论文信息 - 4$\,\times\,$4 InAlGaAs/InAlAs Optical-Switch Fabric by Cascading Mach–Zehnder Interferometer-Type Optical Switches With Low-Power and Low-Polarization-Dependent Operation

4$\,\times\,$4 InAlGaAs/InAlAs Optical-Switch Fabric by Cascading Mach–Zehnder Interferometer-Type Optical Switches With Low-Power and Low-Polarization-Dependent Operation

High-speed optical switches are essential devices to construct next-generation optical networks. We have studied 22 InAlGaAs/InAlAs hybrid-waveguide-type Mach-Zehnder interferometer-type optical switches and demonstrated low-polarization-dependent switching operation with crosstalks of less than , injection currents of about 5 mA, and response times of about 3 ns. In this letter, our conventional 22 optical switch was extended to a 44 optical-switch fabric by a cascading approach. As a result, fundamental switching operation was confirmed with low power consumption and low polarization dependence.

[2] Roshan Thapliya,et al. High Speed Electro-Optic Polymeric Waveguide Devices With Low Switching Voltages and Thermal Drift , 2008, OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference.

[3] Siyuan Yu,et al. Experimental characteristics of optical crosspoint switch matrix and its applications in optical packet switching , 2006, Journal of Lightwave Technology.

[5] T. Kitatani,et al. Very-Low-Current and High-Speed Switching Operation of InAlGaAs/InAlAs/InP Mach-Zehnder Interferometer-Type Photonic Switch , 2008 .

[6] S. Forrest,et al. Compact polarization-insensitive InGaAsP-InP 2 × 2 optical switch , 2005, IEEE Photonics Technology Letters.

[7] Keiichi Nashimoto,et al. PLZT Waveguide Devices for High Speed Switching and Filtering , 2008, OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference.

[8] S. Fujimoto,et al. Polarization-Independent Low-Crosstalk Operation of InAlGaAs–InAlAs Mach–Zehnder Interferometer-Type Photonic Switch With Hybrid Waveguide Structure , 2009, IEEE Photonics Technology Letters.

[9] H. Takahashi,et al. Silica-based PLC Type 32 x 32 Optical Matrix Switch , 2006, 2006 European Conference on Optical Communications.

[10] M. Okuno,et al. Polarization-Insensitive Operation of Lithium Niobate Mach–Zehnder Interferometer With Silica PLC-Based Polarization Diversity Circuit , 2008, IEEE Photonics Technology Letters.