title: Deep-etched high-density fused-silica transmission gratings with high efficiency at a wavelength of 1550 nm.
abstract: We describe the design, fabrication, and excellent performance of an optimized deep-etched high-density fused-silica transmission grating for use in dense wavelength division multiplexing (DWDM) systems. The fabricated optimized transmission grating exhibits an efficiency of 87.1% at a wavelength of 1550 nm. Inductively coupled plasma-etching technology was used to fabricate the grating. The deep-etched high-density fused-silica transmission grating is suitable for use in a DWDM system because of its high efficiency, low polarization-dependent loss, parallel demultiplexing, and stable optical performance. The fabricated deep-etched high-density fused-silica transmission gratings should play an important role in DWDM systems.
authors.affiliation: Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, China. shunquanwang@gmail.com
authors.forename: Shunquan
authors.initials: S
authors.lastname: Wang
authors.forename: Changhe
authors.initials: C
authors.lastname: Zhou
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Huayi
authors.initials: H
authors.lastname: Ru