Abstract: An optical and/or optoelectrical transceiver and system are disclosed that enable parallel transmission of data and management signals via an optical fiber without affecting data signal transmissions transmitted on the optical fiber. Furthermore, the present transceiver and system provide a fault diagnosis function for an optical fiber link. The transceiver and system generally comprise an interface, an intersecting transmission management unit, a driver, a management signal driving unit, an optical transmitter, an optical receiver, an amplifier, a management signal recovery unit, a management unit, and optionally, a power supply unit.

Abstract: The disclosure relates to a fast, stable method of output wavelength control in a DWDM optical device, and a circuit configured to perform the method. The method and circuit can control timing and overshoot during conditions of rapid operational changes, such as during power-on or restart of the device. The method and circuit includes optimized APC, TEC and electro-absorption (EA) modulator control hardware and algorithms, to effectively control transient processes. Software and circuitry based on the method(s) are achieved in part by optimizing APC, EA and TEC control algorithms. In combination with hardware/circuit optimization, one can achieve fast turn-on of an optical output signal at a stable wavelength. The method and circuit provides a stable power-up process in which a change of wavelength is small enough to meet DWDM specification requirements, to ensure the elimination and avoidance of crosstalk in adjacent channels in dense wave (sub)systems.

Abstract: Methods and apparatuses for adhering optoelectronic components in optical, electronic or optoelectronic devices are disclosed. A UV-active adhesive is applied to an alignment sensitive component of the device. A first, relatively low dose of UV radiation sufficient to solidify an outer layer of the adhesive is applied to the adhesive. A second, relatively high dose of UV radiation sufficient to solidify the remaining thickness of the adhesive is then applied. The methods and apparatuses of the present invention advantageously reduce or eliminate changes in the position of a component during the adhesive curing process. The present method and apparatus allow for shorter total time for solidifying the adhesive, provide stable positioning during the adhesive solidification process, and enable increased manufacturing output and decreased waste.

Abstract: A virtual mask system includes a stage configured to retain an object, an image-capturing device configured to capture the image of the field of view of the microscope, and a processing module configured to generate a virtual mask and superimpose the virtual mask with the image of the object. In one embodiment of the present invention, a method for operating a virtual mask system includes the steps of generating a virtual mask, placing a first object on a stage, capturing at least one image of the first object, and superimposing the virtual mask with the image of the first object by adjusting a position or an inclined angle of the stage or adjusting a capturing position of an image-capturing device by considering at least the virtual mask and the image of the first object.

Abstract: An optical transceiver module includes an optical-to-electrical converter configured to convert a first optical signal to a first electric signal, a first amplifier configured to amplify the first electric signal, a bandwidth controller coupled to the first amplifier, configured to control the frequency response characteristics of the amplification of the first amplifier to produce a first amplified electric signal, a driver circuit configured to receive a second electric signal and to produce a second amplified electric signal in response to the second electric signal and an optical feedback signal, an electrical-to-optical converter coupled to the micro-controller and configured to convert the second amplified electrical signal to a second optical signal, and a photo diode configured to detect the second optical signal and to produce the optical feedback signal to be received by the driver circuit.