Improved performance of tunable single-mode laser array based on high-order slotted surface grating

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 t...

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Bibliographic Details
Published in:Optics express 2015-05, Vol.23 (9), p.12072-12078
Main Authors: Abdullaev, Azat, Lu, Qiaoyin, Guo, Weihua, Wallace, Michael J, Nawrocka, Marta, Bello, Frank, Benson, Aaron, O'Callaghan, James, Donegan, John F
Format: Article
Language:English
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Summary: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.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.012072