Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
An apparatus and a method for reducing battery consumption of a mobile terminal are provided. More particularly, an apparatus and a method for reducing battery consumption by allowing a mobile terminal to perform a wakeup process by expiration or update of a timer which coincides with a paging period in order to reduce battery consumption. The controller reduces a frequency of waking up from a sleep mode by matching a wakeup time set by a timer to a paging period with a certain condition is met.
Abstract:
The present invention relates to a multipurpose exercise apparatus. More specifically, the multipurpose exercise apparatus is configured so that various kinds of exercise can be done by turning a crescent-shaped main body up and down according to the kind of exercise desire by a user, and by stepping on the main body to mount thereon or sitting down thereon, thereby allowing exercise to be enjoyed regardless of place or time and to even be enjoyed outdoors in addition to indoors and the efficiency of exercise can be maximized even with simple exercise movements. The present invention is characterized in that it has a plate shape, and it comprises a main body (100), wherein a convex surface (10) is formed at the upper part, a concave surface (20) is formed at the lower part, a handle groove (12) is provided at both the terminal parts descending along the curvature of the convex surface (10), and a supporting protrusion (22) is integrally projected at the lower part of the handle groove (12) so as to allow the main body to be separated by a certain distance from the ground; and a handle (200) which is installed on one side of the upper convex surface (10) of the main body (100) and can be attached thereto or detached therefrom.