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Optical Engineering

Optical performance of Er3+/Yb3+ codoped core-cladding heterogeneous single-mode fiber amplifier
Author(s): D. L. Wang; W. H. Lei; Edwin Yue-Bun Pun; F. Song; H. Gong; H. Lin
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Paper Abstract

A high-concentration Er3+/Yb3+ codoped core-cladding heterogeneous single-mode phosphate fiber amplifier with a similar numerical aperture to the Corning SMF-28 standard single-mode optical fiber is described. Measurements and calculations are given for the device's optical absorption, strong infrared fluorescence, absorption, and emission cross-sections of Er3+, Judd-Ofelt parameters, and spontaneous transition probabilities of Er3+ in the core glasses. The relative gain (the signal enhancement) of a 5.8-cm-long fiber amplifier was measured to be 32.3 dB, and after compensating for both the propagation loss and the absorption loss, a maximum internal gain of 2.6 dB/cm at 1.535 µm was obtained, which reveals an available core-cladding heterogeneous design strategy in developing high-gain amplifier devices.

Paper Details

Date Published: 1 June 2010
PDF: 8 pages
Opt. Eng. 49(6) 065008 doi: 10.1117/1.3456620
Published in: Optical Engineering Volume 49, Issue 6
Show Author Affiliations
D. L. Wang, City Univ. of Hong Kong (Hong Kong, China)
W. H. Lei, Dalian Polytechnic Univ. (China)
Edwin Yue-Bun Pun, City Univ. of Hong Kong (Hong Kong, China)
F. Song, City Univ. of Hong Kong (Hong Kong, China)
H. Gong, City Univ. of Hong Kong (Hong Kong, China)
H. Lin, City Univ. of Hong Kong (Hong Kong, China)


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