| Patent Number |
Title Of Patent |
Date Issued |
| 7324567 |
Modulation frequency tunable optical oscillator |
January 29, 2008 |
| Provided is a millimeter-wave band frequency optical oscillator that can be used as an oscillation frequency signal source for a millimeter-wave forwarded to wireless subscribers from a base station of a millimeter-wave wireless subscriber communication system for a next generation ( |
| 7297976 |
Optoelectronic transmitter integrated circuit and method of fabricating the same using selective |
November 20, 2007 |
| Provided are an optoelectronic (OE) transmitter integrated circuit (IC) and method of fabricating the same using a selective growth process. In the OE transmitter IC, a driving circuit, which includes a double heterojunction bipolar transistor (DHBT) and amplifies received electric s |
| 7264987 |
Method of fabricating optoelectronic integrated circuit chip |
September 4, 2007 |
| Provided is a method of fabricating an optoelectronic integrated circuit chip. In particular, a method of fabricating an optoelectronic integrated circuit chip is provided, in which an optical absorption layer of a wave-guide type optical detector is grown to be thicker than a collector |
| 7068886 |
Millimeter wave oscillator using fiber Bragg grating |
June 27, 2006 |
| Provided is a millimeter wave oscillator for generating a high frequency signal required in wireless communication. The millimeter wave oscillator uses an overwritten fiber Bragg grating and a light detector such that two wavelengths in a certain phase relationship are produced to genera |
| 6975796 |
Modulation frequency tunable optical oscillator |
December 13, 2005 |
| The present invention relates to a millimeter wave frequency band optical oscillator used for an oscillating frequency signal source of millimeter waves transmitted from a repeater to a wireless subscriber in a millimeter wave wireless subscriber communication system for a next-generatio |
| 6917633 |
Frequency tunable optical oscillator with fiber grating mirrors |
July 12, 2005 |
| There is provided a millimeter wave band frequency optical oscillator predicted to be used as a millimeter wave oscillating frequency signal source in a base station of a millimeter wave wireless transmission system. The optical oscillator has a double resonator structure in which a |
| 6689667 |
Photoreceiver of selectively detecting light of a specific wavelength and the method of manufact |
February 10, 2004 |
| The present invention relates to a photoreceiver and method of manufacturing the same. For the purpose of a selective detection of a specific wavelength, if a waveguide type photodetector using a multiple quantum-well layer having a quantum confined stark effect as an optical absorpt |
| 6165811 |
Method of fabricating a high power semiconductor laser with self-aligned ion implantation |
December 26, 2000 |
| A method of fabricating a semiconductor laser comprises the steps of sequentially depositing a lower cladding layer, an active layer, a first upper cladding layer, an etching stop layer, a second upper cladding layer and an ohmic contact layer over a compound semiconductor substrate, |
