| Patent application number | Description | Published |
|---|
| 20090116523 | HYBRID LASER DIODE - Provided is a hybrid laser diode. The hybrid laser diode includes: a silicon layer constituting a slab waveguide; and a compound semiconductor layer disposed on the silicon layer to constitute a channel waveguide. | 05-07-2009 |
| 20090152528 | HIGH-POWER, BROAD-BAND, SUPERLUMINESCENT DIODE AND METHOD OF FABRICATING THE SAME - Provided are a superluminescent diode with a high optical power and a broad wavelength band, and a method of fabricating the same. The superluminescent diode includes: at least one high optical confinement factor (HOCF) region; and at least one low optical confinement factor (LOCF) region having a lower optical confinement factor than the HOCF region. The method includes obtaining a difference of optical confinement factors in the HOCF region and the LOCF region through a selective area growth method, the selective area growth method using a deposition thicknesses difference of thin layers according to a width difference of openings that expose a substrate. | 06-18-2009 |
| 20090154517 | HYBRID LASER DIODE FOR SINGLE MODE OPERATION AND METHOD OF FABRICATING THE SAME - Provided are a hybrid laser diode for single mode operation, and a method for manufacturing the hybrid laser diode. The hybrid laser diode includes a silicon layer, an active pattern disposed on the silicon layer, and a bonding layer disposed between the silicon layer and the active pattern. Here, the bonding layer includes diffraction patterns constituting a Bragg grating. | 06-18-2009 |
| 20090154880 | PHOTONICS DEVICE - Provided is a photonics device. The photonics device includes: a substrate including a star coupler region and a transition region; a lower core layer formed on the substrate; and upper core patterns formed on the substrate to define a waveguide. The upper core patterns are disposed on the lower core layer at the transition region, so that the transition region has a multi-layered core structure. | 06-18-2009 |
| 20090252457 | WAVEGUIDE STRUCTURE AND ARRAYED WAVEGUIDE GRATING STRUCTURE - Provided are a waveguide structure and an arrayed waveguide grating structure. The arrayed waveguide grating structure includes an input star coupler, an output star coupler, and a plurality of arrayed waveguides optically connecting the input star coupler and the output star coupler. Each of the arrayed waveguides includes at least one section having a high confinement factor and at least two sections having a relatively low confinement factor. The sections of the arrayed waveguides having a high confinement factor have the same structure. | 10-08-2009 |
| 20100142579 | RESONATOR OF HYBRID LASER DIODE - Provided is a resonator of a hybrid laser diode. The resonator includes: a substrate including a semiconductor layer where a hybrid waveguide, a multi-mode waveguide, and a single mode waveguide are connected in series; a compound semiconductor waveguide, provided on the hybrid waveguide of the semiconductor layer, having a tapered coupling structure at one end of the compound semiconductor waveguide, the tapered coupling structure overlapping the multi-mode waveguide partially; and a reflection part provided on one end of the single mode waveguide. The multi-mode waveguide has a narrower width than the hybrid waveguide and the single mode waveguide has a narrower width than the multi-mode waveguide. | 06-10-2010 |
| 20100150499 | PHOTONICS DEVICE HAVING ARRAYED WAVEGUIDE GRATING STRUCTURES - Provided is a photonics device including at least two arrayed waveguide grating structures. Each of the arrayed waveguide grating structures of the photonics device includes an input star coupler, an output star coupler, and a plurality of arrayed waveguides optically connecting the input star coupler to the output star coupler. Each of the arrayed waveguides includes at least one first section having a high confinement factor and at least two second sections having a low confinement factor. The first sections of the arrayed waveguides have the same structure. | 06-17-2010 |
| 20110141758 | OPTICAL COUPLER AND ACTIVE OPTICAL MODULE COMPRISING THE SAME - Provided are an optical coupler, which can improve miniaturization and integration, and an active optical module comprising the same. The optical coupler comprises a hollow optical block having a through hole formed to pass an optical fiber therethrough. The hollow optical block comprises at least one incidence plane, at least one internal reflection plane, and at least one tapering region. The incidence plane is disposed at the bottom of the hollow optical block, which is parallel to the through hole, to incident-transmit light. The internal reflection plane is disposed at the top of the hollow optical block, which is opposite to the incidence plane, to reflect the light, which is received from the incidence plane, into the hollow optical block. The tapering region is configured to concentrate the light on the optical fiber in the through hole. The tapering region is formed such that the outer diameter of the hollow optical block decreases away from the internal reflection plane and the incidence plane. | 06-16-2011 |
