Recording holographic optical elements in planar waveguides with both interfering beams being guided modes has certain advantages. We show that such holograms can be efficiently recorded when only a small fraction of the guided modes penetrates the recording material that is deposited outside the main guiding region. An integrated optic wavelength-division demultiplexer is analyzed and implemented as a specific example. In this example the holographic grating also acts as a focusing element; thus no additional collimating or focusing lenses are required.
© 1994 Optical Society of America
Original Manuscript: August 4, 1992
Revised Manuscript: May 3, 1993
Published: March 1, 1994
Liviu Singher and Joseph Shamir, "Waveguide holographic elements recorded by guided modes," Appl. Opt. 33, 1180-1186 (1994)