794.7 nm and 852.1 nm VCSELs for Miniature Rubidium and Cesium Atomic Clocks

Modern electronics such as secure communication links, high speed networks, and positioning systems require incredibly precise measurements of time, now increasing the demand for miniaturised atomic clock technology in a consumer market.

We are proud to offer single-mode VCSELs which are optimised for resonant Rubidium excitation at 794.7 nm and for resonant Cesium excitation at 852.1 nm (894.3nm on request). Precise selection criteria enable optimised excitation efficiency, and high modulation frequencies allowing coherent population trapping (CPT) with a power consumption as low as 5 mW. To enable an extended operating temperature range we offer diodes being packaged in a TO46-can, including a miniature thermoelectric element.