Title :
A gain-clamped SOA with distributed Bragg reflectors fabricated under both ends of active waveguide with different lengths
Author :
Kim, Hoin ; Lee, Jeongseok ; Yun, Inkuk ; Kim, Seungwoo ; Shin, Hyuncheol ; Hwang, Seongtaek ; Oh, Yunje ; Shim, Changsup
Author_Institution :
Telecommun. R&D Center, Samsung Electron., Gyeonggi-Do, South Korea
fDate :
4/1/2004 12:00:00 AM
Abstract :
We demonstrate a gain-clamped semiconductor optical amplifier (GC-SOA) which has gratings under both end regions of an active waveguide. Two gratings of the new GC-SOA are fabricated in different lengths. Their lasing modes and gain characteristics are measured and analyzed with different combinations of grating lengths. It shows different gain and noise characteristics according to the measurement direction in asymmetric grating combinations.
Keywords :
diffraction gratings; distributed Bragg reflectors; distributed feedback lasers; laser modes; laser noise; laser variables measurement; optical fabrication; optical waveguide theory; semiconductor optical amplifiers; active waveguide; amplifier noise; asymmetric grating combinations; distributed Bragg reflector lasers; distributed Bragg reflectors; distributed feedback lasers; gain characteristics; gain-clamped SOA; gratings; lasing modes; noise characteristics; semiconductor optical amplifier; Distributed Bragg reflectors; Gain measurement; Gratings; Length measurement; Noise measurement; Optical noise; Optical waveguides; Semiconductor device noise; Semiconductor optical amplifiers; Semiconductor waveguides;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.824999
