Abstract
We theoretically analyzed the gain characteristics of an integrated semiconductor quantum dot (QD) fiber amplifier (SQDFA) by using a 2×2 tapered fiber coupler with a PbS QD-coated layer. The asymmetric structure of the fiber coupler is designed to have a maximum working bandwidth around 1550-nm band and provide a desired optical power ratio of the output signals. By using 600mW of 980-nm pump, 10dB gain of a 1550-nm signal is estimated with the gain efficiency of 4.5dB/cm.
Original language | English |
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Journal | Optical Fiber Technology |
Volume | 19 |
Issue number | 2 |
Pages (from-to) | 143-147 |
ISSN | 1068-5200 |
DOIs | |
Publication status | Published - 2013 |
Keywords
- PbS QD-coated layer
- Semiconductor quantum dot (QD) fiber amplifier