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Side-polished fiber based gain-flattening filter for erbium doped fiber amplifiers

✍ Scribed by R.K. Varshney; A. Singh; K. Pande; B.P. Pal

Book ID
103872927
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
209 KB
Volume
271
Category
Article
ISSN
0030-4018

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✦ Synopsis

A simple and accurate novel normal mode analysis has been developed to take into account the effect of the non-uniform depth of polishing in the study of the transmission characteristics of optical waveguide devices based on loading of a side-polished fiber half-coupler with a multimode planar waveguide. We apply the same to design and fabricate a gain-flattening filter suitable for fiber amplifiers. The wavelength dependent filtering action of the overall device could demonstrate flattening of an EDFA gain spectrum within Β±0.7 dB over a bandwidth of 30 nm in the C-band. Results obtained by the present analysis agree very well with our experimental results. This present analysis should be very useful in the accurate design and analysis of any SPF-MMOW device/component including side-polished fiber based sensors.

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A dynamically gain-flattened erbium-dope
A dynamically gain-flattened erbium-doped fiber amplifier
✍ Z. G. Lu; P. Lin; C. P. Grover πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 196 KB

## Abstract This paper reports on dynamically gain‐flattened C‐ and L‐band erbium‐doped fiber amplifiers (DGF‐EDFAs), whose dynamic gain ranges are above 20 dB and 24 dB, respectively. This paper gives the detailed test and comparative results for DGF‐EDFAs based on the use of a voltage‐controlled