Abstract: An adjustable micro-optoelectronic system supporting bidirectional transmission, an online upgrade, and online configuration. The system includes: a substrate; and edge connectors, a clock-and-data recovery (CDR) chip for transmitting, a CDR chip for receiving, a microprocessor, and an internal optical system, which are provided on the substrate. The edge connectors serve as an interface of a high-speed electrical signal, and are configured to exchange information between the micro-optoelectronic system and an external environment. The internal optical system is configured to transmit and receive an optical signal. A link for the high-speed electrical signal is connected among the edge connectors, the CDR chip for transmitting, the internal optical system, and the CDR chip for receiving. A communication connection is provided between the microprocessor and each of the edge connectors, the CDR chip for transmitting, the CDR chip for receiving, and the internal optical system.

Abstract: An adjustable micro-optoelectronic system supporting bidirectional transmission, an online upgrade, and online configuration. The system includes: a substrate; and edge connectors, a clock-and-data recovery (CDR) chip for transmitting, a CDR chip for receiving, a microprocessor, and an internal optical system, which are provided on the substrate. The edge connectors serve as an interface of a high-speed electrical signal, and are configured to exchange information between the micro-optoelectronic system and an external environment. The internal optical system is configured to transmit and receive an optical signal. A link for the high-speed electrical signal is connected among the edge connectors, the CDR chip for transmitting, the internal optical system, and the CDR chip for receiving. A communication connection is provided between the microprocessor and each of the edge connectors, the CDR chip for transmitting, the CDR chip for receiving, and the internal optical system.

Abstract: A single-fiber bidirectional optical transceiver subassembly, related to technology of optical communications, including an optical transmitting subassembly, an optical receiving subassembly and an optical splitting and filtering unit. The optical transmitting subassembly is coupled with an optical input port of the optical splitting and filtering unit. The optical receiving subassembly is coupled with an optical output port of the optical splitting and filtering unit. A bidirectional port of the optical splitting and filtering unit is coupled with a single-mode fiber. Each optical element in the optical transmitting subassembly, the optical receiving subassembly, and the optical splitting and filtering unit is a spatial optical element. Single-fiber bidirectional transmission is implemented with small channel spacing, by improving the optical splitting and filtering unit.

Abstract: A single-fiber bidirectional optical transceiver subassembly, related to technology of optical communications, including an optical transmitting subassembly, an optical receiving subassembly and an optical splitting and filtering unit. The optical transmitting subassembly is coupled with an optical input port of the optical splitting and filtering unit. The optical receiving subassembly is coupled with an optical output port of the optical splitting and filtering unit. A bidirectional port of the optical splitting and filtering unit is coupled with a single-mode fiber. Each optical element in the optical transmitting subassembly, the optical receiving subassembly, and the optical splitting and filtering unit is a spatial optical element. Single-fiber bidirectional transmission is implemented with small channel spacing, by improving the optical splitting and filtering unit.

Abstract: System and method for a USB host to determine whether or not a USB device provides power via a USB coupling between the USB host and the USB device. At a first time, it may be determined that the USB device is coupled to the USB host via a USB coupling and does not provide power. Power may be provided to the USB device via the USB coupling. At a second time it may be determined that the USB device does provide power via the USB coupling. Power may no longer be provided to the USB device via the USB coupling after it is determined that the USB device does provide power via the USB coupling. A battery of the USB host may be charged using power provided by the USB device via the USB coupling based on determining that the USB device does provide power via the USB coupling.

Abstract: System and method for a USB host to determine whether or not a USB device provides power via a USB coupling between the USB host and the USB device. At a first time, it may be determined that the USB device is coupled to the USB host via a USB coupling and does not provide power. Power may be provided to the USB device via the USB coupling. At a second time it may be determined that the USB device does provide power via the USB coupling. Power may no longer be provided to the USB device via the USB coupling after it is determined that the USB device does provide power via the USB coupling. A battery of the USB host may be charged using power provided by the USB device via the USB coupling based on determining that the USB device does provide power via the USB coupling.