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Narrow-band resonant optical reflectors and resonant optical transformers for laser stabilization and wavelength division multiplexing

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3 Author(s)
Kazarinov, R.F. ; AT&T Bell Laboratories, Murray Hill, NJ, USA ; Henry, C.H. ; Olsson, N.A.

We propose a new way of making highly resonant integrated optical circuits based on weak side-by-side coupling between waveguides and high Q distributed Bragg resonators. This method can be used to design a resonant optical reflector which, when used as a feedback element to a laser, will result in a compact structure that has both extremely narrow line width and very low chirp. By coupling the resonator to two waveguides, one on either side, an optical analog of the resonant transformer can be made. This device can be used for wavelength division multiplexing. Such multiplexer elements will both resonantly transform optical power from the laser to a common output channel and also provide feedback which locks the laser to the channel wavelength.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:23 ,  Issue: 9 )