1 January 1994 Low-threshold phase conjugate mirrors based on position-insensitive tapered waveguides
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The potential for substantial threshold reduction in stimulated Brillouin scatter phase conjugate mirrors (PCMs) was systematically studied using tapered hollow glass waveguides filled with carbon disulfide. Using a low-threshold PCM of 100 cm straight section length and 10 μm inner diameter, the threshold was reduced by a factor of 1000 compared to the bulk liquid threshold. Use of a tapered input alleviated alignment sensitivity normally encountered with small-input-diameter fibers, and allowed for the fabrication of wide-field-of-view PCMs (and Brillouin amplifiers) of a type useful in many applications. Performance of the low-threshold PCM was found to meet theoretical expectations.
Pinchas Shalev, Pinchas Shalev, Steven M. Jackel, Steven M. Jackel, Raphael Lallouz, Raphael Lallouz, Aharon Bornstein, Aharon Bornstein, } "Low-threshold phase conjugate mirrors based on position-insensitive tapered waveguides," Optical Engineering 33(1), (1 January 1994). https://doi.org/10.1117/12.149131 . Submission:

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