Max Phase Chromium–Titanium–Aluminum Carbide for Ultrafast Laser Generation in the 1.55 μm Range

Pub Date : 2024-05-27 DOI:10.1007/s10946-024-10199-1
Ahmed Shakir Al-Hiti, Noor Alhuda Mohammed, Mahmood Nabeel, Nabaa Abdul Sattar
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Abstract

We formally generate picosecond laser pulses in an Erbium-doped fiber laser (EDFL) by incorporating a new type of a saturable absorber (SA) with Chromium–Titanium–Aluminum carbide (Cr2TiAlC2). The SA film is prepared by a casting method, using polyvinyl alcohol (PVA) as a host. The novel ultrafast laser operates at 1559.96 nm; the laser pump power range is 164 – 305 mW. Using a 90 : 10 output coupler, the designed laser produces a pulse duration of 2.04 ps and a repetition rate of 1.855 MHz. We obtain a maximum output power of 3.2 mW and a pulse energy of 1.72 nJ at a maximum laser pump power of 305 mW. To the best of our knowledge, this is the first time that a Cr2TiAlC2-based SA is used to produce ultrashort laser pulses.

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用于产生 1.55 μm 范围超快激光的最大相位铬钛铝碳化物
我们在掺铒光纤激光器(EDFL)中加入了一种新型的碳化铬钛铝(Cr2TiAlC2)可饱和吸收体(SA),从而正式产生了皮秒激光脉冲。这种可饱和吸收体薄膜是以聚乙烯醇(PVA)为载体,通过浇铸法制备而成的。新型超快激光器的工作波长为 1559.96 nm,激光泵浦功率范围为 164 - 305 mW。使用 90 : 10 输出耦合器,设计的激光器可产生 2.04 ps 的脉冲持续时间和 1.855 MHz 的重复频率。在最大激光泵浦功率为 305 mW 时,我们获得了 3.2 mW 的最大输出功率和 1.72 nJ 的脉冲能量。据我们所知,这是首次使用基于 Cr2TiAlC2 的 SA 产生超短激光脉冲。
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