本論文研製兩個1064波段波長可調光纖雷射光源，達一定的輸出功率和訊雜比與窄3 dB頻寬的感測光源，利用自製的波長可調光纖光柵，製作波長可調雷射，並利用光纖光柵波長飄移特性做為感測系統，感測應力應變與水溫量測。本實驗選取38 cm摻鐿光纖與後向泵激架構組成環形摻鐿光纖雷射，其斜率效率為8.24%，閥值功率為43.58 mW，而在100 mW的泵激光源下，輸出功率為2.15 dBm。置於室溫六小時功率變動量為±0.095 dB，波長變動量為±0.007 nm，其波長可調性為11.24 nm，並以此光源作為應力應變與水溫量測的感測系統，應力應變將軸向應力平台移動0.5 mm，光纖光柵受到拉伸力之波長總飄移量為1.38 nm，線性度為0.9874；光纖光柵受到擠壓力之波長總飄移量為1.47 nm，線性度為0.9889，水溫感測範圍由25℃到50℃，波長總飄移量為0.16 nm，線性度為0.9973。
其次，利用半導體光放大器為光源，建置與環形摻鐿光纖雷射相同波段的環形半導體光放大器光纖雷射，接著利用半導體光放大器取代摻鐿光纖，與環形摻鐿雷射作兩者間特性的比較，並量測其特性作為感測系統之光源，結果顯示置於室溫下六小時功率變動量為±0.115 dB，波長變動量為±0.006 nm。另外，利用波長可調光纖光柵，其波長可調性為10.68 nm，並以此光源作為應力應變與水溫量測的感測系統，應力應變將軸向應力平台移動0.5 mm，光纖光柵受到拉伸力之波長總飄移量為1.37 nm，線性度為0.9812；光纖光柵受到擠壓力之波長總飄移量為1.32 nm，線性度為0.9874，水溫感測範圍由25℃到50℃，波長總飄移量為0.15 nm，線性度為0.9953。由以上數據可得知，光纖光柵之波長飄移會隨著軸向應力變化與水溫變化呈線性趨勢，所以在這些感測方面我們可以利用波長飄移作為感測之依據，使其感測光源有多方面選擇。

In this thesis, there are two kinds of tunable-wavelength fiber lasers with high output power, high signal-to-noise ratio, high slope efficiency and narrow 3 dB bandwidth. The fiber lasers have been developed to sense the changing of the water temperature and the strain by using the fiber Bragg grating. We chose the 38 centimeters long Ytterbium-doped fiber (YDF) as the gain medium to compose a 1064 nm fiber-ring laser with a backward pumping method. The results show that its slope efficiency and threshold power are 8.24% and 43.58 mW, respectively with a 100 mW pumping power, which could also generate 2.15 dBm output power. The changing of the power and wavelength are ±0.095 dB and ±0.007 nm after the laser has been placed under room temperature for six hours; while the wavelength-tuning range is 11.24 nm. It is observed that the total shift of the grating is 1.38 nm and 1.47 nm with a linearity of 0.9874 and 0.9889; while it is stretched and pressed by a platform. As to the changing temperature from 25℃ to 50℃, the shift of the wavelength is 0.16 nm with a linearity of 0.9973.
In another part of this thesis, the semiconductor optical amplifier (SOA) is used as the light source to construct a 1064 nm ring cavity semiconductor optical amplifier fiber laser. We measure the characteristics and replace the YDFL with the SOA to sense the changing of the water temperature and the strain. The results indicate that the power variation is ±0.115 dB and the wavelength variation is ±0.006 nm after the SOA has been placed under room temperature for six hours; while wavelength-tuning range is 10.68 nm. It is observed that the total shift of the grating is 1.37 nm and 1.32 nm with a linearity of 0.9812 and 0.9874, while it’s stretched and pressed by a platform. As to the changing temperature from 25℃ to 50℃, the shift of the wavelength is 0.15 nm with a linearity of 0.9953. According to these results, the wavelength shift of the fiber Bragg grating is linear to the changing of the axis stress and the water temperature; therefore, there are many choices of the sensing light source.

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