Abstract: The present invention discloses a method for fabricating a heat-resistant, humidity-resistant oxide-confined vertical-cavity surface-emitting laser (VCSEL) by slowing down the oxidizing rate during a VCSEL oxidation process to thereby reduce stress concentration of an oxidation layer and by preventing moisture invasion using a passivation layer disposed on a laser window. The VCSEL device thus fabricated is heat-resistant, humidity-resistant, and highly reliable. In a preferred embodiment, the oxidation process takes place at an oxidizing rate of less than 0.4 ?m/min, and the passivation layer is a SiON passivation layer.

Abstract: An electromagnetic winding assembly includes first and second housing halves and first and second conductive units provided on the first and second housing halves, respectively. The first and second housing halves are detachably connected to each other so as to define cooperatively a core-receiving space therebetween and to connect electrically the first conductive unit with the second conductive unit such that the first conductive unit cooperates with the second conductive unit to form at least one coil-like electrical conductor configured to be wound around a core received in the core-receiving space.

Abstract: A system for testing electromagnetic characteristics of an electromagnetic steel sheet includes: a driving unit operable based on a non-sinusoidal wave control signal from a control unit and a floating voltage to output a control output; a power output unit operable based on the control output from the driving unit to output a voltage output at an output side coupled across a first winding wound around the electromagnetic steel sheet such that an exciting current flowing through the first winding is generated in response to the voltage output, thereby resulting in an induced voltage across a second winding wound around the electromagnetic steel sheet; and a measuring unit outputting to the control unit an output corresponding to the exciting current and the induced voltage measured thereby such that the control unit obtains the electromagnetic characteristics of the electromagnetic steel sheet based on the output.

Abstract: A dual wavelength laser device including a cap, a header, a first laser chip and a second laser chip. The cap includes a cap body and a lens embedded on the cap body. The header forms an accommodating space with the cap. The first laser chip is arranged in the accommodating space and emitting a first laser beam toward the lens. The second laser chip is arranged in the accommodating space and emitting a second laser beam toward the lens.

Abstract: A bi-directional optical device includes: a TO cap; a TO header defining a receiving space together with the TO cap; a laser chip provided on the TO header and in the receiving space; and a light-receiving chip provided on the TO header and in the receiving space. The TO cap has a cap body and a lens embeddedly mounted on the cap body. The laser chip emits a first laser beam toward the lens. The light-receiving chip faces the lens and receives a second laser beam transmitted through the lens. The laser chip and the light-receiving chip are packaged together within the receiving space defined by the TO cap and the TO header, so as to effectuate a bi-directional optical device for emitting and receiving light of different wavelengths.

Abstract: A triple wavelength bidirectional optical communication system includes an optical fiber, a transmitter optical subassembly and a receiver optical subassembly. The transmitter optical subassembly includes a first filter, a dual wavelength laser device and a first detector device. The dual wavelength laser device emits a first and a second laser beam to the optical fiber. The first detector device receives a third laser beam emitted from the optical fiber and propagated via the first filter. The receiver optical subassembly includes a second filter, a transceiver device and a second detector device. The transceiver device emits the third laser beam propagated via the second filter and reached to the optical fiber and also receives the first laser beam emitted from the optical fiber and propagated via the second filter. The second detector device receives the second laser beam emitted from the second facet and propagated via the second filter.

Abstract: An automobile sunshade assembly including a winding device including an axle assembly on which is wound a curtain having a rod at the outer edge, said rod being provided with a plurality of hooks, said axle assembly having a right end connected with a first bearing connected with a first wire element provided with a planar member and a left end formed with a slot connected with a left hook end of a spring, said axle assembly further having a second wire element provided with a horizontal portion having a stop at the right end and a planar member at the left end and a second bearing connected with the left end of said axle assembly and a sleeve, the stop of said axle assembly being engaged with the right hook end of said spring, a casing for receiving said axle assembly, a base tray for receiving said casing, four supporting brackets each provided on the top with a rotatable rod and a plurality of magnets on the bottom, and two bands each having a rod at both sides for engaging with doors of the automobile, wh