Abstract: An optical beam splitter includes a multi-stage nested network of waveguide bifurcation branches, which includes: first-stage waveguide bifurcation branches each including a pair of first-stage waveguide segments, and second-stage waveguide bifurcation branches each including a pair of second-stage waveguide segments. Each pair of first-stage waveguide segments includes a first common end and a pair of first split ends and a pair of first interconnection portions. Each first common end points toward a first widthwise direction. Each pair of second-stage waveguide segments includes a second common end and a pair of second split ends and a pair of second interconnection portions. Each second common end and each second split end of the optical beam splitter point toward a second widthwise direction which is an opposite direction of the first widthwise direction.

Abstract: An embodiment photonic device may include a first terminal including silicon and a second terminal including polysilicon. The first terminal may be configured as a first three-dimensional structure extending along a first direction and having a first U-shaped portion in a first cross-sectional plane perpendicular to the first direction. Similarly, the second terminal may be configured as a second three-dimensional structure extending along the first direction and having a second U-shaped portion in the first cross-sectional plane. The photonic device may further include a capacitor dielectric layer disposed between the first terminal and the second terminal and a cladding dielectric layer surrounding the first terminal and the second terminal. The first U-shaped portion and the second U-shaped portion may be arranged in an interlocking configuration having an overlapping region that is configured as an optical transmission line in which the first direction is an optical propagation direction.

Abstract: An optical beam splitter includes a multi-stage nested network of waveguide bifurcation branches, which includes: first-stage waveguide bifurcation branches each including a pair of first-stage waveguide segments, and second-stage waveguide bifurcation branches each including a pair of second-stage waveguide segments. Each pair of first-stage waveguide segments includes a first common end and a pair of first split ends and a pair of first interconnection portions. Each first common end points toward a first widthwise direction. Each pair of second-stage waveguide segments includes a second common end and a pair of second split ends and a pair of second interconnection portions. Each second common end and each second split end of the optical beam splitter point toward a second widthwise direction which is an opposite direction of the first widthwise direction.

Abstract: An embodiment photonic device may include a first terminal including silicon and a second terminal including polysilicon. The first terminal may be configured as a first three-dimensional structure extending along a first direction and having a first U-shaped portion in a first cross-sectional plane perpendicular to the first direction. Similarly, the second terminal may be configured as a second three-dimensional structure extending along the first direction and having a second U-shaped portion in the first cross-sectional plane. The photonic device may further include a capacitor dielectric layer disposed between the first terminal and the second terminal and a cladding dielectric layer surrounding the first terminal and the second terminal. The first U-shaped portion and the second U-shaped portion may be arranged in an interlocking configuration having an overlapping region that is configured as an optical transmission line in which the first direction is an optical propagation direction.

Abstract: An optical device and method of manufacture is presented. In embodiments a method includes forming a first layer of optical material, patterning the first layer into a stair-step pattern, depositing a dielectric material onto the stair-step pattern, and forming a second layer of optical material over the dielectric material and at least partially within the stair-step pattern.

Abstract: An optical device and methods of manufacturing such optical devices are presented. In embodiments the optical device is a tunable beam splitter which is made by forming a first dopant region over a substrate, the first dopant region comprising a first waveguide and a second waveguide, depositing a cladding material over the first waveguide and the second waveguide, and forming a second dopant region overlying the first waveguide and the second waveguide, wherein the forming the second dopant region comprises forming a first region extending over both the first waveguide and the second waveguide, the first region having a constant concentration of a first dopant.

Abstract: An embodiment photonic device may include a first terminal including silicon and a second terminal including polysilicon. The first terminal may be configured as a first three-dimensional structure extending along a first direction and having a first U-shaped portion in a first cross-sectional plane perpendicular to the first direction. Similarly, the second terminal may be configured as a second three-dimensional structure extending along the first direction and having a second U-shaped portion in the first cross-sectional plane. The photonic device may further include a capacitor dielectric layer disposed between the first terminal and the second terminal and a cladding dielectric layer surrounding the first terminal and the second terminal. The first U-shaped portion and the second U-shaped portion may be arranged in an interlocking configuration having an overlapping region that is configured as an optical transmission line in which the first direction is an optical propagation direction.

