期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 16, 期 4, 页码 999-1001出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2004.824999
关键词
amplifier noise; distributed Bragg reflector (DBR) lasers; distributed feedback (DFB) lasers; gratings; semiconductor optical amplifiers (SOAs)
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.
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