title: Integrated remotely tunable optical delay line for millimeter-wave beam steering fabricated in an InP generic foundry.
abstract: A compact and fabrication-tolerant integrated remotely tunable optical delay line is proposed for millimeter-wave beam steering and is fabricated in an InP generic foundry. The proposed delay line is based on a spectrally cyclic-arrayed waveguide grating feedback loop. Its major features include the tolerant architecture with reduced chip size, and bi-directional operation with simplified remote tuning. Moreover, its cyclic feature guarantees further cascaded operations either for 2D radio beam steering or for high-resolution delay generation. The experimental results show less than 6.5-dB insertion loss of the integrated delay line. Five different delays from 0 to 71.6 ps are generated with less than 0.67-ps delay errors.
authors.forename: Z
authors.initials: Z
authors.lastname: Cao
authors.forename: N
authors.initials: N
authors.lastname: Tessema
authors.forename: S
authors.initials: S
authors.lastname: Latkowski
authors.forename: X
authors.initials: X
authors.lastname: Zhao
authors.forename: Z
authors.initials: Z
authors.lastname: Chen
authors.forename: V
authors.initials: V
authors.lastname: Moskalenko
authors.forename: K A
authors.initials: KA
authors.lastname: Williams
authors.forename: H P A
authors.initials: HP
authors.lastname: van der Boom
authors.forename: E
authors.initials: E
authors.lastname: Tangdiongga
authors.forename: A M J
authors.initials: AM
authors.lastname: Koonen