Abstract: An optical beam splitter includes a multi-stage nested network of waveguide bifurcation branches, which includes: first-stage waveguide bifurcation branches each including a pair of first-stage waveguide segments, and second-stage waveguide bifurcation branches each including a pair of second-stage waveguide segments. Each pair of first-stage waveguide segments includes a first common end and a pair of first split ends and a pair of first interconnection portions. Each first common end points toward a first widthwise direction. Each pair of second-stage waveguide segments includes a second common end and a pair of second split ends and a pair of second interconnection portions. Each second common end and each second split end of the optical beam splitter point toward a second widthwise direction which is an opposite direction of the first widthwise direction.

Abstract: An optical device and method of manufacture is presented. In embodiments a method includes forming a first layer of optical material, patterning the first layer into a stair-step pattern, depositing a dielectric material onto the stair-step pattern, and forming a second layer of optical material over the dielectric material and at least partially within the stair-step pattern.

Abstract: An optical device and methods of manufacturing such optical devices are presented. In embodiments the optical device is a tunable beam splitter which is made by forming a first dopant region over a substrate, the first dopant region comprising a first waveguide and a second waveguide, depositing a cladding material over the first waveguide and the second waveguide, and forming a second dopant region overlying the first waveguide and the second waveguide, wherein the forming the second dopant region comprises forming a first region extending over both the first waveguide and the second waveguide, the first region having a constant concentration of a first dopant.

Abstract: A dual Subscriber Identity Module (SIM) transmission method is provided. The dual SIM transmission method may include the following steps. A first SIM of an apparatus may perform a first service from a first serving cell. Then, a processor of the apparatus may determine whether the apparatus needs to be switched to a dual SIM dual active (DSDA) mode in response to a second SIM of the apparatus requiring a second service while the first SIM is performing the first service. In response to determining that the apparatus needs to be switched to the DSDA mode, the processor may select a target cell to make the apparatus support the DSDA mode.

Abstract: A discontinuous transmission (DTX) information transmission method is provided. The DTX information transmission method may include the following steps. A processor of an apparatus may determine whether to enter a DTX mode. A transceiver of the apparatus may transmit DTX information to a network node in response to determining to enter the DTX mode.

Abstract: A discontinuous transmission (DTX) information transmission method is provided. The DTX information transmission method may include the following steps. A processor of an apparatus may determine whether to enter a DTX mode. A transceiver of the apparatus may transmit DTX information to a network node in response to determining to enter the DTX mode.

Abstract: A mobile communication device and method including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.

Abstract: A mobile communication device and method including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.

Abstract: A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.

Abstract: A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.

Abstract: A window assembly for a vehicle has a transparent layer including a metal compound such that the transparent layer is electrically conductive. The transparent layer defines an area covering the window assembly. An outer region which is electrically non-conductive surrounds the area. The window assembly includes an antenna element including wire or transparent coating which overlaps the transparent layer and overlaps the outer region. The antenna element is configured to receive linearly or circularly polarized radio frequency (RF) signals. A feeding element is coupled to the antenna element for energizing the antenna element. The antenna element is capacitively coupled to the transparent layer. The transparent layer operates as a parasitic or active antenna element with respect to the antenna element.

Abstract: A window assembly for a vehicle has a transparent layer including a metal compound such that the transparent layer as is electrically conductive. The transparent layer defines an area covering the window assembly. An outer region which is electrically non-conductive surrounds the area. The window assembly includes an antenna element including wire or transparent coating disposed within and surrounded by the outer region without extending into the transparent layer. The antenna element is electrically disconnected from the transparent layer such that the antenna element operates independent of the transparent layer. A feeding element is coupled to the antenna element for energizing the antenna element. The feeding element is electrically disconnected from the transparent layer such that the feeding element energizes the antenna element independent of the transparent layer.