Optical frequency comb sources provide thousands of precise and accurate optical lines in a single device enabling the broadband and high-speed detection required in many applications. A main ...

Q. I have a silver comb, brush and mirror set. The tortoiseshell teeth have fallen out of the comb. (I’m not sure if they’re real tortoiseshell or plastic.) Also, the silver needs polishing. Whom can ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? “We experimentally demonstrate transmission of 1.84 Pbit s –1 over a 37-core, ...