 13 — Jun. 23, 2008
  • pp: 9844–9849

A semi-weakly confined erbium-doped waveguide amplifier with double-layered buffer/cladding

Hengsheng Tang, Yigang Li, Yanwu Zhang, Yingfeng Li, Hao Li, Xin Tu, Xiang Wu, Liying Liu, and Lei Xu  »View Author Affiliations


Optics Express, Vol. 16, Issue 13, pp. 9844-9849 (2008)
http://dx.doi.org/10.1364/OE.16.009844


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Abstract

A semi-weakly confined waveguide structure was designed and fabricated. This waveguide structure has a 350 nm thin core layer. Its optical mode field is weakly confined in vertical direction but is strongly confined laterally. The waveguide can support a nearly circular optical field distribution that matches well with a single-mode fiber. An erbium-doped waveguide amplifier (EDWA) with the new waveguide structure was fabricated by sol-gel method. The EDWA has a passive core and double-layered buffer/cladding. A small coupling loss of 0.4 dB/facet and an internal gain of 1.9 dB via evanescent wave amplification near 1550 nm were obtained.

© 2008 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.7370) Optical devices : Waveguides
(350.3950) Other areas of optics : Micro-optics
(230.4480) Optical devices : Optical amplifiers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 9, 2008
Revised Manuscript: June 4, 2008
Manuscript Accepted: June 9, 2008
Published: June 19, 2008

Citation
Hengsheng Tang, Yigang Li, Yanwu Zhang, Yingfeng Li, Hao Li, Xin Tu, Xiang Wu, Liying Liu, and Lei Xu, "A semi-weakly confined erbium-doped waveguide amplifier with double-layered buffer/cladding," Opt. Express 16, 9844-9849 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-13-9844


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