title: Improved performance of tunable single-mode laser array based on high-order slotted surface grating.
abstract: We present an improved design of a wavelength-tunable single-mode laser array based on a high order surface grating with non-uniformly spaced slots. The laser array consists of 12 slotted single-mode lasers. The fabricated device exhibits a quasi-continuous tuning range of more than 36 nm over the temperature range from 10°C - 45°C covering the full C-band. All lasers in the array have stable single-mode operation with side mode suppression ratio of 50 dB due to the modified slot design. A spectral linewidth of less than 500 kHz was obtained for all channels in the array.
authors.forename: Azat
authors.initials: A
authors.lastname: Abdullaev
authors.forename: Qiaoyin
authors.initials: Q
authors.lastname: Lu
authors.forename: Weihua
authors.initials: W
authors.lastname: Guo
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Wallace
authors.forename: Marta
authors.initials: M
authors.lastname: Nawrocka
authors.forename: Frank
authors.initials: F
authors.lastname: Bello
authors.forename: Aaron
authors.initials: A
authors.lastname: Benson
authors.forename: James
authors.initials: J
authors.lastname: O'Callaghan
authors.forename: John F
authors.initials: JF
authors.lastname: Donegan