Broadband hitless bypass switch for integrated photonic circuits

• Published in: IEEE photonics technology letters Vol. 18; no. 10; pp. 1137 - 1139
• Main Authors: Haus, H.A., Popovic, M.A., Watts, M.R.
• Format: Journal Article
• Language: English
• Published: New York IEEE 15.05.2006; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Add-drop filters; Balancing; Bypasses; Channels; hitless switching; Interferometers; Laboratories; Optical filters; Optical interferometry; Optical losses; Optical resonators; Optical switches; Optical switching; Optical tuning; Optical waveguides; Phase shifting interferometry; Photonics; resonators; Switches; Switching circuits; Tuning

A new microphotonic hitless switch is proposed. By enabling continuous, uninterrupted transition to a bypass path, it permits tuning of wavelength add-drop filters without disturbing intermediate channels. The scheme comprises two symmetrically actuated, 2 times 2 Deltabeta-type optical switches, an...