Scholarlink

<p>We demonstrated a new type of metal-oxide heterostructures, Gallium-Doped Zinc Oxide (Ga: ZnO) as a saturable absorber (SA) for generating an ultrafast laser operating in the <i>1.56&#xa0;μm</i> region. A sonochemical approach was used to fabricate Ga: ZnO nanoparticles, which were then combined with polyvinyl alcohol (PVA) via an embedding method to form a thin film. To generate an ultrafast laser, Ga: ZnO PVA film was incorporated into the laser design between two FC/PC fiber ferrules using index-matching gel. The SA film generated a soliton ultrafast laser operating at 1560.65&#xa0;nm with a modulation depth of ~ 13% with a saturation intensity of 0.09&#xa0;MW/cm<sup>2</sup>. The pulse duration, repetition rate, average output power, and pulse energy of laser operation were 3 ps, 1.854&#xa0;MHz, 7.32 mW, and 3.94 nJ, respectively. This is the first time that Ga: ZnO PVA has been used in fiber laser applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Gallium-Doped Zinc Oxide nanoparticles as saturable absorber for ultrafast fiber laser operating 1560 nm

  • 期刊论文

  • 发表日期：

    2025年5月7日

查看全文
  • Ahmed Shakir Al-Hiti,
  • Noor Alhuda Mohammed,
  • Mahmood Nabeel,
  • Nabaa Abdul Sattar

摘要

We demonstrated a new type of metal-oxide heterostructures, Gallium-Doped Zinc Oxide (Ga: ZnO) as a saturable absorber (SA) for generating an ultrafast laser operating in the 1.56 μm region. A sonochemical approach was used to fabricate Ga: ZnO nanoparticles, which were then combined with polyvinyl alcohol (PVA) via an embedding method to form a thin film. To generate an ultrafast laser, Ga: ZnO PVA film was incorporated into the laser design between two FC/PC fiber ferrules using index-matching gel. The SA film generated a soliton ultrafast laser operating at 1560.65 nm with a modulation depth of ~ 13% with a saturation intensity of 0.09 MW/cm2. The pulse duration, repetition rate, average output power, and pulse energy of laser operation were 3 ps, 1.854 MHz, 7.32 mW, and 3.94 nJ, respectively. This is the first time that Ga: ZnO PVA has been used in fiber laser applications.