Photon crystal ratio light intensity light splitter
Title：
Photon crystal ratio light intensity light splitter
Application Number：
 200510012115
Application Date：
 2005/07/08
Announcement Date：
 2006/01/04
Pub. Date：
Publication Number：
 1715996
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G02B 27/10, G02B 6/26
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Huang Shengye, Wang Dongheng, Shi Junfeng
Key Words：
 Photon crystal, ratio, light intensity, light splitter
Abstract：
 The present invention provides a kind of photon crystal proportional light intensity light splitter. Line fault is introduced into two-dimensional or three-dimensional photon crystal to constitute input waveguide and coupling waveguide, and by means of directional coupling principle, light intensity is distributed to the output ports the input waveguide and the coupling waveguide guide in the required proportion to realize proportional light splitting. The device is one one-stage or multiple-stage tree structure, and the two output light beams of the foregoing stage are the two input light beams of the next stage. The multiple-stage structure light splitter can split one light beam into two or more output light beams in the required light intensity proportion. The device has very low loss and efficiency near 100 %.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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