- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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Spatial-mode switchable, multi-wavelength all-fiber erbium-doped fiber (EDF) laser based on low modal crosstalk mode multiplexer/demultiplexer (MUX/DEMUX)
摘要： We experimentally demonstrate an all-fiber erbium-doped fiber ring laser based on a Sagnac interferometer with a low modal crosstalk mode multiplexer/demultiplexer (MUX/DEMUX). Three linearly polarized (LP) modes are generated by mode MUX/DEMUX, which consists of cascaded mode-selective couplers. The proposed fiber laser can simultaneously achieve spatial-mode switching and multi-wavelength tuning. In the experiment, single-, dual-, and triple-wavelength lasing outputs for LP01, LP11, LP21 and hybrid modes are obtained. The stabilities for LP01, LP11, LP21 and hybrid modes are investigated in more than 20 min, 16 min, 12 min and 16 min, respectively. Moreover, the mode intensity profiles, the OSNRs of the lasing output and the slope efficiencies are also measured.
关键词： multi-wavelength fiber laser,mode multiplexer/demultiplexer (MUX/DEMUX),spatial-mode switching,Sagnac interferometer
更新于2025-11-28 14:23:57
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Broadband Mode Multiplexer Formed with Non-planar Tapered Directional Couplers
摘要： We propose a broadband mode multiplexer based on the structure of cascaded planar and non-planar tapered directional couplers (DCs), which are designed for processing vertically symmetric and anti-symmetric modes. The DCs are tapered to widen the operating bandwidth, reduce the polarization dependence, and improve the fabrication tolerance. As an example, we design and fabricate a five-mode (de)multiplexer with polymer material to combine or separate the E11, E12, E21, E31, and E22 modes. Our typical fabricated device has a length of 2.1 cm and shows the mode coupling efficiency of almost larger than 94.5% for each DC over the C + L band with weak polarization dependence. The proposed structure is scalable and can be implemented with different material platforms.
关键词： mode multiplexer,Mode-division multiplexing,tapered waveguide,directional coupler,polymer waveguide
更新于2025-09-23 15:22:29
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[IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Two-mode multiplexer based on the multilayer Si-SiN platform for 2μm waveband
摘要： We experimentally demonstrated a two-mode multiplexer in the multi-layer Si-SiN platform for 2um waveband. The insertion loss of the mode multiplexer link is less than 2.2 dB across the wavelength 1945 nm-1985 nm.
关键词： Mode Multiplexer,Mid Infra-red,2um waveband,Silicon Photonics
更新于2025-09-16 10:30:52