Trumpf announces subwavelength surface grating
Grating technology identified as key enabler to improve polarisation stability and signal performance in datacom VCSELs
Trumpf Photonic Components has announced a proprietary subwavelength surface grating technology for datacom VCSELs.
The company says a demonstration of the grating showed a stabilised polarisation mode, a key benefit amongst many others. A future release of the 100G VCSEL which has a ground-signal-ground (GSG) pad layout, will further enhance the performance.
“We are excited to bring patented and proven subwavelength surface-grating technology from our sensing products to datacom VCSELs where it brings a competitive edge for our 100Gbps VCSEL with lower relative intensity noise and robust polarisation stability. In addition, the GSG pad’s layout further enhances the performance due to less cross talk,” said Ralph Gudde, VP of marketing and sales at Trumpf Photonic Components.
