Patent application number | Description | Published |
20090092362 | OPTICAL MODULE PROVIDING A SLEEVE BURYING A TUBULAR MEMBER - An optical module with a sleeve assembly is disclosed. The sleeve assembly, which receives a ferrule secured in an end of the optical connector and is primarily made of resin material, provides a buried member made of a material, typically meal, having a polygonal cross section, a linear thermal expansion coefficient less than that of the resin material and a Young's Modulus greater than that of the resin material. The bore of the sleeve assembly has a deformed circular shape with a first diameter less than the outer diameter of the ferrule. | 04-09-2009 |
20100232750 | OPTICAL SUBASSEMBLY IMPLEMENTING SLEEVE AND OPTICAL DEVICE WITH TRANSPARENT RESIN PACKAGE - An optical subassembly is disclosed, in which an optical device is assembled with an optical receptacle using an anchor effect for the ultraviolet curable resin. The optical receptacle includes a sleeve portion that receives an external optical fiber and a sheath portion that receives the optical device. A bore formed in the sheath portion circumferentially provides a plurality of ribs; while the pillar portion of the optical device that encloses a semiconductor optical device provides a plurality of hollows in positions corresponding to the ribs. The rib shows the anchor effect for the resin filled within the hollow. | 09-16-2010 |
20120025210 | OPTICAL MODULE ENCLOSING LEAD FRAME AND SEMICONDUCTOR OPTICAL DEVICE MOUNTED ON THE LEAD FRAME WITH TRANSPARAENT MOLD RESIN - An optical module with a new arrangement is disclosed. The optical module molds devices with a resin transparent to light subject to the device mounted on the lead frame and electrically connected with the lead frame by the bonding wire. The lead frame provides a screen apart from the device by a distance substantially comparable with a dimension of the device. The screen compensates the stress induced in the bonding wire due to a large discrepancy on the thermal expansion coefficient of the transparent resin. | 02-02-2012 |
20140215816 | METHOD TO ASSEMBLE TRANSMITTER OPTICAL SUBASSEMBLY - A method to assemble a transmitter optical module is disclosed, where the optical module installs two lenses, one of which concentrates an optical beam emitted from a laser diode, while, the other collimates the optical beam concentrated by the former lens. The method has a feature that the first lens is firstly positioned in a point to collimate the optical beam coming from the laser diode, then, moved to a point, which is apart from the former point with respect to the laser diode, to concentrate the optical beam. The process performs the steps to position the lens by a jig to extract the optical beam passing through the first lens outside of the housing. | 08-07-2014 |
20140321856 | WAVELENGTH MULTIPLEXED TRANSMITTER OPTICAL MODULE - A transmitter optical module is disclosed. The transmitter optical module has optical sources each emitting optical beam with a specific wavelength different from others and lenses corresponding to the optical sources. The optical sources and the lenses are mounted on a carrier. The carrier provides grooves surrounding rectangular areas where each of the lenses is mounted. | 10-30-2014 |
20140345297 | OPTICAL MODULE WITH ENHANCED HEAT DISSIPATING FUNCTION - An optical module to enhance the heat dissipating function is disclosed. The optical module includes an optical assembly, a heat spreader, and a holder. The optical assembly emits light and dissipates heat in directions opposite to each other. The heat spreader is attached to the bottom of the optical assembly to conduct heat from the optical assembly effective to the outside. The holder securely holds the intermediate assembly of the optical assembly and the heat spreader. | 11-27-2014 |
20150098127 | OPTICAL MODULE OUTPUTTING POLARIZATION COMBINED OPTICAL BEAM - A transmitter optical module for emitting a polarization combined beam is disclosed. The transmitter optical module includes optical sources each emitting optical beams with polarizations substantially same with others, an optical isolator, and a polarization beam combiner (PBC). The optical isolator, by receiving the optical beams, outputs the optical beams with polarizations perpendicular to the other to the PBC. | 04-09-2015 |
20150333833 | METHOD TO PRODUCE OPTICAL MODULE HAVING MULTIPLE SIGNAL LANES AND OPTICAL MODULE - A method to produce an optical module, which includes more than one signal lanes each providing a semiconductor laser diode (LD), a first lens, and a second lens, is disclosed. The method first places the first lens in a position at which the optical beam output from the LD becomes a collimated beam, then, slightly shifts so as to be apart from the LD to convert the optical beam into a concentrated beam. The second lens is first placed in a position at which the optical beam from the first lens becomes a collimated beam, then, shifted so as to be apart from the first lens such that the optical output get through the coupling fiber becomes within a preset range. | 11-19-2015 |