Abstract: The present invention relates to a module for parallel transmission and reception of an optical signals, and particularly a miniaturized module with a fixed optical coupler and a detachable electric connector is disclosed. A miniaturized optical signal transmission module according to the present invention comprises an electrical connector for coupling electric signals to a circuit board; an array of optical devices coupled to metal leads, the array of optical devices converting between optical signals and the electric signals; an optical fiber array block fixedly and optically coupled to the array of optical devices for transmitting the optical signals, wherein the metal leads are detachably coupled to the electrical connector part. The optical module can be miniaturized so that the entire system can be miniaturized. Accordingly, many advantages according to the miniaturization of the entire system can be obtained.

Abstract: A minimum frequency generator of a transceiver system is presented. In a transmitter presented with K bits of parallel data, if a flip condition is determined and selected ones of the K bits are flipped, then the flip condition is signaled in a separately transmitted clock signal. The flip condition can be that all K bits are one or zero. Additionally, the clock signal can indicated whether bits are flipped or not by adjusting the duty cycle of the clock signal.

Abstract: An optical transmitter/receiver unit having an optical connector with an optical device array block and a multi channel optical fiber block is presented. The optical device array block includes at least one optical device for converting an electric signal to an optical signal or for converting an optical signal to an electrical signal. The optical devices is mounted on a silicon optical bench having a series of grooves for inserting, attaching and aligning each optical device. The optical device array block can be optically coupled to a multi channel optical fiber block that includes at least one optical fiber for transmitting an optical signal, the optical fiber being mounted in V-shaped grooves on a silicon V block. The V-shaped grooves on the V-block and the mounting grooves on the silicon optical bench allow for accurate alignment of each optical fiber with corresponding optical devices.

Abstract: An optical connector capable of precisely aligning optical fibers with optical devices in a passive fashion is presented. The connector includes a fiber block and a device module. The fiber block can receive optical fibers and where the cores of the optical fibers are positioned in V-grooves. The device module receives optical devices in inserts formed in the device module such that electrical connections can be accomplished between electrical leads formed in the device module and the optical devices. The fiber block and the device module include complementary alignment mechanisms so that a precise alignment of the optical fibers with the optical devices can be accomplished. In some embodiments, the complementary alignment mechanism can be alignment holes and corresponding pins formed in the fiber block and device module. In some embodiments, a cover latched on the device module includes springs which hold the fiber block firmly in place in the device module.

Abstract: A multi-channel optical connector that includes a multi channel optical fiber block including at least one optical fiber capable of being optically coupled to at least one optical device. The multi-channel optical fiber block is incorporated in a plastic molding that is complimentary in shape to that of an optical device array block, and thus can be plugged into the optical device array block. The close tolerances maintained in manufacturing of the connector results in accurate alignment of the fibers captured in the multi-channel optical fiber block with the optical devices in the optical device array block. The close tolerances can be achieved by using MEMS (Micro Electro Mechanical System) processing techniques to manufacture the V-grooves in a silicon V-block, which is part of the multi-channel optical fiber block. Alternatively, V-grooves can be produced in the multi-channel optical fiber block by plastic molding.