Abstract
Titanium-diffused lithium niobate waveguides are widely used in current fiber optic networks because of their high-speed, electro-optic modulation, and low-loss integration with standard single-mode fibers. However, they cannot achieve small ring resonators owing to their lack of a high core-to-cladding index contrast. To overcome this challenge, we vertically integrate an emerging chalcogenide glass waveguide technology on well-established waveguides. We present, to our knowledge, the first arsenic trisulfide race-track ring resonator with a bend radius in an all-pass filter configuration, integrated on a waveguide. Vertical coupling is achieved using a unique taper design. Experimental results are shown for 10.6% coupling, 2.08 dB roundtrip loss, and a 25.4 GHz free-spectral range.
© 2009 Optical Society of America
Full Article | PDF ArticleMore Like This
Jaehyun Kim, Won Ju Sung, Ohannes Eknoyan, and Christi K. Madsen
Opt. Express 21(21) 24566-24573 (2013)
Antonio Canciamilla, Stefano Grillanda, Francesco Morichetti, Carlo Ferrari, Juejun Hu, J. David Musgraves, Kathleen Richardson, Anu Agarwal, Lionel C. Kimerling, and Andrea Melloni
Opt. Lett. 36(20) 4002-4004 (2011)
Shahar Levy, Matvei Klebanov, and Avi Zadok
Photon. Res. 3(3) 63-67 (2015)