In this Letter, we show that digital optical phase conjugation might be utilized to construct a new kind of wavelength-selective switches. When incorporated with a multimode interferometer, these switches have wide bandwidth, high tolerance for fabrication error, and low polarization dependency. They might help to build large-scale multiwavelength nonblocking switching systems, or even to fabricate an optical cross-connecting or routing system on a chip.
© 2013 Optical Society of America
Original Manuscript: August 27, 2013
Revised Manuscript: October 9, 2013
Manuscript Accepted: October 9, 2013
Published: November 13, 2013
Zhiyang Li and Havyarimana Claver, "Compact wavelength-selective optical switch based on digital optical phase conjugation," Opt. Lett. 38, 4789-4792 (2013)