| Patent Number |
Title Of Patent |
Date Issued |
| 7356263 |
Signal processor for converting signal |
April 8, 2008 |
| Provided is a signal processor for converting a signal that converts a return to zero (RZ) signal into a non-return to zero (NRZ) signal, in which two 2R (re-amplifying, re-shaping) regenerators are connected in parallel between an input waveguide and an output waveguide with differe |
| 7277222 |
Apparatus and method for wavelength conversion and clock signal extraction using semiconductor o |
October 2, 2007 |
| Provided is an apparatus and method for simultaneous optical wavelength conversion and optical clock signal extraction using semiconductor optical amplifiers (SOAs). The apparatus includes: a wavelength converter receiving a pump beam having input information and a probe beam having a |
| 7174070 |
Ultrahigh-frequency light source using dual-wavelength laser with 3-dB beam splitter and method |
February 6, 2007 |
| A light source has a structure in which a 3-dB beam splitter is integrated with a Febry-Perot laser diode having a cleaved plane. A first waveguide grating and a first refractive index modifier changing a Bragg wavelength of the first waveguide grating are provided at one branch of the 3 |
| 7012945 |
Multi DFB laser diode |
March 14, 2006 |
| A multi DFB laser diode for generating spontaneous pulses comprises first and second DFB sections each of which has a substrate including a diffraction grating, an active layer formed on the substrate, a clad layer formed on the active layer and including a refraction varying layer, |
| 6928098 |
High frequency optical pulse source |
August 9, 2005 |
| Disclosed is a high frequency optical pulse source generating stable optical pulses over a wide current range in an optical transmission system to enhance stability and reliability, the high frequency optical pulse source implementing, in one chip, a multi-section distributed feedback |
