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"Generation of a tunable Dual-frequency source by operating a laser at " by Zhuqiu Chen, Yuxi Ruan et al.

A novel method for the generation of a tunable dual-frequency laser source is presented. The proposed system uses a laser diode with optical feedback and operating at period-one (P1) oscillation state. Through investigation on the optical spectra of the laser at this state, dual-frequency components can be obtained and the separation (i.e., the difference) of the two frequencies can be flexibly adjusted from 2.72GHz to 3.12GHz by varying the external cavity length. Such dual-frequency feature an...
Dual Frequency Laser Laser Dynamics Optical Feedback Period One
Source: uow.edu.au

Norway Tops Podium Once Again; US Women Finish 5th – FasterSkier.com

Hands up for the uncontested Norway win, Heidi Weng clutching the 4 x 5 k relay victory in Lahti, Finland. (Photo: NordicFocus) This World Cup coverage is made possible through the generous support of Marty and Kathy Hall and their A Hall Mark of Excellence Award. To learn more about A Hall Mark of Excellence Award or to learn how you can support FasterSkier’s coverage please contact info@fasterskier.com.   It was a foggy morning for the women’s 4×5 k relay in Lahti, Finland. With tempera...
United States Yaroslavskaya Oblast Sadie Bjornsen Sophie Caldwell Johanna Matintalo Tiril Udnes Weng

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