The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2006
Filed:
Jul. 23, 2004
Ken Purchase, Mountain View, CA (US);
Martin Mckenzie, Los Altos Hill, CA (US);
Lili Huang, Santa Clara, CA (US);
Stephen Z. D. Cheng, Hudson Village, OH (US);
Frank W. Harris, Akron, OH (US);
Jason J. GE, Maplewood, MN (US);
Dong Zhang, Akron, OH (US);
Ken Purchase, Mountain View, CA (US);
Martin McKenzie, Los Altos Hill, CA (US);
Lili Huang, Santa Clara, CA (US);
Stephen Z. D. Cheng, Hudson Village, OH (US);
Frank W. Harris, Akron, OH (US);
Jason J. Ge, Maplewood, MN (US);
Dong Zhang, Akron, OH (US);
Lightwave Microsystems Corporation, San Jose, CA (US);
Abstract
Waveplate, planar lightwave circuit incorporating the waveplate, and method of making an optical device. The waveplate is formed of a mesogen-containing polymer film having a backbone and sidechains containing mesogen groups. The waveplate may be formed by producing a mesogen-containing polymer film having a nonzero birefringence of suitable dimensions for insertion into a planar lightwave circuit. The waveplate may be so inserted into an optical circuit of a planar lightwave circuit so that an optical signal traversing the waveplate is changed, for instance, to have two polarization states.