In this paper, we utilized the ternary Mo_(1-x)W_xS₂ alloys to fabricate Mo_0.5W_0.5S₂ film, which serve as a ultrashort pulse mode-locker in erbium-doped all fiber lasers (EDFL). The modulation depth, saturable intensity and unsaturated loss of the film SA were 12%, 4.5 MW/cm² and 67.1% respectively. Stable self-mode-locking pulses could be achieved with a threshold pump power of 60 mW. With the increasing pump power, the pulse was centered at 1556.8 nm ~ 1558.1 nm with pulse width of 575 fs ~ 800 fs. The shortest pulse width, fundamental repetition rate and maximum pulse energy is 575 fs, 4.873 MHz, and 0.154 nJ, respectively. The signal to noise ratio (SNR) was measured to be about 53 dB. For the first time, we have experimentally demonstrated a mode-locked EDFL based on Mo_0.5W_0.5S₂ SA. To the best of our knowledge, this was the first realization of femtosecond photonics based on Mo_0.5W_0.5S₂ SAs. Our results suggest that Mo_0.5W_0.5S₂ SA is a promising candidate for mode-locked ultrafast fiber laser in optoelectronic and optical communications applications.

在本文中，我们利用三元 Mo _(1-x) W _x S ₂合金制造 Mo _0.5 W _0.5 S ₂薄膜，该薄膜用作掺铒全光纤激光器 (EDFL) 中的超短脉冲锁模器。薄膜SA的调制深度、饱和强度和不饱和损耗为12%，4.5 MW/cm ²和 67.1%。60 mW 的阈值泵浦功率可以实现稳定的自锁模脉冲。随着泵浦功率的增加，脉冲集中在 1556.8 nm ~ 1558.1 nm，脉冲宽度为 575 fs ~ 800 fs。最短脉冲宽度、基本重复频率和最大脉冲能量分别为 575 fs、4.873 MHz 和 0.154 nJ。测得的信噪比 (SNR) 约为 53 dB。我们首次通过实验证明了基于 Mo _0.5 W _0.5 S ₂ SA的锁模 EDFL 。据我们所知，这是基于 Mo _0.5 W _0.5 S ₂ SA的飞秒光子学的首次实现。我们的结果表明 Mo _0.5W _0.5 S ₂ SA 是光电和光通信应用中锁模超快光纤激光器的一个有前途的候选者。