An optical spectral filter, angular filter and polariser

Details An optical spectral filter, angular filter and polariser An optical spectral filter, angular filter and polariser

G - Physics

02

B

G02B 5/20 (2006.01) G02B 5/30 (2006.01)

Patent

CA 2728594

A filter and fabrication process for a thin film filter that is based on frustrated total internal reflection and multiple waveguide layers, in which the waveguide modes are resonantly coupled. The physics of the design is related to prism coupling of light into planar waveguides, and waveguide coupling between planar waveguides in close proximity. Embodiments include a filter that acts as bandpass filters and polarizers, a filter that acts as a bandpass filter, polarizer and angle filter (spatial filter), , a filter that is widely tunable, and and filter that is widely tunable in both peak transmission wavelength and width. Methods of fabrication are disclosed, and methods to correct for manufacturing errors in thin film deposition are described. The filter embodiments can also be used in reflection as notch filters in wavelength and angle, for a particular polarization component.

Affiliated with

Also associated with

Rating

An optical spectral filter, angular filter and polariser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with An optical spectral filter, angular filter and polariser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An optical spectral filter, angular filter and polariser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1814150