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This paper presents a compact silicon-photonic based optical cross connect (OXC) driven by the optical gradient force. Each switch element consists of a waveguide-crossing-coupled micro-ring resonator and a suspended arc. The device is fabricated with a standard CMOS compatible process using deep-UV 248-nm lithography with a double-etch technique. A switching time of 0.24 µs is experimentally demonstrated...
A novel optical switch driven by gradient optical force is demonstrated, allowing weak light to switch a strong one. The proposed optically controlled switch achieves an extinction ratio of 28 dB with ∼ns switching speed.
We report an SOI based 1×4 coarse wavelength-division-multiplexer (CWDM) planar concave grating multiplexer/demultiplexer and its application in re-configurable optical add/drop multiplexer (ROADM) system. We employed recursion numerical method to build a low aberration, non-circle grating circle model of concave grating. We fabricated the device using CMOS compatible silicon planar integration technology...
In this paper, an optical switch driven by the optical force is demonstrated based on Nanoelectromechanical system (NEMS) technology. The switch consists of a Mach-Zehnder interferometer (MZI) and a ring resonator. One of the MZI arms is suspended to enable optical switching by optical force induced displacement. The optical force is introduced by injecting a control light into the ring resonator...
In this paper, a Nano-opto-mechanical (NOM) switch is designed, simulated and experimentally demonstrated, using the electromagnetically induced transparency (EIT)-like effects of coupled-ring resonator. The control of the switch is realized by optical force between the silicon waveguide and the dielectric substrate. As the injection pump power increases from 0 to 6 mW, the normalized power of transmission...
We report a SOI based 1×4 coarse wavelength-division-multiplexer (CWDM) planar concave grating multiplexer/demultiplexer and applications in re-configuration optical add/drop multiplexer (ROADM) system. For design, we employed recursion numerical method to build a low aberration, non-circle grating circle model of concave grating. For experiment, CMOS compatible silicon planar integration technology...
We propose optical switches in which the heater is fabricated directly on the slab region of the rib waveguide. Two types of Heater-on-Slab (HoS) switches were investigated. In the first type, the silicon slab regions are doped highly to form the heaters. For this type of switches, the switching power is ~85 mW and the switching time is ~27 μs. In the second type, a strip of metal in direct contact...
This paper reports a compact silicon-based thermo-optic switch using photonic wire waveguides. The switch is constructed in Mach-Zehnder interferometer (MZI) configuration on a silicon substrate. The switching operation is achieved through thermo-optic effect. In the experiments, an extinction ratio about 25 dB at the wavelength of 1590 nm is obtained. The switching power is around 180 mW.
Optical switches are important for applications in optical communications and photonic integrated circuits (PICs) to allow for selection of optical paths. In this work, a thermo-optic switch based on a Mach-Zehnder interferometer (MZI) is designed. A comparison and optimization of the switch components, including beam splitters, couplers and MZI, is carried out. A 1 × 2 switch using silicon nitride...
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