NeoPhotonics’ Narrow Linewidth Distributed Feedback Lasers (NLW-DFB) are designed to provide low-noise, single mode 1550nm laser source for cost effective telecom and sensing application. In telecom, NLW-DFB lasers enable fixed wavelength coherent applications where as in 3D sensing/Lidar applications, due to its narrow linewidth, NLW-DFBs deliver +200m range. NeoPhotonics’ NLW-DFB laser array technology when used along silicon photonics can enable chip scale, compact photonic integrated circuits for telecom and 3D sensing applications.
NLW-DFB lasers are manufactured in NeoPhotonics’ in-house fabs. Lasers are qualified to GR-468 requirements and widely deployed since early 2000s.
Laser design is a buried hetero-structure with optimized quantum well to provide high optical output power and narrow linewidth. These lasers temperature and current tuned to achieve desired operating frequency with typical output powers > 16dBm. Temperature tuning enables optical frequency tuning of ~400GHz whereas laser current tuning provide ~0.1GHz/mA optical frequency tuning