| Summary: | 碩士 === 國立交通大學 === 光電工程系所 === 92 === Fiber optical amplifier (the source power of the fiber ring laser) can extend the operation range from C band (1530nm ~ 1560nm) to L band (1560nm ~ 1610nm) or S band (1480nm ~ 1530nm). The conventional method tunes the output wavelength by using the single fiber filter, like a Fabry-Perot filter or tunable band-pass filter. In this essay, we bring up three new structures for those disadvantages, a wavelength-stable structure by Fabry-Perot laser diode, a wide-band tuning one by double filters, and another for S band wavelength output. By integrating the three structures, the new fiber ring laser system can tune at least 130nm (1480nm ~ 1610nm) and keep the wavelength stable more than 2000 seconds. It will be helpful to apply the new fiber ring laser in communication systems.
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