Fabrication of coupled mode photonic devices in glass by nonlinear femtosecond laser materials processing
作者： Kaoru Minoshima , Andrew Kowalevicz , Erich Ippen , James Fujimoto
DOI: 10.1364/OE.10.000645
关键词: Waveguide (optics) 、 Power dividers and directional couplers 、 Laser 、 Femtosecond 、 Photonics 、 Optoelectronics 、 Coupled mode theory 、 Laser power scaling 、 Optics 、 Amplifier 、 Materials science
摘要: Coupled mode devices are fabricated in transparent glasses by nonlinear materials processing with femtosecond laser pulses. Using the direct output of an extended cavity laser, without need for a amplifier, single waveguides can be rapidly well controlled parameters. A variety photonic waveguide demonstrated. Directional couplers various interaction lengths and coupling coefficients their properties characterized. Measurements demonstrate coupled behavior consistent theory. An unbalanced Mach-Zehnder interferometer is also demonstrated as spectral filter.
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