Erbium-doped photonic crystal fibers (EDPCFs) are used to improve the output power and mean wavelength stability of the superfluorescent fiber source (SFS) instead of common erbium-doped fiber. Fiber length and pump power are both optimized at a large temperature range from -45 ℃ to 70 ℃ . An interpolatefitting method is used to optimize the pump power efficiently and precisely when the fiber length is optimized firstly. From -45℃ to 70℃ , the mean wavelength variation of the SFS is 0.67 × 10-6 /℃ , and the output power variation is 0.37%.