Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/147470
Title: Sub-kHz linewidth, hybrid III-V/silicon wavelength-tunable laser diode operating at the application-rich 1647-1690 nm
Authors: Sia, Brian Jia Xu
Li, Xiang
Wang, Wanjun
Qiao, Zhongliang
Guo, Xin
Zhou, Jin
Littlejohns, Callum G.
Liu, Chongyang
Reed, Graham T.
Wang, Hong
Keywords: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2020
Source: Sia, B. J. X., Li, X., Wang, W., Qiao, Z., Guo, X., Zhou, J., Littlejohns, C. G., Liu, C., Reed, G. T. & Wang, H. (2020). Sub-kHz linewidth, hybrid III-V/silicon wavelength-tunable laser diode operating at the application-rich 1647-1690 nm. Optics Express, 28(17), 25215-25224. https://dx.doi.org/10.1364/OE.400666
Journal: Optics Express 
Abstract: The wavelength region about of 1650 nm enables pervasive applications. Some instances include methane spectroscopy, free-space/fiber communications, LIDAR, gas sensing (i.e. C2H2, C2H4, C3H8), surgery and medical diagnostics. In this work, through the hybrid integration between an III-V optical amplifier and an extended, low-loss wavelength tunable silicon Vernier cavity, we report for the first time, a III-V/silicon hybrid wavelength-tunable laser covering the application-rich wavelength region of 1647-1690 nm. Room-temperature continuous wave operation is achieved with an output power of up to 31.1 mW, corresponding to a maximum side-mode suppression ratio of 46.01 dB. The laser is ultra-coherent, with an estimated linewidth of 0.7 kHz, characterized by integrating a 35 km-long recirculating fiber loop into the delayed self-heterodyne interferometer setup. The laser linewidth is amongst the lowest in hybrid/heterogeneous III-V/silicon lasers.
URI: https://hdl.handle.net/10356/147470
ISSN: 1094-4087
DOI: 10.1364/OE.400666
Rights: © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:TL Journal Articles

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