发明名称 |
MODE FILTERING AND SELECTING METHOD AT MULTIPLE MODE WAVEGUIDE AND WAVEGUIDE AMPLIFIER, SEMICONDUCTOR LASER AND VCSEL USING THE SAME |
摘要 |
PURPOSE: A mode filtering and selecting method at a multiple mode waveguide and a waveguide amplifier, a semiconductor laser and vcsel using the same are provided to enable a single mode to be guided with respect to a single direction by a filtering or selection rule obtained by changing a periodic refractive index at a clad portion of a waveguide. CONSTITUTION: A waveguide amplifier using mode filtering at a multiple mode waveguide is provided to enlarge a core size of a multiple waveguide consisting of a core(20) and a clad, and to enlarge a size of a mode field even at a single mode, in which light is passed at the single mode, by making a refractive index of a clad by a refractive index structure of the clad have a higher refractive index(22) only at the single mode.
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申请公布号 |
KR20030023301(A) |
申请公布日期 |
2003.03.19 |
申请号 |
KR20010056452 |
申请日期 |
2001.09.13 |
申请人 |
KWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
KIM, DEOK YEONG;PARK, YONG U;SUNG, NAK HYEON;YUK, YEONG CHUN |
分类号 |
G02B6/14;(IPC1-7):G02B6/14 |
主分类号 |
G02B6/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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