A Switchable Multi-wavelength Erbium-Doped Photonic Crystal Fiber Laser with Linear Cavity Configuration

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（12）
• 页码范围: 86-88
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/12/124204

摘要

A switchable multi-wavelength erbium-doped photonic crystal fiber laser with a linear cavity configuration based on a Sagnac loop mirror is proposed and demonstrated experimentally.The laser is based on saturated spectral hole burning and the polarization hole burning effects can be switched among single-wavelength,dual-wavelength,triple-wavelength and quadruple-wavelength outputs at room temperature.The wavelength period of the output spectrum is easily varied by using polarization maintaining fibers of different lengths.The proposed fiber laser has a signal-to-noise ratio of higher than 30dB and achieves a low threshold power of 37mW.The power fluctuations of the lasing lines are less than 0.54dB,1.7dB and 2.9dB when the laser operates at single-wavelength,dualwavelength and triple-wavelength for one hour.