发明名称 |
Integrated bi-directional dual axial gradient refractive index/diffraction grating wavelength division multiplexer |
摘要 |
A wavelength division multiplexer/demultiplexer is provided that integrates axial gradient refractive index elements with a diffraction grating to provide efficient coupling from a plurality of input optical sources (each delivering a single wavelength to the device) which are multiplexed to a single polychromatic beam for output to a single output optical source. The device comprises: (a) means for accepting an optical input from at least one optical source, the means including a planar surface; (b) a first coupler element comprising (1) a first axial gradient refractive index collimating lens having a planar entrance surface onto which the optical input is incident and (2) a first homogeneous index boot lens affixed to the first collimating lens and having a planar exit surface from which optical light exits; (c) a diffraction grating formed on the planar exit surface which combines a plurality of angularly separated diffracted wavelengths from the optical light; (d) a reflecting element for reflecting the plurality of diffracted wavelengths; (e) a second coupler element comprising (1) a second homogeneous index boot lens having a planar entrance surface onto which said plurality of diffracted wavelengths is incident and (2) a second axial gradient refractive index collimating lens affixed to the second homogeneous index boot lens; and (f) means for outputting at least one multiplexed, polychromatic output beam to an optical receiver, the means including a planar back surface. The device may be operated in either the forward or the reverse direction.
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申请公布号 |
US6137933(A) |
申请公布日期 |
2000.10.24 |
申请号 |
US19990257045 |
申请日期 |
1999.02.25 |
申请人 |
LIGHTCHIP, INC. |
发明人 |
HUNTER, BOYD V.;WADE, ROBERT K.;DEMPEWOLF, JOSEPH R.;CHEN, RAY T. |
分类号 |
G02B6/34;(IPC1-7):G02B6/34 |
主分类号 |
G02B6/34 |
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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