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3 April 2003 Glass ion-exchange technology for wavelength management applications
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Abstract
We report the achievement of buried single-mode waveguides in special Boro-Aluminum-Silicate glass. The waveguides are characterized by very low propogation loss (<.01dB/cm) and negligible birefringence. The optical mode at the input and output ports is essentially identical to the mode of a standard single-mode optical fiber. We fabricated and tested several devices and report here 1×8 and 1×16 powers spitters and an interleaver defined for a 100GHz DWDM network. Due to the low birefringence of the waveguides, the TE and TM responses of the device are undistinguishable by customary characterization equipment. In addition we report a technique for permanent trimming of the otpical circuit by localized heating. This unique advantage of ion-exchange technology, allowed us the adjustment of devices' parameters at post-fabrication stage. As an example, the trimming of a 2×2 directional coupler manifested here in the control of coupling coefficient value over a wide range (0.04-1.5). The process control was such that a target value of 0.5 for the coefficient was accurately attained. The same process enabled us the tuning of the interleaver to the ITU grid within 10pm accuracy.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shlomo Ruschin, G. Hurwitz, T. Hurwitz, Avishai Kepten, E. Arad, Y. Soreq, and Shimon Eckhouse "Glass ion-exchange technology for wavelength management applications", Proc. SPIE 4944, Integrated Optical Devices: Fabrication and Testing, (3 April 2003); https://doi.org/10.1117/12.472034
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