National Sun Yat-Sen University of Kaohsiung

Kwang-Yao Huang

Sheng-Lung Huang

Chia-Yao Lo

Hsiao-Wen Lee

Sheng-Pan Huang

Sun-Bin Yin

Shih-Yu Tu

Jian-Cheng Chen

Chiang-Yuan Chuang

Chien-Chih Lai

Yen-Sheng Lin

Ping-Hui Sophia Yeh

The present invention relates to a fiber having a core of crystal fiber doped with chromium and a glass cladding. The fiber has a gain bandwidth of more than 300 nm including 1.3 mm to 1.6 mm in optical communication, and can be used as light source, optical amplifier and tunable laser when being applied for optical fiber communication. The present invention also relates to a method of making the fiber. First, a chromium doped crystal fiber is grown by laser-heated pedestal growth (LHPG). Then, the crystal fiber is cladded with a glass cladding by codrawing laser-heated pedestal growth (CDLHPG). Because it is a high temperature manufacture process, the cladding manufactured by this method is denser than that by evaporation technique, and can endure relative high damage threshold power for the pumping light.

Fiber used in wideband amplified spontaneous emission light source and the method of making the same

A double-clad optical fiber fabrication method including the steps of: preparing a crystal fiber, inserting the crystal fiber into a silica capillary, attaching a sapphire tube to the periphery of the silica capillary, and applying a laser beam to the sapphire tube to increase the temperature of the sapphire tube and to further fuse the silica capillary with thermal radiation to have the fused silica capillary be wrapped about the crystal fiber, thereby forming the desired double-clad optical fiber.

Indirect heat type double-clad crystal fiber fabrication method

An optical amplifier includes an optical fiber having a core doped with transition metal ions, and at least one glass cladding enclosing the core. By using the fiber, the optical amplifier of the invention has a gain bandwidth of more than 300 nm including 1300-1600 nm band in low-loss optical communication.

Transition metal doped fiber amplifier

Growing community of inventors

Kaohsiung, Taiwan

Kwang-Yao Huang